DISSOLVED OXYGEN (DO) METERS أجهزة قياس الأكسجين المذاب - شركة الجوهري لأجهزة القياس العلمية

PORTABLE DISSOLVED OXYGEN METER 1

Feature:
1. Microprocessor based for fast and accurate measurements.
2. Special viewing angle designed of waterproof housing IP 57 rated. It floats on water.
3. Large LCD display and Temperature Simultaneously.
4. Simple to calibrate by one keyboard and automatic temperature compensation (ATC), Manual Salinity (MSC) and Altitude (MAC) Compensation.
5. Multi-functions with Data-hold, Max/Min and shows PTS after calibration. Degree ºC/ºF are switchable.
6. Low battery and consumption indicator. Auto power shut off after 10 minutes of non use.
7. Easy to replace electrode module and the type of electrode would be recognized automatically and shown in display during insertion.

Specifications:
	DO	O2	Temp
Range	0~20.00mg/L	0~200%	0~90.0ºC
Accuracy	±0.2 + 1digit	±2% FS	±0.2+1 digit
Resolution	0.01	0.1	0.1
ATC	0~50ºC
MSC	0~50ppt
MAC	0-20000 ft
Calibration	100% in air
Power	DC1.5V x 4 battery AAA/UM-4
Dimensions	Meter: 195 x 40 x 36 mm, Kits: 230 x 205 x 50 mm
Weight	Meter: 135g(with battery), Kits: 780g

PORTABLE DISSOLVED OXYGEN METER 2

Feature: 1. Microprocessor based for fast and accurate measurements. 2. Waterproof housing IP 57 rated. It floats on water. 3. Large LCD display and Temperature Simultaneously. 4. Auto Power Off
Range:	0.0~19.9mg/L
Resolution:	0.1mg/L
Accuracy:	±0.5mg/L
Temp.:	0.0~99.9ºC
Temp. Resolution:	0.1ºC
Temp. Accuracy:	±0.5ºC
ATC:	5~45ºC
Calibration Alarm:	Yes
Auto Off	After 10 minutes
Power:	4 x 1.5V Button Cell
Size:	1703737mm
Weight:	90g

POCKET DISSOLVED OXYGEN METER 3

Applications: • Water and wastewater treatment • Pond water and aquarium • Aquaculture • Industrial process monitoring • Surface and ground water monitoring • Education and other applications
Features: • Pocket dissolved oxygen meter comes with a polarographic sensor. • 1 or 2 points calibration using the air-saturated water and zero oxygen solution. • Manual salinity and barometric pressure compensation improve the measurement accuracy. • Automatic Temperature Compensation ensures accurate reading over the entire range. • Auto-Hold function freezes stable measured value for easy viewing and recording. • Battery indicator shows the remaining battery capacity. • Auto-Power Off helps user effectively conserve battery life. • System menu allows setting the 6 parameters, including the number of calibration points, temperature unit, concentration unit, etc. • Reset feature automatically resumes all parameters back to factory default settings.
Specifications: Dissolved Oxygen: 1. Range: 0.0~20.0mg/L (or ppm) 2. Accuracy: ±0.5mg/L 3. Resolution: 0.1mg/L % Saturation of Oxygen 1. Range: 0.0~200.0% 2. Accuracy: ±10% F.S 3. Resolution: 0.1% Others: 1. Temperature Compensation: 0~40°C, 32~104°F 2. Barometric Pressure Correction: 60.0~112.5kPa, 450~850mmHg 3. Salinity Correction: 0~35g/L 4. Hold Function: Manual or Automatic 5. Power Off: Manual or Automatic (8 minutes after last key pressed) 6. Reset Function: Yes 7. Sensor Type: Polarographic DO Probe (cable length 2m) 8. Connector: 6-pin Mini Plug 9. Power Requirements: 2×1.5V "AAA" Batteries 10. Battery Life: Approximately 150 hours 11. Dimensions: 175(L)×40(Dia.)mm 12. Weight: 100g

PORTABLE DISSOLVED OXYGEN METER 4

Automatic Calibration:
The meter can be calibrated by one or two points. The meter with function of auto recognition when in calibration. If you used solution by mistake, The meter will display tips automatically and save the original value.
Automatic Temperature Compensation:
Due to influence on the range of dissolvability and diffusion caused by temperature, the meter must compensate temperature when measure dissolved oxygen. This series with function of automatic temperature compensation and measurement bring your convenience. After the meter's sensor connected to host, it will enter temperature measurement and compensation mode automatically.
Salinity Coefficient and Atmospheric Pressure:
The salt dissolved in solution will limit oxygen content. Relationship between oxygen's concentration and nutrient changed with the salinity of sample solution. The meters can set salinity value in the range of 0 to 35g/L, and can set atmospheric pressure in the range of 450 to 850 mmHg.
Save Data:
The meter can save data 48 sets. Press [SAVE], and the meter will store current measured value automatically and serial number, date, time and other information.
Output Data:
The data stored in meter can be sent to PC through link. You can also save measured value or print out test report via software.
Multi-Measurement Units:
The meter can set parameter units accord with your country. E.G The conversion between measured units mg/L and ppm; Pressure units kPa and mmHg; Temperature units ºC and ºF.

Model	DO-4-1	DO-4-2
Dissolved Oxygen Range	0.0~20.0mg/L or ppm	0.0~20.0mg/L or ppm
Resolution	0.1mg/L	0.01mg/L
Dissolved Oxygen Accuracy	±0.5mg/L	±0.3mg/L
Saturation of Oxygen	0.0~200.0%	0.0~200.0%
Accuracy	±10.00%	±5.00%
Temperature Range	0.0~50.0^oC or 32~122ºF
Temperature Accuracy	±1^oC, ±1.8ºF
Temperature Compensation	0.0~40.0ºC, Automatic
Calibration Points	1 or 2 Points
Salinity Correction	0~35g/L, Adjustable
Atmospheric Pressure Correction	450~850mmHg or 60.0~112.5kPa
Memory	48
Output	USB
Power Requirement	9V/800mA Battery
Display	4.3 inch LCD
Dimension	185(L) x 88(W) x 32(H)mm
Weight	300g

PORTABLE DISSOLVED OXYGEN METER 5

DO900 precision dissolved oxygen meter are used to measure amount of gaseous oxygen dissolved in a liquids.
Specifications and Features:
Range: 0-40.00 mg/L (ppm)
Accuracy: +-0.10% F.S.
ATC: 0-45ºC
Automatic Salinity Compensation: 0-45ppt
Manual Air Pressure Compensation: 66-200kPa
IP57 waterproof
Polarogram type DO electrode with special electrode calibration sets, electrode polarization for only 3-5 minutes
DO electrode can simultaneously measure DO, Conductivity and Temperature to realize automatic salinity compensation for DO measurement.

3 IN 1 pH/ORP/ DO Meter EC6 (Chinese pH Probe) EC7 (UK pH Probe)

Multi parameter portable pH/Dissolved Oxygen meter contains 3 measurement modes. The meter is used for measuring the pH, ORP and DO of the liquids.
Features: pH Mode: • Multi parameter portable pH/Dissolved Oxygen meter is equipped with a large backlit LCD. • 1 to 5 points push-button calibration with auto-buffer recognition. • Selectable pH buffer standard (USA/NIST/DIN) or using the custom calibration solutions. • Automatic electrode slope display helps user decide whether to replace sensor. ORP Mode: • Single point offset calibration allows adjusting the displayed value to a known standard. • Relative and absolute millivolts measurement modes provide accurate ORP readings. Dissolved Oxygen Mode: • 1 or 2 points calibration using the air-saturated water and zero oxygen solution. • Manual salinity and barometric pressure compensation improve the measurement accuracy. Other Features: • Automatic Temperature Compensation provides accurate reading over the entire range. • Calibration Due Reminder prompts user to calibrate the meter regularly. • Stability indicator automatically shows current measurement status. • Auto-Hold function freezes stable measured value for easy viewing and recording. • Manual temperature calibration corrects temperature deviation. • Selectable temperature unit (°C or °F) meets different application requirements. • Automatic electrode diagnosis shows zero point offset and slope of the electrode. • Help message as a operational guide that helps you quickly begin using the meter. • System menu allows setting the 11 parameters, including the number of calibration points, resolution, stability condition, measurement unit, etc. • Reset feature automatically resumes all parameters back to factory default settings. • Expanded memory stores and recalls up to 500 readings. • Built-in real-time clock stamps stored data to meet GLP standard. • Stored data can be transferred into computer by USB communication interface. • Multi-mode power scheme (battery, power adapter, computer's USB port) ensures that use the meter smoothly.
Specifications: pH 1. Range: -2.000~20.000pH 2. Accuracy: ±0.002pH 3. Resolution: 0.1, 0.01, 0.001pH, Selectable 4. Calibration Points: 1 to 5 points 5. Calibration Solutions: USA, NIST, DIN or User-defined 6. Temperature Compensation: 0~100°C, 32~212°F 7. Compensation Mode: Manual or Automatic mV 1. Range: -1999.9~1999.9mV 2. Accuracy: ±0.2mV 3. Resolution: 0.1, 1mV 4. Calibration Points: 1 point (Only for Relative mV mode) 5. Calibration Range: ±200mV Dissolved Oxygen 1. Range: 0.00~20.00mg/L (or ppm) 2. Accuracy: ±0.2mg/L 3. Resolution: 0.01mg/L 4. Calibration Points: 1 or 2 points 5. Temperature Compensation: 0~50°C, 32~122°F, Automatic 6. Pressure Correction: 60.0~112.5kPa, 450~850mmHg 7. Salinity Correction: 0~50g/L % Saturation of Oxygen 1. Range: 0.0~200.0% 2. Accuracy: ±2.0% 3. Resolution: 0.1, 1% Temperature 1. Range: 0~105°C, 32~221°F 2. Accuracy: ±0.5°C, ±0.9°F 3. Resolution: 0.1°C 4. Calibration Points: 1 point 5. Calibration Range: Measured value ±10°C Others 1. Hold Function: Manual or Automatic 2. Stability Conditions: Low or High 3. Calibration Due: 0 to 31 days 4. Power Off: Manual or Automatic (10, 20, 30 minutes) 5. Reset Function: Yes 6. Memory: Stores up to 500 data sets 7. Output: USB Communication Interface 8. Connector: BNC, 6-pin Mini Plug 9. Power Requirements: 3×1.5V "AA" Batteries 10. Battery Life: Approximately 150 hours (Turn off the backlit) 11. Dimensions: 170(L)×85(W)×30(H)mm 12. Weight: 300g

Conductivity/Dissolved Oxygen Meter EC902 (Chinese Conductivity Probe) EC902X (UK Probe)

Multi parameter portable Conductivity/Dissolved Oxygen meter contains 5 measurement modes. The meter is suitable for measuring the Conductivity, TDS, Salinity, Resistivity and DO of the liquids.
Features: Conductivity/TDS/Salinity/Resistivity Mode: • Multi parameter portable Conductivity/Dissolved Oxygen meter is equipped with a large backlit LCD display. • 1 to 5 points push-button calibration with automatic calibration solution recognition. • Selectable cell constant (0.1/1/10), normalization temperature (20/25°C), TDS conversion factor, seawater and practical salinity measurement modes. • Linear or pure water compensation improves measurement accuracy of meter. Dissolved Oxygen Mode: • 1 or 2 points calibration using the air-saturated water and zero oxygen solution. • Manual salinity and barometric pressure compensation improve the measurement accuracy. Other Features: • Automatic Temperature Compensation provides accurate reading over the entire range. • Calibration Due Reminder prompts user to calibrate the meter regularly. • Stability indicator automatically shows current measurement status. • Auto-Hold function freezes stable measured value for easy viewing and recording. • Manual temperature calibration corrects temperature deviation. • Selectable temperature unit (°C or °F) meets different application requirements. • Help message as a operational guide that helps you quickly begin using the meter. • System menu allows setting the 13 parameters, including the number of calibration points, resolution, stability condition, measurement unit, etc. • Reset feature automatically resumes all parameters back to factory default settings. • Expanded memory stores and recalls up to 500 readings. • Built-in real-time clock stamps stored data to meet GLP standard. • Stored data can be transferred into computer by USB communication interface. • Multi-mode power scheme (battery, power adapter, computer's USB port) ensures that use the meter smoothly.
Specifications: Conductivity 1. Range: 0~20.00, 200.0, 2000µS/cm, 20.00, 200.0mS/cm 2. Accuracy: ±0.5% F.S 3. Calibration Points: 1 to 5 points 4. Calibration Solutions: 10µS/cm, 84µS/cm,1413µS/cm,12.88mS/cm,111.8mS/cm 5. Temperature Compensation: 0~100°C, 32~212°F, Manual or Automatic 6. Temperature Coefficient: 0.0~10.0%/°C 7. Compensation Modes: Linear or Pure Water 8. Cell Constant: K=0.1, 1, 10 or User-defined 9. Normalization Temperature: 20°C or 25°C TDS 1. Range: 0~100ppt (Max. 200ppt, depending on factor setting) 2. Accuracy: ±1% F.S 3. TDS Factor: 0.1~1.0 (Default 0.5) Salinity: 1. Range: 0~10ppt (Max. 80ppt) 2. Accuracy: ±1% F.S 3. Measurement Modes: Seawater or Practical Salinity Resistivity 1. Range: 0~100MΩ 2. Accuracy: ±1% F.S 3. Resolution: 0.01, 0.1, 1 Dissolved Oxygen 1. Range: 0.00~20.00mg/L (or ppm) 2. Accuracy: ±0.2mg/L 3. Resolution: 0.01mg/L 4. Calibration Points: 1 or 2 points 5. Temperature Compensation: 0~50°C, 32~122°F, Automatic 6. Pressure Correction: 60.0~112.5kPa, 450~850mmHg 7. Salinity Correction: 0~50g/L % Saturation of Oxygen 1. Range: 0.0~200.0% 2. Accuracy: ±2.0% 3. Resolution: 0.1, 1% Temperature 1. Range: 0~105°C, 32~221°F 2. Accuracy: ±0.5°C, ±0.9°F 3. Resolution: 0.1°C 4. Calibration Points: 1 point 5. Calibration Range: Measured value ±10°C Others 1. Hold Function: Manual or Automatic 2. Stability Conditions: Low or High 3. Calibration Due: 0 to 31 days 4. Power Off: Manual or Automatic (10, 20, 30 minutes) 5. Reset Function: Yes 6. Memory: Stores up to 500 data sets 7. Output: USB Communication Interface 8. Connector: 6-pin Mini Plug 9. Power Requirements: 3×1.5V "AA" Batteries 10. Battery Life: Approximately 150 hours (Turn off the backlit) 11. Dimensions: 170(L)×85(W)×30(H)mm 12. Weight: 300g

10 IN 1 pH/mV Conductivity/TDS/DO Meter EC910 (Chinese Probe) EC910X (UK Probe)

Features: High accuracy multi parameter water quality meter includes 8 measurement modes, the meter is suitable for measuring the pH, ORP, Ion concentration, Conductivity, TDS, Salinity, Resistivity and Dissolved Oxygen of the liquids.
pH Mode: • High accuracy portable multi parameter water quality meter is equipped with a large backlit LCD display. • 1 to 5 points push-button calibration with auto-buffer recognition. • Selectable pH buffer standards (USA/NIST/DIN) or using the custom calibration solutions. • Automatic electrode slope display helps user decide whether to replace sensor.
ORP Mode: • Single point offset calibration allows adjusting the displayed value to a known standard. • Relative and absolute millivolt measurement modes provide accurate ORP readings.
Ion Mode: • 2 to 5 points calibration including the eight concentration calibration points can be selected. • Automatically recognize ion selective electrodes, does not need to specify type of ion. • Direct ion concentration readout simplifies the elaborate measurement process. • Selectable multiple concentration units including the ppm, mg/L and mol/L.
Conductivity/TDS/Salinity/Resistivity Mode: • 1 to 5 points push-button calibration with automatic calibration solution recognition. • Selectable cell constants (0.1/1/10), normalization temperatures (20/25ºC), TDS conversion factors, seawater and practical salinity measurement modes.
Dissolved Oxygen Mode: • 1 or 2 points calibration using air-saturated water and zero oxygen solution. • Manual salinity and barometric pressure compensation improve the measurement accuracy.
Other Features: • Automatic Temperature Compensation provides accurate reading over the entire range. • Calibration Due Reminder prompts user to calibrate the meter regularly. • Stability indicator automatically shows current measurement status. • Auto-Hold function freezes stable measured value for easy viewing and recording. • Manual temperature calibration corrects temperature deviation. • Selectable temperature unit (ºC or ºC) meets different application requirements. • Automatic electrode diagnosis shows zero point offset and slope of the electrode. • Help message as a operational guide that helps you quickly begin using the meter. • System menu allows setting the 15 parameters, including the calibration points, resolutions, stability conditions, measurement units, etc. • Reset feature automatically resumes all parameters back to factory default options. • Expanded memory stores and recalls up to 500 readings. • Built-in real-time clock stamps stored data to meet GLP standard. • Stored data can be transferred into computer by USB communication interface. • Multi-mode power scheme (battery, power adapter, computer's USB port) ensures that use the meter smoothly.

Specifications:

1. pH	•Range: -2.000~20.000pH •Accuracy: ±0.002pH •Resolution: 0.1, 0.01, 0.001pH •Calibration Points: 1 to 5 points, USA, NIST, DIN Standards •Temperature Compensation: 0~100ºC, 32~212ºF, Manual or Automatic
2. mV	•Range: -1999.9~1999.9mV •Accuracy: ±0.2mV •Resolution: 0.1, 1mV •Calibration Points: 1 point (Only for Relative mV mode) •Calibration Range: ±200mV
3. Ion	•Range: 0.001~19999ppm, mg/L, mol/L (Depending on range of ISE) •Accuracy: ±0.5% F.S (Monovalent), ±1% F.S (Divalent) •Resolution: 0.001, 0.01, 0.1, 1 •Calibration Points: 2 to 5 points •Calibration Solutions: 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000ppm, mol/L, mg/L
4. Conductivity	•Range: 0~20.00, 200.0, 2000µS/cm, 20.00, 200.0mS/cm •Accuracy: ±0.5% F.S •Calibration Points: 1 to 5 points •Calibration Solutions: 10µS/cm, 84µS/cm,1413µS/cm,12.88mS/cm,111.8mS/cm •Temperature Compensation: 0~100ºC, 32~212ºF, Manual or Automatic •Temperature Coefficient: 0.0~10.0%/ºC •Compensation Modes: Linear or Pure Water •Cell Constant: K=0.1, 1, 10 •Normalization Temperature: 20 or 25ºC
5. TDS	•Range: 0~100ppt (Max. 200ppt, depending on factor setting) •Accuracy: ±1% F.S •TDS Factor: 0.1~1.0 (Default 0.5)
6. Salinity	•Range: 0~10ppt (Max. 80ppt) •Accuracy: ±1% F.S •Measurement Modes: Seawater or Practical Salinity
7. Resistivity	•Range: 0~100MΩ •Accuracy: ±1% F.S •Resolution: 0.01, 0.1, 1
8. Dissolved Oxygen (DO)	•Range: 0.00~20.00mg/L (or ppm) •Accuracy: ±0.2mg/L •Resolution: 0.01mg/L •Calibration Points: 1 or 2 points •Temperature Compensation: 0~50ºC, 32~122ºF •Pressure Correction: 60.0~112.5kPa, 450~850mmHg •Salinity Correction: 0~50g/L
9. Saturation of Oxygen	•Range: 0.0~200.0% •Accuracy: ±2.0% •Resolution: 0.1%
10. Temperature	•Range: 0~105ºC, 32~221ºF •Accuracy: ±0.5ºC, ±0.9ºF •Resolution: 0.1ºC •Calibration Points: 1 point •Calibration Range: Measured value ±10ºC
11. Others	Hold Function: Manual or Automatic Stability Conditions: Low or High Calibration Due: 0 to 31 days Power Off: Manual or Automatic (10, 20, 30 minutes) Reset Function: Yes Memory: Stores up to 500 data sets Output: USB Communication Interface Connector: BNC, 6-pin Mini Plug Power Requirements: 3 x 1.5V "AA" Batteries Battery Life: Approximately 150 hours (Turn off the backlit) Dimensions: 170(L)x 85(W) x 30(H)mm Weight: 300g

Bench pH/mV Conductivity/TDS/DO Meter EC911 (Chinese Probe) EC911X (UK Probe)

Features: EC911 Benchtop Multiparameter Water Quality Meter contains 15 optional parameters. The meter is suitable for measuring the pH, ORP, Ion, Conductivity, TDS, Salinity, Resistivity and DO of the liquids.
pH Mode: • Multiparameter water quality meter is equipped with a large backlit LCD display. • 1 to 5 points push-button calibration with auto-buffer recognition. • Selectable pH buffer standard (USA/NIST/DIN) or using the custom calibration solutions. • Automatic electrode slope display helps user decide whether to replace sensor.
ORP Mode: • Single point offset calibration allows adjusting the displayed value to a known standard. • Relative and absolute millivolts measurement modes provide accurate ORP readings.
Ion Mode: • 2 to 5 points calibration including the eight concentration calibration points can be selected. • Automatically recognize ion selective electrodes, does not need to specify type of ion. • Direct ion concentration readout simplifies the elaborate measurement process. • Selectable multiple concentration units include the ppm, mg/L and mol/L.
Conductivity/TDS/Salinity/Resistivity Mode: • 1 to 5 points push-button calibration with automatic calibration solution recognition. • Selectable cell constant (0.1/1/10), normalization temperature (20/25°C), TDS conversion factor, seawater and practical salinity measurement modes. • Linear or pure water compensation improves measurement accuracy of meter.
Dissolved Oxygen Mode: • 1 or 2 points calibration using the air-saturated water and zero oxygen solution. • Manual salinity and barometric pressure compensation improve the measurement accuracy.
Other Features: • Automatic Temperature Compensation provides accurate reading over the entire range. • Calibration Due Reminder prompts user to calibrate the meter regularly. • Stability indicator automatically shows current measurement status. • Auto-Hold function freezes stable measured value for easy viewing and recording. • Manual temperature calibration corrects temperature deviation. • Selectable temperature unit (°C or °F) meets different application requirements. • Automatic electrode diagnosis shows zero point offset and slope of the electrode. • Help message as a operational guide that helps you quickly begin using the meter. • System menu allows setting the 15 parameters, including the number of calibration points, resolution, stability condition, measurement unit, etc. • Reset feature automatically resumes all parameters back to factory default settings. • Expanded memory stores and recalls up to 500 readings. • Built-in real-time clock stamps stored data to meet GLP standard. • Stored data can be transferred into computer by USB communication interface.

Specifications:

1. pH	•Range: -2.000~20.000pH •Accuracy: ±0.002pH •Resolution: 0.1, 0.01, 0.001pH •Calibration Points: 1 to 5 points, USA, NIST, DIN Standards •Temperature Compensation: 0~100ºC, 32~212ºF, Manual or Automatic
2. mV	•Range: -1999.9~1999.9mV •Accuracy: ±0.2mV •Resolution: 0.1, 1mV •Calibration Points: 1 point (Only for Relative mV mode) •Calibration Range: ±200mV
3. Ion	•Range: 0.001~19999ppm, mg/L, mol/L (Depending on range of ISE) •Accuracy: ±0.5% F.S (Monovalent), ±1% F.S (Divalent) •Resolution: 0.001, 0.01, 0.1, 1 •Calibration Points: 2 to 5 points •Calibration Solutions: 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000ppm, mol/L, mg/L
4. Conductivity	•Range: 0~20.00, 200.0, 2000µS/cm, 20.00, 200.0mS/cm •Accuracy: ±0.5% F.S •Calibration Points: 1 to 5 points •Calibration Solutions: 10µS/cm, 84µS/cm,1413µS/cm,12.88mS/cm,111.8mS/cm •Temperature Compensation: 0~100ºC, 32~212ºF, Manual or Automatic •Temperature Coefficient: 0.0~10.0%/ºC •Compensation Modes: Linear or Pure Water •Cell Constant: K=0.1, 1, 10 •Normalization Temperature: 20 or 25ºC
5. TDS	•Range: 0~100ppt (Max. 200ppt, depending on factor setting) •Accuracy: ±1% F.S •TDS Factor: 0.1~1.0 (Default 0.5)
6. Salinity	•Range: 0~10ppt (Max. 80ppt) •Accuracy: ±1% F.S •Measurement Modes: Seawater or Practical Salinity
7. Resistivity	•Range: 0~100MΩ •Accuracy: ±1% F.S •Resolution: 0.01, 0.1, 1
8. Dissolved Oxygen (DO)	•Range: 0.00~20.00mg/L (or ppm) •Accuracy: ±0.2mg/L •Resolution: 0.01mg/L •Calibration Points: 1 or 2 points •Temperature Compensation: 0~50ºC, 32~122ºF •Pressure Correction: 60.0~112.5kPa, 450~850mmHg •Salinity Correction: 0~50g/L
9. Saturation of Oxygen	•Range: 0.0~200.0% •Accuracy: ±2.0% •Resolution: 0.1%
10. Temperature	•Range: 0~105ºC, 32~221ºF •Accuracy: ±0.5ºC, ±0.9ºF •Resolution: 0.1ºC •Calibration Points: 1 point •Calibration Range: Measured value ±10ºC
11. Others	• Hold Function: Manual or Automatic • Stability Conditions: Low or High • Calibration Due: 0 to 31 days • Power Off: Manual or Automatic (10, 20, 30 minutes) • Reset Function: Yes • Memory: Stores up to 500 data sets • Output: USB Communication Interface • Connector: BNC, 6-pin Mini Plug • Display: LCD (130×110mm) • Power Requirements: DC5V, using AC adapter, 220VAC/50Hz • Dimensions: 210(L)×188(W)×60(H)mm • Weight: 1.5kg

BENCH LAB DISSOLVED OXYGEN METER DO-980

　
DO-980 precision dissolved oxygen meter are used to measure amount of gaseous oxygen dissolved in a liquids.

Feature:
Two-point push-button calibration (Zero and 100%)
Automatic temperature compensation
Salinity and barometric pressure compensation
Multi-measurement units (mg/L/ppm; kPa/mmHg, etc.)
Automatic operation message prompts
Expanded memory stores and recalls up to 99 data sets
Built-in real-time clock stamps for stored data
USB Communication interface

Model	DO-980
Dissolved Oxygen Range	0.00~20.00mg/L or ppm
Resolution	0.01mg/L
Dissolved Oxygen Accuracy	±0.3mg/L
% Saturation of Oxygen	0.0~200.0%
Accuracy	±5.00%
Temperature Range	0.0~50.0ºC, 32~122ºF
Temperature Accuracy	±1ºC, ±1.8ºF
Temperature Compensation	0.0~40.0ºC, Automatic
Salinity Correction	0~35g/L
Barometric Pressure Correction	450~850mmHg, 60.0~112.5kPa
Calibration Points	1 or 2 Points, 100% in air or 0% in solution
Memory	99 data sets
Output	USB Communication interface
Power Requirements	DC9V, using AC adapters, 220VAC, 50Hz
Dimensions	210(L) x 188(W) x 60(H)mm

Dissolved Oxygen Meter DO-510

Range: Dissolved Oxygen: 0.00-19.99mg/L (liter).
Oxygen in Air: 0.0-255.0 %.
Accuracy: ±1.5% F.S.
Resolution: Dissolved Oxygen 0.01mg/L
Oxygen in Air: 0.1% O2
Temperature Compensation: 0 ~ 45ºC
Power Supply: DC 9V
Dimensions: 123 x 72 x 33mm

Dissolved Oxygen Meter DO-8401

Features:
■Measured DO &temperature can be displayed together
■Automatic power shutdown without operate for 20 minutes, battery saving
■Handheld design, easy to carry
■Low battery indicator
■Easy 100% D.O value calibration
■Automatic temperature compensation
■Backlight screen, easy to use in the shade
■Data can be transferred to the computer with the data line (RS232)

Technical Parameter
■Display type: LCD
■Measurement Range (in %): 0~199.9; Resolution: 0.1%
■Measurement Range (in ppm or mg/l): 0.00 ~ 19.99; Resolution: 0.01
■Accuracy: ±1.5% F.S
■Temperature Range: 0 ~ 30ºC
■Temperature Accuracy: ±0.5ºC
■Power supply: 4 x 1.5V batteries
■Weight: 150 grams
■Dimensions: 175 x 70 x 33mm
■Operating ambient temperature: 0 ~ +50ºC
■Relative humidity: 90% max

Dissolved Oxygen Meter DO-607A

FEATURES:

3/1/2LCD with blue-light
Automatic temperature compensation
Immediate response
Easy to carry
D.C. power supply: one piece of 9V battery
The electrode system is composed of polarographic oxygen electrode and temperature electrode

Range:
1. Range: Dissolved Oxygen: 0-20mg/L; Temp: 0-40ºC
2. Accuracy: Dissolved oxygen: ±0.3 mg/L±1bit (basic temperature); ±0.5mg/L±1bit (differ: ±10ºC from basic temperature);
Temperature: ±1ºC±1bit
3. Response time: ≤30s (90% response at 20.0ºC).
4. Stability of the meter: not over ±0.2mg/L ±1bit within one hour
5. Remaining current: ≤0.15mg/L
6. The range of automatic temperature compensation: 0-40ºC

Dissolved Oxygen Meter DO-608

FEATURES:

1. With the function of double displays of dissolved oxygen concentration value and temperature, dissolved oxygen saturation value and temperature
2.Measuring D.O. concentration, saturation, electrode current and temperature; With the functions of automatic temperature compensation and calibration of zero oxygen, full scale, atmosphere pressure and salinity.
3.The meter has the function of protection from electricity cutting off. With Measuring results can be stored, deleted, viewed and printed. At most 250 sets of data can be stored.
4. With wide screen LCD. It is easy to operate with the prompt facility. With PC panel of new material, thus the meter has good reliability.
5. With low power consumption design, with the functions of lack of voltage display, switching off automatically.
6.With RS-232 interface which is connected and with Model TP-16 printer to print measuring results or connected with computer to communicate.
7.Grade of the case protection is IP65, resistant to water and dirt, suitable for field operation
8.The electrode system is composed of polarographic oxygen electrode and temperature electrode.

Range:
1.Measuring range: Dissolved oxygen concentration: (0.00~19.99)mg/L; Dissolved oxygen saturation: (0.0~199.9)%; Temperature: (0~40.0)ºC.
2.Automatic temperature compensation range: (0.0~40.0)ºC.
3.Accuracy of the meter: D.O. concentration: ±0.3mg/L±1bit(basic temperature);±0.5mg/L (differ: ±15ºC from basic temperature); D.O. saturation : ±5.0% (basic temperature); ±10.0% differ: ±15ºC from basic temperature; Temperature: ±0.5ºC±1bit.
4.Repeatability of the meter: ≤0.2mg/L.
5.Stability of the meter: not over ±0.2mg/L within one hour.
6.Remaining current: ≤0.1mg/L.
7.Response time ≤20s (90% response at 20.0ºC).
8.Salinity calibrating range: (0.0~40.0)g/L.
9.IP65 protection grading

Dissolved Oxygen Meter DO-609L

Functions:
1. Support TFT touch colorful screen and navigation bar
2. Support measurement DO concentration, DO Saturation, DO current and temperature value
3. Support DO probe manage to five probes, to store 20 sets calibration data for every one DO probe
4. Support storing 2000 or 1000 measurement value with view function
5. Meet GLP norm
6. Support ID management
7. Support USB and Firmware Upgrade function
8. Long Standby Time

Specifications:
1. Range:
1) DO: 0.00~90.00mg/L
2) DO Saturation: 0.0~600.0%
3) Temperature: -5.0~130.0ºC
2. Accuracy:
1) DO: ±0.10mg/L
2) DO Saturation: ±2.0%FS
3) Temperature: ±0.1ºC
3. Temperature Compensation: Auto 0.0~50.0ºC
4. Salinity Calibration: Manual 0.0~50.0g/L
5. Barometric pressure: Auto 50.0~110.0KPa
6. Power supply: Li-on DC 3.8V

Dissolved Oxygen Controller DO-8600

Applications: Dissolved oxygen measure in industrial boiler inlet water, industrial ferment measure, water measure of environment protection
Features: Some of the data can be set, such as elevation, salinity etc; automatic temperature compensation Memory function in case of power off, no need to reserve a battery, data can be saved for more than 10 years Isolated, double channels 4~20mA output, digital communication terminal Pt 1000 temperature compensation component, with temperature control/communication function Double channels OCT configuration control output, with pulse frequency conversion output function, high/low limit alarm DC 24V power supply ,which meet the satety regulation even in damp site
Technical Data: Measure range: 0.00~19.99mg/L Resolution: 0.01mg/L 0.01% Accuracy: ±1.5% FS Automatic Temperature compensation: 0~45ºC Output signal: Isolated 4~20mA output Working environment temperature: 0~50ºC, Humidity: 90%RH max Control output mode: OC Contactor capacity: ≤80mA Power supply: DC 24V±15% Protection level: IP65 (when the back cover was covered) Outline dimension: 96 x 96 x 105mm (H x W x D) Hole size: 91 x 91mm (H x W) Fix mode: Panel mounting

DO Meter A005-7

Features:
Isolating transmitting output, with little interference.
Isolating RS485 communication.
DO/SAT/OPP measurement, temperature measurement,upper/lower limit control, transmitting output, RS485 communication.
Configurable manual and auto temperature offset function.
Configurable upper/lower limit alarm and delay.
Configurable hummer and LCD backlight switch.
Optional language, Chinese and English.
Zero oxygen and full-scale calibration.

Specifications:

Measurement variables: dissolved oxygen, saturation, oxygen partial pressure.
Measuring range: 0 - 20mg/L,0 - 200%,0 - 400hPa
Resolution: 0.01mg/L,0.1%,1hPa
Accuracy: ±1.5%FS
Repetition: ±0.5%FS
Temperature measurement type: NTC 10K/PT1000，auto A/manual H
Measuring range: -10 - 60℃
Resolution: 0.1℃
Correction accuracy: ±0.5℃
Output type: 4 - 20mA current transmission output Max. loop resistance: 750Ω
Accuracy: 0.1%FS
Output type: RS485 digital signal output
Communication protocol: standard MODBUS-RTU (customizable)
Power: AC220V±10%,50Hz/60Hz (optional 24V±10%)
Alarm relay: AC250V、3A

Laboratory Optical DO Sensor DO-102

Laboratory optical dissolved oxygen sensor is developed primary for scientific research and educational uses. The USB based sensor is designed as plug in and play sensor. It does not require a handheld unit or a controller. Just plug the senor into a computer or a Tablet, you will get readings in seconds.
Advantages of optical dissolved oxygen measurement · Easy use, no membrane, no electrolyte. · Long lifetime, maintenance free and less calibration. · No flow dependency and fast response. · Immune to electrical interference, no chemical interference.
Specifications Range: 0-20 mg/L or 0-200% sat Accuracy: +/-1% Response time: <10 sec Drifting: <1% per year Temperature Accuracy: +/- 0.2ºC Temperature and barometric pressure compensation: Build-in Automatic
Features: 1. USB connection: supporting USB2.0. No handheld meter is required. 2. Slim 16 mm design.