Current position:home >> Products >> G~R >> pH Meters -Portable

EC910 EC910X 10 IN 1 pH/mV Conductivity/TDS/DO Meter


EC910 EC910X 10 IN 1 pH/mV Conductivity/TDS/DO Meter

Order Information: 

1. EC910: pH, Cond./TDS/Salinity/Res. Sensor Made in China. 

2. EC910X: pH, Con./TDS/Salinity/Res. Sensor Made in UK. 


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:

1. High accuracy portable multi parameter water quality meter is equipped with a large backlit LCD display.

2. 1 to 5 points push-button calibration with auto-buffer recognition.

3. Selectable pH buffer standards (USA/NIST/DIN) or using the custom calibration solutions.

4. Automatic electrode slope display helps user decide whether to replace sensor.


ORP Mode: (ORP sensor is optional)

1. Single point offset calibration allows adjusting the displayed value to a known standard.

2. Relative and absolute millivolt measurement modes provide accurate ORP readings.


Ion Mode: (Ion sensors is optional)

1. 2 to 5 points calibration including the eight concentration calibration points can be selected.

2. Automatically recognize ion selective electrodes, does not need to specify type of ion.

3. Direct ion concentration readout simplifies the elaborate measurement process.

4. Selectable multiple concentration units including the ppm, mg/L and mol/L.

    1). Na: Sodium ion selective electrode, range: 0.1 to 23000ppm

    2). Cl: Chloride ion selective electrode, range: 1.8 to 35500ppm

    3). F: Fluoride ion selective electrode, range: 0.02ppm to saturation

    4). Ca: Calcium ion selective electrode, range: 0.02 to 4000ppm

    5). NO3: Nitrate ion selective electrode, range: 0.4 to 62000ppm

    6). Br:Bromide ion selective electrode, range: 0.4 to 79900ppm

    7). NH4: Ammonium ion selective electrode, range: 0.1 to 18000ppm

    8). Cn: Cyanide ion selective electrode, range: 0.2 to 260ppm

    9). Cd: Cadmium ion selective electrode, range: 0.01 to 11200ppm

    10) Cu: Copper ion selective electrode, range: 0.006 to 6400ppm

    11) I: Iodide ion selective electrode, range: 0.06 to 127000ppm

    12) Pb: Lead ion selective electrode, range: 0.2 to 20700ppm

    13) Ag: Silver ion selective electrode, range: 0.01 to 107900ppm

    14) K: Potassium ion selective electrode, range: 0.04 to 39000ppm

    15) S: Sulphide ion selective electrode, range: 0.003 to 32100ppm

    16) NH3: Ammonia ion selective electrode, range: 0.02 to 17000ppm

    17) WH: Water hardness electrode, range: 0.05 to 200mmol/L


Conductivity/TDS/Salinity/Resistivity Mode:

1. 1 to 5 points push-button calibration with automatic calibration solution recognition.

2. Selectable cell constants (0.1/1/10, standard is K1 sensor, for low range K0.1 or high range K10 sensor is optional), normalization temperatures (20/25°C), TDS conversion factors, seawater and practical salinity measurement modes.


Dissolved Oxygen Mode:

1. 1 or 2 points calibration using air-saturated water and zero oxygen solution.

2. Manual salinity and barometric pressure compensation improve the measurement accuracy.


Other Features:

1. Automatic Temperature Compensation provides accurate reading over the entire range.

2. Calibration Due Reminder prompts user to calibrate the meter regularly.

3. Stability indicator automatically shows current measurement status.

4. Auto-Hold function freezes stable measured value for easy viewing and recording.

5. Manual temperature calibration corrects temperature deviation.

6. Selectable temperature unit (°C or °F) meets different application requirements.

7. Automatic electrode diagnosis shows zero point offset and slope of the electrode.

8. Help message as a operational guide that helps you quickly begin using the meter.

9. System menu allows setting the 15 parameters, including the calibration points, resolutions, stability conditions, measurement units, etc.

10. Reset feature automatically resumes all parameters back to factory default options.

11. Expanded memory stores and recalls up to 500 readings.

12. Built-in real-time clock stamps stored data to meet GLP standard.

13. Stored data can be transferred into computer by USB communication interface.

14. Multi-mode power scheme (battery, power adapter, computer's USB port) ensures that use the meter smoothly.




1. Range: -2.000~20.000pH

2. Accuracy: ±0.002pH

3. Resolution: 0.1, 0.01, 0.001pH

4. Calibration Points: 1 to 5 points, USA, NIST, DIN Standards

5. Temperature Compensation: 0~100°C, 32~212°F, Manual or Automatic

mV (Sensor Optional)

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

Ion (Sensor Optional)

1. Range: 0.001~19999ppm, mg/L, mol/L (Depending on range of ISE)

2. Accuracy: ±0.5% F.S (Monovalent), ±1% F.S (Divalent)

3. Resolution: 0.001, 0.01, 0.1, 1

4. Calibration Points: 2 to 5 points

5. Calibration Solutions: 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000ppm, mol/L, mg/L


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

9. Normalization Temperature: 20 or 25°C


1. Range: 0~10ppt (Max. 20ppt, depending on factor setting)

2. Accuracy: ±1% F.S

3. TDS Factor: 0.1~1.0 (Default 0.5)


1. Range: 0~10ppt (Max. 80ppt)

2. Accuracy: ±1% F.S

3. Measurement Modes: Seawater or Practical Salinity


1. Range: 0~100MΩ

2. Accuracy: ±1% F.S

3. Resolution: 0.01, 0.1, 1

Dissolved Oxygen (DO)

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

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. 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


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 x 1.5V "AA" Batteries

10. Battery Life: Approximately 150 hours (Turn off the backlit)

11. Dimensions: 170(L)x 85(W) x 30(H)mm

12. Weight: 300g


Amtast USA Inc.   TEL:

438 Skyline Dr E Lakeland FL.33809 USA FAX: +1-815-3663903 EMAIL:

Copyright © 2011~2023