Menu driven, sealed, backlit, pH/mV monitor/transmitter with tinned lead connectors.

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pH, ORP, Temperature In-line transmitter. 1/8 DIN, RoHS compliant, panel mount pH/ORP/Temp transmitter with backlight. Extremely price competitive.

  • Easy to install 1/8 DIN plastic casing.
  • Clear LCD displays pH, mV or temperature with backlight.
  • Universal power supply input from 100 to 240 V AC.
  • Automatic buffer recognition of US and NIST buffer sets. Calibrated data is stored in memory and ready to for use on power up.
  • Automatic or manual temperature compensation.
  • Displays absolute and relative ORP.
  • Isolated RS-485 output (Modbus protocol)
  • RoHs, CE compliant.


pH Range
-2.00 to 16.00 pH
pH Resolution
0.01 pH
pH Accuracy
±0.1% F.S. ± 1 digits
mV (RmV) Range
-1999 to 1999 mV (-2999 to 2999 mV)
mV (RmV) Resolution
1 mV
mV (RmV) Accuracy
±0.1% F.S. ± 1 digits
Temperature Range
-10.0 to 120.0 °C
Temperature Resolution
0.1 °C
Temperature Accuracy
±0.3 °C
pH buffer recognition
US (4.01,7.00,10.01) or NIST (4.00,6.86,9.18) user selectable
pH Electrode Offset Recognition
±100 mV at 7.00 pH /-91.7 mV to 108.3mV at 6.86 pH
pH Electrode Slope Recognition
±30% at 4.00 , 4.01, 9.18 or 10.01 pH
Temp Compensaton
Auto/manual -10.0 to 120.0 °C (Thermistor, 10K ohm/PT-1000)
Input impedance
>1013 ohms
Input Select
User selectable pH or ORP
Isolated RS-485 output (Modbus protocol)
LCD with backlighting
100 to 240 V AC at 50/60 Hz
Ambient Temperature Range
From 0 to 50 °C
1/8 DIN case , 90 mm depth
290 g

Documentation and Supports