pH or ORP monitor/controller, analog voltage output , 2 relays, red LED display with pt-100 ATC.

Add this item to your custom quote page by clicking the above "add to quote" button.


1/8 DIN panel mount pH/ORP controller with dual SPDT Hi/Lo relays, manual set points and calibration are via potentiometers. Features a voltage/recorder output and an internal pH/ORP select switch. Display is a large bright red LED. Connectors are a BNC input and spade lug screw type connector block. Meter requires a Pt-100 ATC or a simulation resistor for temperature. Power115/230 VAC.

  • All solid state design
  • Low cost
  • Easy to install
  • Set points on front panel
  • Recorder output
  • 0.56 high efficiency red led display
  • 1/8 DIN aluminum case
  • Set points cover entire span
  • ATC for pH 0 to 100 °C
  • Internal pH/ORP select switch
  • Low power consumption design, reduced internal heating thus increased reliability


pH Range
0 to 14.0 pH
pH Resolution
0.1 pH
pH Accuracy
±0.1 pH ± 1 digit
ORP Range
-1990 to 1990 mV
ORP Resolution
10 mV
ORP Accuracy
±0.1% F.S. ± 1 digits
Temperature Range
0 to 100 °C
Temperature Resolution
1 °C
Temperature Accuracy
±1 °C ± 1 digit
Input Impedance
>1012 ohms
Temperature Compensation
Auto 0 to 100 °C
Recorder Output (pH)
0.0 ~ 14.0 pH
Recorder Output (mV)
0 to 1400 mV
Dual Point on/off Control
pH or ORP with internal select switch
Dead Band
±0.1 pH for each set point
Relay Output
8 A at 115 VAC, 4 A at 230 VAC
0.56 high efficiency red LED display
Power Source
115 VAC/230 VAC ±15%, 50/60 Hz
96 x 48 x 172 mm
690 g

Documentation and Supports