Tomtech - Model PHM2 - PH Monitor Sensors Datasheet

The PHM2 pH monitor is a rugged unit designed to provide signal conditioning and calibration for a pH electrode. It has analogue pH signal and relay outputs. The monitor is housed in a waterproof polycarbonate enclosure with clear hinged lid which with the lid closed meets the requirements of IP54. The pH input is fully isolated from the outputs for reliable pH measurement eliminating problems with interaction with other equipment. High and low thresholds may be set to operate the output relay which may be used as an alarm or for control purposes. All electrical connections are via screw terminals, the electrode connects via a BNC plug.