Extech PH210  

PH210: Compact pH/ORP/Temperature Meter

Measures pH, ORP and Temperature (with ATC)

The PH210 is a pH/ORP/Temperature Meter that displays pH or mV and Temperature simultaneously. It uses a pH or ORP electrode with standard BNC connector and has ATC to improve accuracy when used with optional Temperature Probe. Electrodes are sold separately. Complete with 9V battery and soft case.