Extech PH220 C pH Meter/Palm with Cabled Electrode

For single and 3-phase/3-wire or 3-phase/4-wire systems Datalog up to 52,428 single phase readings or 17,476 3-phase readings Large backlighting LCD displays up to 35 parameters in one screen Simultaneous display of Harmonics and Waveform Current Probes sold separately, Weight: 0.5952481074 pounds, Manufacturer: Extech