WD-35613-22 pH 6+ Meter With Single-Junction, Sealed, Epoxy-Body Electrode, ATC Probe, Rubber Boot And Batteries. Reads pH, mV (for ORP / Redox measurements) and temperature. Features: Automatic Temperature Compensation (ATC); All push button operation; Three-point pH calibration and mV offset calibration; Auto buffer recognition; Hold function; Auto-off; Use with most pH and ORP electrodes with BNC connectors. Achieve professional results at an economical price! The microprocessor-based pH 6+ meter gives you high accuracy and reliability. Use this meter to take pH, mV and temperature measurements. The millivolt readout lets you take ORP readings. Meter includes a protective rubber boot that also acts as a meter stand.