The Hanna Instruments HI 8427 pH and mV Precision Simulator with HI 7858/1 BNC/BNC coaxial cable is designed
specifically to simulate pH and ORP electrodes to confirm proper functioning of your meter. Standard pH electrode
ranges are selectable with a dial on the front panel.
Provided with a universal BNC connector, this unit is also a high impedance tester, for cable and connector
inspection with a leakage sensitivity of 109 ohm. This unique tester is a "one of a kind" in the industry
that eliminates the need for very expensive MΩ meters.