SAMSAN pH Checker Series
Low cost, pocket size simulators for pH 4.00, 7.00 and 10.00 These checker are easy to use and provide a quick way for checking the performance of any pH instruments. Press “HI Ohm” high impedance mode to simulate an Electrode. Compact case features push button range selector switch for one hand operation. Bright red LED indicate simulation range or when battery power falls below a specific level.