The electrolyte monitoring sensor (EMS) is the smartest, safest and most accurate way to know when your batteries need water. The technologically advanced i-Lite Sensor improves battery maintenance by alerting operators with the brightest LED visual indication of battery electrolyte level.
Multiple precut probe lengths available
Drill Bit
1/2" (13 mm)
1/2" (13 mm)
The depth stop ensures that the battery isn't damaged by drilling too deep.