Best Water Level Sensor

Heavy-Duty Multi-use Water Level Sensor (Standard Fit)
A versatile maintenance component for cooling systems, this sensor provides a precise signal to the control board for automated water management. Its simple design makes it an ideal "stock item" for maintenance teams who service multiple brands of cooling units.

Industrial Grade Keruilai Water Level Sensor
This robust water level sensor is the standard component for Keruilai industrial evaporative coolers.