Rochester S291 Capacitance Type Coolant Level Sensor

The S291 is an active device designed to give an alarm signal if liquid falls below, or rises above, a preset level.

 

It can be specified with a delay to eliminate false alarms due to turbulence.

 

Containing a factory programmable microprocessor, the switch provides a complimentary (flip/flop) voltage output on two pins.

 

Its small footprint with limited intrusion into the tank means a reduced risk of damage and a wide range of customer specifiable options make it suitable for most applications.