Fluid Level Sensor (2 Types)

For safety's sake: Fluid Level Sensors

No more messy checking of water and oil levels. The optical fluid level sensor uses an infra-red LED to provide constant monitoring of the angle of refraction in the fluid. If the fluid level drops too low, the infra-red beam is reflected onto a photo-transistor. The change in voltage in the transistor is measured and a signal is transmitted to the associated warning indicator light. Special units can be supplied for all types of connections.