The EchoSwitch LU series ultrasonic liquid level sensors provide continuous level measurement up to 26.2 feet; three programmable relays provide level switch or level control functions and a 4-20 mA ...

Condensation is the most commonly encountered variable in liquid level applications and attenuates the acoustic signal of non-reflective ultrasonic sensors, weakening signal strength and reducing ...

LEDs on the Arduino can be programmed to indicate if the sensor is or isn’t immersed by the liquid to determine liquid levels. The devices are compact, allowing them to be deployed within constrained ...