Ultrasonic sensors measure the distance between a target and the sensor using high-frequency sound waves that are inaudible to humans. The process is simple: the sensor emits ultrasonic waves, which ...

AutomationDirect has added the Flowline EchoTouch, EchoSpan, and EchoSwitch lines of ultrasonic liquid level sensors and transmitters, as well as the PodView digital level indicator to their product ...

DUBLIN, IRELAND--(Marketwired - Jul 30, 2014) - Research and Markets (http://www.researchandmarkets.com/research/q8hpvc/level_sensors) has announced the addition of ...

The U3M ultrasonic "Mini Probe" level sensor has a 4 to 6-in. operating range and extends 2 in. above the tank or drum surface. The device's PVC housing allows for a 40 to 60°C operating temperature ...

Ultrasonics refers to signals that are above the human hearing span (>20 kHz), and usually in the 40- to 70-kHz range. These signals are used like radar—they’re radiated toward a target and reflected ...