Drexelbrook > Ultrasonic Gap Switch 

The Drexelbrook VeriGAP™ ultrasonic gap switch provides high- and low-level measurement in a wide variety of liquids. The versatile VeriGAP switch offers relay or loop outputs, integral or remote-mount electronics, and AutoVerify™ and Certify™ test features. With no moving parts to break or wear out, this low maintenance switch can handle applications to 350°F at 1000 psi. Output is unaffected by changes in material density, viscosity, pressure or electrical properties, and an optional, adjustable version is available which allows the user to change control point without changing the unit and without calibration.