K-TEK Corp manufactures Vibrating Loop Powered Liquid Level Switch, Vector VF30. K-TEK Corp is an ISO 9001:2000 certified company. The Vibrating Loop Powered Liquid Level Switch is used in direct replacement for Ultrasonic Gap or RF Capacitance Switches. It gives resistance to coating or build-up on sensor. It does not require any calibration. This Vibrating Loop Powered Liquid Level Switch also ensures any mounting 3/4 inches NPT or Larger.