Starting at $508.00 Starting at $457.20
  • Usually ships in 3-4 weeks



  • Relay output
  • Corrosion resistant PPS body
  • 1" and 3/4" threaded mounting
  • Process Temperature -4 to 158°F (-20 to 70°C)
  • Ambient Temperature -4 to 158°F (-20 to 70°C)
  • Process Pressure (absolute) 72.5 psi (5 bar)
  • Maximum Viscosity 5000 cSt at 68°F (20°C)
  • Repeatability: ±2 mm (0.08")
  • Small in-tank dimensions
  • Compact sensor contained full plastic body
  • No moving parts


The GF Signet 2284 Ultrasonic Gap Switch consists of Polyphenylene Sulphide (PPS) and is high corrosion resistant in most liquids. The gap switch is designed for high or low level alarm in different tank applications as well as pump control. However, if there is a liquid present, the signal will be transmitted across the gap and the integral electronics will switch the output circuitry to signal the presence of a liquid.

It can be mounted in any position in a tank using a 3/4" or 1" thread available in BSP and NPT thread forms.

Applications for the 2284 include:

  • Cooling water
  • Demineralized water
  • Water/glycol solutions
  • Chemicals
  • Pump control


This product can be used in the following applications: