add page main keywords



  1. Small size capacitive level switch
  2. liquids and Solids level detection ( high or low level)
  3. suitable for use in:
    • conductive liquids such as water, acids,…..
    • non-conductive liquids such as oil, fuel,….
    • solids such as feeds, seeds, corn,…..

Process condition:

  • Pressure: up to 10BAR
  • Temperature: 85 ~ 150oC


  • Housing: Stainless Steel
  • Probe: S.304 - S.S.310 - S.S.316 – PVC – PTFE


  • Thread: ≤1” NPT
  • Flange: ≥2”, ≥DN40
  • Tri-clamp: ≥1”, ≥DN25


  • Up to 50m


  • 1x Relay – PNP – NPN

Input Supply:

24/48/60 Vac/dc

SM973 is suitable for use with liquids and solids.

It’s a very accurate measuring device and the most common measuring technique available.

The sensor works with non-conductive liquids Example (oil, gasoline) and fine and coarse grained solids

download pdf