VSM100 Mini Bee™ Vacuum Pressure Switch



VSM100 Min Bee is InstruTech’s vacuum switch based on the capacitance diaphragm pressure measurement principal and offered in two different configurations. The VSM100A is an absolute pressure vacuum switch and the VSM100D is a differential pressure vacuum switch (relative to atmosphere).

VSM100 is available with NW16KF and 4VCR fittings.


  • Absolute setpoint range from 20 to 970 Torr
  • Differential setpoint range from -99 to + 46 Torr
  • Setpoint accuracy of 0.5% F.S.
  • Gas type independent pressure detection
  • No maintenance required in clean applications
  • Robust corrosion resistant design
  • CE and RoHS compliant
  • Standard warranty of 2 years