The Anderson 90mm IPS 100 - Indicating Pressure Switch is a gauge with two switches. This gauge offers user adjustable high and low setpoints and provides a separate solid state, ground closure switch for each. The solid state circuit requires an external 12-24 VDC supply, and each switch is capable of handling 1 amp maximum at 24 VDC. Switches will automatically reset themselves once the process variable clears the setpoint. An optional 115 or 230 VAC interface module will provide a SPDT (Form"C") electromechanical relay for each setpoint which will switch up to 6 amps. The switches are available on either Anderson's Standard Series, or Pharmaceutical Series 90mm gauges and do not affect the normal specifications.