Profile: Temperature & Process Instruments, Inc. is a supplier of sensors, calibration, and process products. Our products include portable temperature calibrators, portable combustion analyzers, portable indoor air quality meters, dry block temperature calibrators, thermocouple/RTD transmitters, and pressure calibration instrumentation. BetaGauge 330 is a revolution in pressure calibration technology for the process industries. With the BetaGauge 330, technicians have a small, lightweight calibrator that generates from high vacuum to 300 PSI using a high performance integral electric pump.