The UPS II loop calibrator is a high quality, handheld, pocket-sized process instrument. The GE Druck UPS-II loop calibrator can power (24 VDC) and simulating 2-wire transmitters and stroking valves. The Druck UPS III loop calibrator’s small size, easy-to-read display, and simple-to-use time saving features make it an essential tool for loop calibration and troubleshooting, instrument maintenance, and valve set-up. The UPS III ships with a protective rubber boot.