The MKS HPS® Series 901P Plus Transducer has a combined sensor output that measures from 1x10^-5 to 1,000 Torr for monitoring pump-down cycles. This unique patented transducer is designed specifically for the loadlock environment, the 901 Plus (901P) replaces up to three sensors in one compact package. The 901P provides both pressure measurement and atmospheric switching capabilities, by integrating the MicroPirani™ and piezo sensor technologies. The differential sensor ensures accurate atmospheric pressure sensing under varying barometric pressure conditions, for optimum loadlock performance. Customers requiring both a power supply and display can use the 901P with the PDR900 Series Controller sold on this website. For complete specs and operation information See AVAILABLE DOWNLOADS below.