Check the listing for details. MKS 971B-21020-0014 UniMag™ Cold Cathode Vacuum Pressure Transducer. Condition: New – Open box. Listed at 249.99 USD. This is brand new, never used or installed. If there are any problems with this unit, please don't hesitate to send us a message so we can remedy the situation with a return/refund. We want to provide our customers with the best service and parts. We buy our inventory from local precision manufacturers within the semiconductor community to ensure quality and OEM performance standards. For custom quantities, please send us a message inquiry and we can get you a quote. If there are any issues with your order, please reach out and we will be glad to help. The 971B UniMag™ vacuum transducer offers a measurement range from 1x10-8 Torr to 5x10-3 Torr and is based on cold cathode inverted magnetron sensor technology. The 971B is a cost effective solution for base pressure measurement and control. In addition to its small size, broad range and lower cost, the 971 UniMag™ Cold Cathode Inverted Magnetron Transducer Vacuum Gauge can be operated via digital communication or as an autonomous analog unit. Series 970B transducers have standard 15 pin HD Sub-D connectors.Absolute measurement range from 1x10-8 to 0.005 TorrThe cold cathode anode module design is user serviceable to decrease downtimeEase of operation via analog output, RS232, or RS485Optional integrated touch-screen display available for local pressure indicationThree user configurable relays for process controlSmall footprint design provides a compact transducer solution SpecificationsAbsolute Measurement Range1 x 10-8 Torr to 5 x 10-3 TorrDigital CommunicationRS485 or RS232TypeVacuum TransducerSensorCold CathodeDisplayTouch-screen (optional)Seal MaterialVitonEnclosureStandard or IP56Electrical Connector15-pin, High Density, D-sub maleRelays0 or 3Installation OrientationAnySet Point Range1 x 10-8 Torr to 5 x 10-3 TorrCalibration GasNitrogenOperating Temperature0-40°C (32-104°F)Maximum Bakeout Temperature85°C (185°F), non-operatingDigital ControlsPressure units, baud rate, address, factory default, user tag, RS485 test, gas correction; set point functions: value, hysteresis, direction, HV enable, protect, control set point, gas typeDigital StatusPressure reading and units, set point, transducer temperature, user tag, model, device type, serial number, firmware and hardware versionsAnalog Output0.5 VDC per decadeRelay Contact Rating1 A @ 30VAC/DC, resistivePower Requirements9-30 VDC, 2 WAccuracy5 x 10-8 Torr to 10-3 ± 30% of readingRepeatability5 x 10-8 Torr to 10-3 ± 30% of readingOverpressure Limit1500 TorrInternal Volume21 ccExposed Materials304 and 403 stainless steel, Viton®, Cu-Ni and Ag-Cu alloy, ceramic, titaniumElectronic Casing and Flange304 stainless steelWeight12.7 oz (360 g)Compliance CE