Burkert’s Type 8400 screw-in temperature sensor/switch offers indication, monitoring, transmission, and on/off control capabilities in one device. Available in compact and wall-mounted versions, the unit features an extra-large, eight-character display and menu-guided device programming. Standard fittings are used to connect the unit to the process piping. Outputs include programmable transistor and relay plus process value (four to 20 mA). Outputs available in the wall version include NPN/PNP, 700 mA, and 30 VDC max. Input external setpoint (compact version) is four to 20 mA. Measuring range is -40 F to 257 F (ambient temperature between 32 F and 104 F) and -40 F to 194 F (ambient temperature above 104 F). Wall version range is -40 F to 257 F. Maximum medium temperature is 257 F, with maximum fluid pressure of 230 PSI. Switching accuracy is +/- 0.5 F (32 F to 176 F); +/- 1.5 F (outside 32 F to 176 F). Repeatability is 0.4%. The unit’s housing is constructed of PC and fiberglass, while wetted parts are made of stainless steel (sensor element) and FPM (seal).