Type 8400 offers machine designers indication, monitoring, transmission and on/off control capabilities in one device. Available in compact and wall-mounted versions, the screw-in temperature sensor/switch has an extra-large, eight-character display and menu-guided device programming. Standard fittings are used to connect the unit to the process in the piping. Outputs available in the compact version include programmable transistor and relay plus process value. Outputs available in the wall version include NPN/PNP, 700 mA and 30 VCD max.