Maxwell DR02B is a din rail mount PID temperature controller, 2 channel configuraitons, support thermocouple inputs(K,E,J,N,W,S,T,R,B), and output can be Relay, SSR Drive, it's a very simple din rail mount ccontroller, PID or ON/OFF control mode, RS-485 modbus communication as standard features, 85~265Vac source for easy system intergration, auto-tuning for both loops and with an external plug and play external configruation devices. the field configuration will be very easy to carry out.