Multispan TC-49-A2-N2-R Temperature Controller supports Pt-100 input, Relay or SSR output, PID control, and RS-485 communication. The TC-49-A2-N2-R Multispan Temperature Controller belongs to the Multispan Temperature Controller category and TC Series, featuring PID Auto-Tuning, IP65 front protection, Relay or SSR output, and RS-485 Modbus communication with 100-270V AC auxiliary supply.