programmable controller 10 opto-coupler inputs 24V 8 relay outputs 5A Ethernet, IEX-2, 2x RS-232

Raspberry Pi 3B+ PiCAN2 controller watchdog timer RS485/M-bus serial driver 24-to-5V voltage regulator 1 pushbutton 2 digital inputs 2 relay outputs 8A

IEX-2 module, operator panel LCD display 2×20 characters, white/blue temperature sensor, humidity and light sensor IR receiver, beeper 1 temperature sensor input 1 switch/potentiometer input

thermostat with display and configurable buttons