Relay 5Pin 12V/10A SONGLE
The Arduino Relay module allows a wide range of microcontroller such as Arduino, AVR, PIC, ARM with digital outputs to control larger loads and devices like AC or DC Motors, electromagnets, solenoids, and incandescent light bulbs.
W1209 Digital Temperature Control Switch is a programmable themrostat. The same module can be used in both controlling / maintaining Cold and Hot temperatures. Parameter 0 can be set to either Hot or Cold Control setting. The relay module is based on a microcontroller (MCU) and has 7 user configurable parameters accessible using 3 push button