Electronic Temperature Controller


The Johnson Controls A421 Digital Temperature Controler with power can control a fridge or a heater. (Marked down from $155)

  • Features a backlit LCD
  • Temperature control range from -40 to 100C
  • Pre-wired for standard 120 VAC with dual power cords
  • 2 meter long temperature senser cable
  • Internal defrost settings
  • High and Low Temperature Stop Values determine whether the unit is heating or cooling.