Review on 🌡️ Supco TA2 Single Temperature Degrees: Efficient Measurement Tool for Accurate Readings by Derek Helvie

Plugs into a 120 volt outlet. Plug the temperature probe into your freezer/fridge and you're done. The alarm is louder than I thought. Beep-beep-beep-beep. The sound will continue until you turn it off. There is a temperature control and an alarm delay of 1 hour. If the door is opened during loading or unloading, the temperature will rise and an alarm will go off. The one hour delay prevents the tone from playing until the cool box has cooled down.