With a Johnson A421 temperature controller, you can convert any freezer into a kegerator or lager box! Just plug the freezer into the outlet cord, place the gas-filled sensor in the area to be controlled and program the temperature. This manual thermostat simply turns off the freezer when it reaches the specified temperature. Other features include lockable touchpad temperature adjustment, a 6-foot power cord and a 6-foot outlet cord.
This model replaces the A419 Model.