Inkbird Dual Stage DV 12V Digital Temperature Controller Fahrenheit Thermostat Heating and Cooling for Homebrewing Brew Fermenter Fridge Incubator Greenhouse

2 Relay Outputs: Set the target temperature and the return differential temperature to maintain a specific temperature range

Mode: Automatically switch between cooling and heating modes

Calibration and protection: Temperature accuracy calibrating; Optional refrigerating control output delay

Alarms: When the temperature exceeds the preset high or low temperatures, or the sensor is in error it will alarm

It can be used for water cooling devices, cooling fans, a car's 12 V battery, a 12-volt chest cooler, and heaters, etc

Display: Fahrenheit or Celsius reading is switchable