Vktech&reg; -50-110&deg;C W1209 12V Digital Thermostat Temperature Control Switch Sensor Module Temperature range -50-110 Dimensions: 48.5 * 40mm Temperature control mode: ON / OFF Resolution When temperature is 0.1, the resolution is -9.9~99.9, other temperature segment is 1 Environmental requirements: -10 ~ 60  Humidity 20%-85%