Features: Heating: home heating, fish puppy breeding, greenhouse planting, hatching machine, etc. Cooling: refrigerators, grocery store preservation, air conditioning, etc. Smart: WiFi connection, remote control by means of means of clever cellphone or tablet computer. Safety: The ABS flame-retardant materials shell has passed a number of safety tests, making it safer and more reliable. Constant temperature mode: 2 outputs (can be related to refrigeration kit and heating equipment at the same time). Can appreciate operating mode Specifications: Name: Smart WiFi temperature controller Model: DTC-2201 Power delivery voltage: AC110~230V Temperature range: -40℃~+99℃ Measurement accuracy: ±1C (-40℃~+70C) Sensing line length: 100cm Temperature control size: 93x56x34mm Output capacity: 10A~250VAC Product weight: 91g Sensor :NTC Sensor (Accuracy: ±0) Package included: 1 x DTC-1201 WIFI Thermostat 1 x NTC Sensor 1 x User Manual