This STC-1000 is a 220V temperature controller that can measure temperature. It has -50~99°C measuring range with +/- 1°C accuracy. It also features a °C display, -30~75°C storage temperature, 1.0m sensor length and 20%~85% relative humidity. It can measure temperature in domestic freezers, water tanks, aquariums, chicken incubators, laboratories and other temperature-controlled systems.