Good quality and simple: start time, stop time, and timer; just plug in and select the heating or cooling system to make it work, no wiring required, accurate LCD readings. Temperature control range: 40–120°F. Operating temperature: 1°C. Reset temperature: 1°C. Operating structure: self-reset. Electric shock type: 1NC. Lead length: 1.8 meters. Product specifications: compliant with European regulations. Digital temperature controller compatible with 100–250V, 16A (max). Supports simultaneous connection of heating and cooling systems; heating and cooling functions can be set separately to control temperature during rapid changes. Temperature alarms: triggers when temperature exceeds set limits or sensor errors occur, eliminating the need for constant monitoring. Compressor delay protection included; temperature can be calibrated. Widely used device: enables precise room temperature control. Ideal for greenhouses, fish tanks, carbon crystal heaters, aquaculture, incubators, room temperature regulation, home use, and other applications. Note: Product color may vary slightly due to differences in monitor displays; please refer to the actual product received.