Piece W3230 AC 110V-220V Digital Temperature Controller, 20A Digital Display Thermostat Control Switch with 10K NTC Sensor Probe

【Wide Application】It is applicable to all types of seafood processing machines, HVAC compressors, freezers, refrigerators, air conditioners, fermentation rooms, water chillers, and other equipment requiring automatic switching between refrigeration and heating.【Good Practicality】You can choose between cooling and heating modes. This temperature controller maintains your environment within the desired temperature range. Temperature control range: -50-110°C. Control accuracy is 0.1°C. Input power supply: AC 110-220V.【Safe to Use】You can set the maximum/minimum temperature to prevent accidents. High temperature alarm: when the measured temperature reaches the set temperature, the controller will sound an alarm.【Easy to Use】The thermostat sensor switch automatically activates cooling or heating to maintain a constant temperature. A comfortable and convenient experience. 1. Check if the temperature sensor is missing or damaged. 2. High-temperature protection in heating mode. Low-temperature protection in cooling mode. The relay is automatically disconnected in protection mode. Key operation: the thermostat panel has three keys: + key, - key, and SET key.