1. Adopt the latest PID algorithm, fast self-tuning, no overshoot, accurate temperature control 2. The welding shape is resistant to falling and stable 3. Fahrenheit and Celsius can be set freely 4. Relay output 5. Suitable for various occasions that require temperature measurement and temperature control, such as bathrooms, greenhouse vegetables, hatcheries, etc. ----------------------- Product type: thermostat Brand: BERM Model: CHB401 Working voltage: AC180-240 (V) 50Hz Control type: temperature Control method: intelligent temperature control regulator Temperature range: 0-400 Input signal: K-type thermocouple Output: relay Temperature measurement error: 1 () Accuracy level: 0.5 Working environment: 0-50 Environmental humidity: 35-85% Hole opening size: about 45 x 45 mm / 1.8 x 1.8 inches Installation type: embedded Size: about 48 x 48 x 86 mm / 1.9 x 1.9 x 3.4 inches ----------------------- 1 x thermostat 1 x Chinese user manual 1 x English user manual