1.The shell adopts a 35mm guide rail casing, which is easy to install and suitable for fields. 2.High precision, efficient and stable performance, thermistor temperature probe. 3.Accurate temperature control, customizable temperature control range, refrigeration mode, and heating mode. 4.Strong anti-interference, stable and reliable, with anti-interference ability and data stability. 5.Wide application range: suitable for occasions such as laboratories, food industry, manufacturing industry, breeding farms, hot water engineering, medical equipment, etc. Working voltage: AC220V Measurement range: 50--19.9-99.9-120°C (decimal point automatically shifted) Control range: -19.9-120°C Measurement accuracy: 0.5%±1 Usage environment: -10-50℃ (relative humidity below 80%) LED color and printed words from batch to batch, but not affect use Specification:A:Wire Ear Probe Colour:As Shown Material:ABS Package Contents: 1 x LED Rail Thermostat Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.