1.The shell adopts a 35mm guide rail casing, which is easy to install and suitable for . 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 various occasions such as laboratories, food industry, manufacturing industry, breeding farms, hot water engineering, medical equipment, etc. Working voltage: DC8-24V 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, Specified color is not accepted.but not affect use Specification:D: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.