1. Built-in high precision chip for high sensitivity and accurate temperature control.2. Support °C/°F temperature display.3. When the thermocouple signal is inputted, the resolution of the digital display can reach 0.1 °C/0.1 °F.4. Integrating relay and SSR, users can freely use relay output or SSR output.5. Short shell design, only 85mm deep, easy to carry and install.6. Rugged fireproof, waterproof, dustproof and shockproof housing. Specification:Model: MC401Control Type: TemperatureControl Mode: PID Control & Self-Tuning ControlPower Consumption: lt; 10VAmaching Point: TemperatureTemperature Range: -199 - 1300°cTemperature Measurement Error: ± 1°cMeasuring Accuracy: ± 0.5%FSowing Voltage: 85 - 265VSoutput Output: Relay/SSR OutputDisplay: °f or °cInput: Universal Input (K, E, J, N, S, T, R, B, Pt100, etc., can be changed by yourself)Minimum Resolution: 0.1°c/0.1°fMounting Type: Built-in PanelMounting Size: 45*92mm/1.8*3.6inDimensions: 48*96*85mm/1.9*3.6*3.3inWeight: approx. 196g Package List:1*PIDU Digital Temperature ControllerWeight:1. Due to the difference between monitors and lighting effects, the pictures may not reflect the actual color of the item.2. Please allow slight error due to manual measurement. Thank you for your understanding.