Specifications:It has digital display, which is clear and easy to read.Removable housing is convenient for installation.With PID temperature controller, it is much more precise and accurate.High-quality composite silver alloy contact relay offers uniform specifications and stable output. Item Name: Temperature ControllerModel: REX-C900FK02-8 AN RELAYControl Type: TemperatureControl Mode: Intelligent Temperature Control RegulatorTemperature Range: 0-1372 Degree CelsiusThe Factory Setting Value is 400 Degree Celsius (The Highest Adjustable Is 1372 Degree Celsius)Installation Type: Fixing BracketMaterial: ABSWorking Voltage: 220V AC 50Hz/60HzOutput Signal: 4-20mATemperature Control Accuracy: 1.0Control Method: PID Control and Self-tuning ControlWorking Environment: 0-50 Degree Celsius Relative Humidity: 30%-85%RHInput Mode: K/E/J/R/S/B/N/T/PT100/CU500 AdjustableFeatures: with Digital Display, Intelligent, DurablePanel Size: 9.6cm x 9.6cm/3.78" x 3.78", Opening Hole Size: 9.2cm x 9.2cm/3.62" x 3.62" (Approx.)Size: 9.6cm x 9.6cm x 11.2cm/3.78" x 3.78" x 4.41" (Approx.) Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement. Package Includes:1 x Temperature Controller2 x Fixing Bracket1 x Chinese User Manual1 x English User Manual