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. Item Name: Temperature Controller Model: CHB402 F K02-MV*AN RELAY SSR Control Type: Temperature Control Mode: Intelligent Temperature Control Regulator Temperature Range: 0~400 Degree Celsius Material: ABS Installation Type: Fixed Bracket Working Voltage: 180~220 (V) Working Voltage: 180V-220VAC 50Hz Temperature Control Accuracy: 1.0 Control Method: PID Control and Self-tuning Control Working Environment; 0~50 Degree Celsius Relative Humidity: 30%85%RH Input Mode: K/E/J/R/S/B/N/T/PT100/CU500 Adjustable Output Mode: Relay (RELAY) Solid State Relay (SSR) Features: with Digital Display, Intelligent, Durable Opening Hole Size: 4.6cm x 9.2cm/1.81" x 3.62", Panel Size: 4.8cm x 9.6cm/1.89" x 3.78" (Approx.) Size: 4.8cm x 9.6cm x 8.1cm/1.89" x 3.78" x 3.19" (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 Controller CHB402 2 x Fixing Bracket 1 x Chinese User Manual 1 x English User Manual