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: REX-CH102 FK02-MV*AB Control Type: Temperature Control Mode: Intelligent Temperature Control Regulator Temperature Range: 0~400 Degree Celsius Installation Type: Buckle Working Voltage: 48~240 (V) Material: ABS Working Voltage: 48V-240V AC 50Hz/60Hz 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) Synchronous Dual Output Alarm Mode: (Upper Limit) (Lower Limit) Double Alarm Features: with Digital Display, Intelligent, Durable Panel Size: 4.8cm x 4.8cm/1.89" x 1.89", Opening Hole Size: 4.6cm x 4.6cm/1.81" x 1.81" (Approx.) Size: 4.8cm x 4.8cm x 7.8cm/1.89" x 1.89" x 3.07" (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 2 x Fixing Buckle 1 x Chinese User Manual 1 x English User Manual Note: 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.