High temperature alarm: When the temperature reaches the set point, the controller will trigger an alarm. Temperature calibration: Allows user to calibrate the temperature as needed. W3230 controller: Automatically starts cooling or heating to maintain a constant temperature. Temperature controller: Set upper and lower limits to prevent accidents. LCD digital thermostat: Supports selection of cooling or heating mode. Features: - Selectable cooling or heating working mode. - Set upper and lower temperature limits to prevent accidents. - Automatically starts cooling or heating for constant temperature control. - Temperature calibration function allows adjustment as needed. - High temperature alarm activates when measured temperature reaches the set value. Specifications: - Temperature range: -55°C to 120°C - Control temperature accuracy: 0.1°C - Display color: Red and blue - Supply voltage: 12V - Data backup: Yes - Relay: 20A - Dimensions: 79 x 43 x 26mm - Panel cutout size: 74 x 39mm Note: - Color may vary slightly due to differences in screen resolution. - Slight size variations may occur due to manual measurement. Please allow 1-3cm tolerance. - Product appearance may vary slightly due to lighting and display differences. Actual product takes precedence. Package Includes: 1 x Digital Temperature Controller 1 x Temperature Sensor