Features: The digital temperature controller is two stage temperature controller designed for precises management of both heating and cooling systems, offering seamlesses switching between Celsius and Fahrenheits to suit your preferences. Featuring user friendly operation, this controller allows you to set temperature values and difference values with ease, ensuring accurate control within a range of -58~210°F(-50~99°C) with a resolution of 0.1°F/°C. Ideal for cold storage managers, restaurateurs, and professionals requiring precises temperature control, the digital temperature controller caters to a wide array of users seeking reliability in temperature regulation. Perfect for commercial refrigerators, food storage facilities, and laboratories, this temperature controller ensures stable operation across various refrigeration environments, safeguarding your equipment and stored goods. With builts in features like temperature calibration, output delay protection, and alarm notifications for sensor errors or temperature limits, the digital temperature controller offer peace and dependable performances in demanding settings. Specifications: Component: Plastic+Metal Temperature Measurement Range:- 19-99℃ Temperature Control Range: -19-99 ℃ Temperature Control Accuracy: 1 ℃ Measurement Input: NTC10K Waterproof Probe L=1 Meter Refreshing Rate: 4Times/Second Usage Environment: -30-60℃, Humidity 20% -80% Input Voltage: 12V/24V/220V Output Type: Relayed Output Max 10A Other Functions: Power-off Memory, State Memory, Temperature Correction, Delayed Start Appearance Size: Approx. 3.03x2.44x1.34inch(7.7x6.2x3.45cm) Opening Hole Size: Approx. 2.8x1.14inch(7.1x2.9cm) Package Includes: 1x Digital Temperature Controller note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.