Features: Thermostat provides single heating contact output or single cooling contact output. Measures room temperature via sensor and compares it with the set temperature to control the on/off state of the output contact, with a switching differential of 0.5. Equipped with a large LCD screen for clear visibility, even in low light conditions. This digital thermostat offers high sensitivity and high accuracy. Sleek design and easy to operate. Specifications: Power: 2 x AA alkaline batteries (not included) Display accuracy: 0.5 or 1F Sensor type: NTC (10k) 1% Contact capacity: 5A Operating temperature range: 050C / 32122F Temperature control range: 535C / 4195F Temperature display range: 040C / 3299F Output type: Relay switch Insulation condition: Normal indoor environment Programming cycle: Weekly programmable Installation: Wall-mounted or battery-powered placement Dimensions: 8.5 x 8.5 cm / 3.35 x 3.35 in Weight: 165g Package included: 1 x Temperature Controller (batteries not included) 1 x User Manual 2 x Screws Note: Please note that new and old versions of this product may be shipped randomly. Ensure you are comfortable with this before placing your order.