Specifications: Rated Voltage: AC 100-250V 50/60Hz Current Load: 16A Accuracy: ±1℃ / ±33.8℉ Temperature Range: 5-45℃ Power Consumption: Less than 2W Timing Error: Less than 1% Shell Material: PC (Flame Retardant) Sensors: Built in sensor for measuring room temperature and external sensor for high temperature protection Installation Distance: 60mm Buttons: Contact Buttons Item Size: 86 x 86 x 40mm / 3.4 x 3.4 x 1.6in Item Weight: 336g / 11.84oz Color: Black Material: Acrylic Package Contents: 2 x Thermostat Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.