Features: The outer casing is made of aluminum alloy, compact size, strong and durable Mechanical thermometer, no battery required With and fine and clear dial scale, easy to read Indoor and outdoor mini round aluminum alloy thermometer Suitable for car, houses, offices, workshops, schools, shopping malls, warehouses etc Specifications: Measuring range: -30~60C, accuracy: +/-2C Product size: diameter 58mm * thickness 14mm Product packaging: small white box packaging Product accessories: The product comes with a 31mm diameter double-sided sticker (dip cotton double-sided sticker), and the product is pasted in the required position. Package include: 1 x Thermometer Note1: Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Please allow 1-3mm slight deviation due to manual measurement. Thank you Note2: Transition: 1cm=10mm=0.39inch Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you