Features: Easy to read the meter. Low cost and compact size. Low power consumption, long life time. Easy installation, LCD display, fashionable appearance. Specifications: Material: Plastic Color: Silver Powered By: 1 * AG10 Battery (not included). Temperature Measure Range: -20 to +110 ? Error range: ±1? Suction Cup Diameter: 3cm / 1.2in Product size: 9.0 * 2.8 * 2.2cm / 3.5 * 1.1 * 0.9in Product weight: 24g / 0.8oz Package dimensions: 10.0 * 3.5 * 2.0cm / 3.9 * 1.4 * 0.8in Package weight: 28g / 1.0oz Package List: 1 * Digital Display Thermometer Note: When you intend to install the item on the mirror, you had better clean the glass and dip the suction cup with a little water, then paste it on the mirror in case of it fal