Theory:Temperature RecorderModel Number:lcd meterUsage:carFeatures:Easy to read the meter.Low cost and compact size.Low power consumption， long life time.Easy installation， LCD display， fashionable appearance.Specifications:Material: PlasticColor: SilverPowered By: 1 * AG10 Battery (not included).Temperature Measure Range: -20 to +110 ?Error range: ±1?Suction Cup Diameter: 3cm / 1.2inProduct size: 9.0 * 2.8 * 2.2cm / 3.5 * 1.1 * 0.9inProduct weight: 24g / 0.8ozPackage dimensions: 10.0 * 3.5 * 2.0cm / 3.9 * 1.4 * 0.8inPackage weight: 28g / 1.0ozPackage List:1 * Digital Display ThermometerNote: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