Practical The transparent temperature monitoring meter can be mount to windowpane outdoor, you can reading the outdoor temperature in the room. you can know the outdoor temperature clearly at home and change your cloth according to the showing data, avoiding catching cold. Waterproof The transparent temperature monitoring meter has good waterproof function, which is not afraid of the bad weather. No battery requirement The transparent temperature monitoring meter owns built-in highly sensitive precision bimetals to sense the temperature change. Without battery requirement, the thermometer is economic, eco-friendly and can be easily installed on the window by sticker. Durable The thermometer adopts 3mm thickne acrylic as dial and stainle steel as chip shell, which is durable and wear resistant. Detachable The thermometer is detachable, which is convenient to clean and recalibrate the recalibrating. Scope of application The temperature monitoring meter is practical in winter, when the indoor and outdoor temperature difference is large. It is durable enough to install on your outside transparent window or door side. Usage: Clean the outside of the gla window or door. Remove the sticker free paper in the unit center. Put the thermometer on the gla outside the window or door backhand. If you need to cleaning or recalibrating the thermometer, the main body of the thermometer can be removed from the plastic claw on the gla. Specification: Type: transparent temperature monitoring meter Quantity: 1pc Material: acrylic + stainle steel Color: transparent Measuring rang: -40 to 50 Celsiu Accuracy: +/- 2 Celsiu Size: 10.7*2.4cm/ 4.21*0.94inch(D*H) Net weight:80.1g/2.83oz Package: 1* transparent temperature monitoring meter