Detachable: The thermometer is removable, making cleaning and recalibration easy. No battery required: This thermometer operates without batteries, offering cost savings and environmental benefits. It attaches securely to windows using an adhesive sticker. Highly sensitive bimetal mechanism: Features a transparent design with integrated, precision bimetal elements for accurate temperature monitoring. Practical mounting: Designed to be mounted on exterior windowpanes, allowing indoor reading of outdoor temperature for informed clothing choices. Waterproof: Built to withstand rain and adverse weather conditions. Durable construction: Dial made from 3mm-thick acrylic; sensor housing made from stainless steel for long-lasting performance. Usage instructions: Step 1: Remove the protective film from the double-sided adhesive tape. Step 2: Attach the thermometer to the outside surface of a window or door glass. Step 3: For minor calibration adjustments, rotate the dial left or right. If larger correction is needed, carefully remove the back cover to access the internal calibration screw. Note: Avoid direct sunlight exposure, as solar radiation may affect accuracy. For best results, install in shaded areas. Measuring range: -40°C to 50°C (-40°F to 120°F) Accuracy: ±2°C Net weight: 80.1 g (2.83 oz) Color: Transparent Materials: Acrylic + stainless steel Dimensions: 11 x 2 cm (4.33 x 0.78 in) Package includes: 1 x Window Thermometer Note: Color appearance may vary slightly due to lighting and screen settings. Slight dimensional variations of ±1–3 cm may occur due to manufacturing tolerances.