Key benefits Read outside temperature from indoors: shows accurate outdoor readings without opening windows or doors. Weatherproof and reliable: rainproof construction ensures performance in harsh conditions. Simple to install and maintain: attaches with included double-sided tape and can be removed for cleaning. What it does Measures outside temperature quickly and displays it inside the room so you can decide on clothing, heating, ventilation, or outdoor plans without stepping outside. Important features and specifications Function: outside temperature gauge readable from inside through a window or door. Compatibility: designed to adhere to the inside surface (backhand) of window glass or door windows. Mounting: sticks to glass using the supplied double-sided adhesive tape. Removable housing: the item is held in a plastic closure that allows you to pull the product out for cleaning or repositioning. Performance: temperature measurement range -40 to 50 °C with an accuracy of +/- 2 °C. Weather resistance: rainproof construction keeps the unit unaffected by harsh environmental conditions. How to install 1. Clean the window or door pane with a cloth to remove dust and grease. 2. Peel the protective backing off the double-sided tape. 3. Firmly press the product onto the backhand of the window glass or door window, making sure the adhesive is straight. 4. Close the window or door; read the outside temperature from inside the room. How to clean and maintain The unit sits in a plastic closure secured by the double-sided tape. Pull the product out of this plastic housing to access the dial. Wipe dust from the thermometer dial, then place the unit back into the plastic closure and reattach to the glass. Use scenarios Apartment living: check outdoor temperature from inside before heading out so you can choose the right outerwear. Child or infant rooms: monitor outdoor conditions without opening windows frequently, helping maintain stable indoor environments. Gardening and pet care: quickly verify if outdoor conditions are suitable for plants, seedlings, or outdoor pets. What makes this product practical Provides outdoor temperature readings without exposure to weather or needing external wiring. Easy, tool-free installation and simple cleaning process. Broad temperature range and dependable accuracy for everyday home use.