Waterproof Window Thermometer & Humidity Meter

Monitor outdoor conditions at a glance

with this waterproof window thermometer and humidity meter. Designed for clear, everyday visibility, it shows current outdoor temperature and humidity so you can decide what to wear, when to water plants, or how to manage indoor comfort without stepping outside.

The circular dial features a clear acrylic face, stainless steel cover, and an aluminum pointer for smooth, accurate indication. A high-sensitivity bimetallic element inside responds quickly to temperature changes, displaying readings in both Celsius (°C) and Fahrenheit (°F). The temperature range runs from approximately -40°C to 50°C / -40°F to 120°F with a typical accuracy of ±2°C, making it suitable for year-round use in most climates. The dial measures about 11 cm (4.33") in outer diameter with an inner dial diameter of around 3.2 cm (1.26"), and a pointer length of about 5.7 cm (2.24"), giving you a clear, easy-to-read scale from indoors.

Installation is straightforward: clean the outside glass of your window or door, peel off the protective films from the self-adhesive backing, and press the thermometer onto the exterior surface from inside using a backhand motion. Once attached, you can read the outdoor temperature and humidity from the comfort of your home. The waterproof design and battery-free operation mean it functions reliably in rain, frost, and sun without maintenance or power. For cleaning, the unit can be detached from its plastic fastener so you can wipe the dial and then clip it back into place.

Why It's a Smart Choice

• Dual-scale display in °C and °F plus humidity indication for a fuller picture of outdoor conditions.
• Battery-free, bimetallic mechanism for dependable readings in a wide temperature range.
• Self-adhesive, waterproof window mount for easy installation, viewing, and cleaning from indoors.

FAQ

Q: Does it require batteries to operate?
A: No. The thermometer uses a mechanical bimetallic element, so it works without any batteries or external power.

Q: Can it stay outside in rain and cold weather?
A: Yes. The construction is designed to resist rain and typical outdoor conditions, including low temperatures within the stated range.

Q: How do I install it on my window?
A: Clean the outside glass, remove the protective films from the adhesive, then press the thermometer onto the exterior side of the glass from inside. Once the adhesive is set, you can read the dial from indoors.

Q: Can I remove it for cleaning?
A: Yes. The unit is attached to a plastic fastener system. You can pull the thermometer out of the fastener, clean the dial, and then clip it back into place.