The most cost-effective way to control the garage temperature is to find and and fix leaking air. Thermal leak detectors use infrared light to find temperature differences in the walls, doors, and windows. A big difference means the area is leaking. You can use insulation to fix the draft.
The best budget thermal leak detector is the Black & Decker TLD100. The best James Bond coolness thermal detector is the FLIR One. There’s one for Android and one for Apple phones.






Find and Fix Temperature Leaks
A thermal leak detector can show you what parts of your garage require insulation. Does your garage door allow in the heat or freezing air?
The Best Budget Detector
The advantage of the Black & Decker thermal leak detector is that it’s relatively cheap and still very useful. The Black & Decker gives you instant feedback on the wall where you are measuring. This means you don’t need to look at the target and back at the screen again It uses the baseline temperature, then it shines green for everything also in that range. A blue light means the target is cooler than the baseline. A red light means the target is warmer.
- Uses infrared sensors to measure surface temperatures. It performs within the ranges as specified for home repair use and should not be used to check the temperature of living beings
- Helps homeowners track down power-draining drafts
- Sold with a 5-step guide to fixing basic energy leaks and comes with the thermal leak detector
- Plugging leaks can save up to 20 percent on heating and cooling costs. Plastic housing with ergonomically formed grip for ease of use
The Coolest Thermal Imaging Camera
FLIR makes military imaging products which they are now selling to consumers. The FLIR One attaches to your phone using the USB port. There’s one for Apple and one for Android. It pinpoints temperature changes anywhere you point it. Artificial intelligence paints an outline of the target into the infrared colors so you know what you’re looking at later. “Later” is when you play back your session on your smart phone. The FLIR detects temperature differences in HVAC, circuit breaker panels walls, doors, and windows. This is the unit that HVAC professionals and electricians use at work.
- Lightweight accessory that transforms your Android device into a powerful thermal infrared camera
- Free FLIR ONE mobile app (recently updated) with exclusive content, real time professional tips and tricks, multiple spot meters, and easy automated reporting to document your findings user registration not required
- FLIR ONE allows you to measure temperature variances
- Capture and share thermal images and videos. Exclusive MSX Technology blends thermal and visible spectrum for more detail and enhanced resolution
- Spot Meter: Off / °C / °F. Resolution 0.1°C / 0.1°F
- Lightweight accessory that transforms your Android device into a powerful thermal infrared camera
- Free FLIR ONE mobile app (recently updated) with exclusive content, real time professional tips and tricks, multiple spot meters, and easy automated reporting to document your findings user registration not required
- FLIR ONE allows you to measure temperature variances
- Capture and share thermal images and videos. Exclusive MSX Technology blends thermal and visible spectrum for more detail and enhanced resolution
- Spot Meter: Off / °C / °F. Resolution 0.1°C / 0.1°F