FLIR ONE is a lightweight accessory that transforms your iPhone 5 or 5s into a powerful thermal infrared camera. FLIR ONE displays live thermal infrared imagery using the FLIR ONE iPhone app so you can see the world from a thermal perspective. FLIR ONE works by detecting heat energy, giving you the ability to "see" and measure minute temperature variances. Now you can detect energy leaks, hidden moisture and other problems around your home. FLIR ONE also enables you to see in complete darkness so you can detect intruders and observe wildlife at night.