FireFly Camo Electronic Wind Detector -
Play the wind, avoid detection and increase your chance of success with the Firefly Electronic Wind Detector. Compact and ultralightweight, this waterproof wind detector provides accurate wind and thermal direction drifts down to 1" per second. It records 512 readings per second, and then reports the results with its easy-to-read, flashing LED lights. Integrated compass. Runs on three AAA batteries (not included).
Operating temperature: -35°F to +110°F.
Dimensions: 4"H x 1.8" radius.
Weight: 3 oz.