Special Features:

5 in 1 professional measuring instrument: anemometer, air flow, hygrometer, thermometer, and light meter; tiny bone shape with lightweight and small size case design are suitable for handling with one hand; wristlet design provides extra protection to the instrument; especially for user one hand operation; low-friction ball bearing mounted wheel design provides high accuracy at high and low air velocity; display: 8 mm lcd; power supply: 006p dc 9v battery (heavy duty type); operating temperature: 0 to 50? C (32 to 122? F); power consumption: approx. Dc 6.2 ma; weight: 160g (battery included);

Properties:

A self-contained item which senses, measures, and indicates the speed of the wind and/or total air movement. Excludes transmitting devices.