general tools daf800 mini digital airflow meter

General's DAF800 Mini Digital Airflow Meter measures airflow in ducts, at grille returns and helps balance systems. There are five available air velocity units - ft./min (fpm), m/sec, mph, mph and knots. The DAF800 is lightweight and features low-friction ball vane wheels to provide high accuracy at all air speeds. It has minimum and maximum recall plus data hold and auto power off. It is CE and RoHS approved. Includes wrist strap, user. Requires 1 9V battery (not included).GENERAL TOOLS - THE PRECISE TOOL FOR DOING THE JOB EXACTLY RIGHT. Offering over 1,000 tools, we?re proud to provide tradesmen, craftsmen and DIYers around the world with a broad range of affordable, specific-purpose mechanical hand tools and precision measuring and inspection tools.For inquiries, please contact our Customer Service Department at 212-431-6100. We strive to provide our customers with 100% satisfaction.WORK SMARTER, MEASURE BETTER & BE MORE PRODUCTIVE WITH GENERAL TOOLS

Five available air velocity units are ft./min (fpm), m/sec, mph, mph and knots; low-friction ball vane wheels provide high accuracy at all air speeds Small and light enough for one-handed operation; features minimum/maximum store and recall plus data hold and auto power off Measurement ranges are 1.4 to 108 mph, 0.4 to 30m/sec, 80 to 5810 fpm, 0.9 to 67 mph, 0.8 to 58.3 knots Measurement accuracy is +/-3% of full-scale value below 20m/sec; +/-4% of full-scale value above 20m/sec