1. Measuring: Air Velocity & Air Temperature & Air Volume 2. Measuring range: Air velocity, 0-30m/s; Air temperature, 0 - 45C, 32 - 113F; Air volume, 0-999900m3/min 3. Resolution: 0.001m/s, 0.1C 4. Unit of Velocity: m/s, Ft/min, Knots, Km/hr, Mph 5. C/F Selection 6. Air temperature measuring accuracy: +-2C 7. Air velocity measuring accuracy: +-3%+-0.1dgts 8. Max/Min reading 9. Average/Current reading 10. Data hold 11. Backlight display 12. Low battery indication 13. Manual/Auto power shut off 14. USB Interface and cableSpecification: General Model GM8903 Material ABS, TPU Power Supply 4*1.5V AAA batteries Size 76.8*38*30.2cm Display Size 2.6 inch Weight 219g Package Include Package Contents 1 x Manual 1 x Test Probe 1 x CD 1 x USB Cable 1 x Anemometer 1 x Portable Bag Package Weight One Package Weight 1.03kgs / 2.26lb One Package Size 35cm * 17cm * 6cm / 13.78inch * 6.69inch * 2.36inch Qty per Carton 20 Carton Weight 22.00kgs / 48.50lb Carton Size 62cm * 36cm * 37cm / 24.41inch * 14.17inch * 14.57inch Loading Container 20GP: 322 cartons * 20 pcs = 6440 pcs40HQ: 749 cartons * 20 pcs = 14980 pcs