ultrasonic distance meter DM300

SPESIFICATION: 1. Measuring range: 0.35 20m(14inch 65feet) 2. Accuracy: ±1% of reading 3. Response time: 2 sec 4.Power Supply: 9V , with battery indicator 5. Current consumption: Stand-by current: ≤30uA 6.Operating current:8 45mA 7. Auto shut off : 60 seconds after last key stroke(approx) 8. Lcd backlight: active in 7 sec(approx) 9.Operation environment: Temperature: 0 to 450C, Humidity:45% 90%RH 10. Wavelength: 650 nm 11. Laser class: Class II, output ≤ 1mW FUNCTION: 1. Measures in imperial/metric 2.Start point selection 3.dynamic measure 4.Data store/recall 5.Computes areas and volumes 6.15 groups of value in memory 7.Sum of lengths 8.Auto/manual shut-off 9.LCD backlight 10.Key sound,beeps for wrong reading finding and reading confirmation PACKING: 1. Product Dimension:150x75x44mm 2. Product Weight:220g(battery included) 3. CTN Size:50x330x300mm, 50pcs/CTN 15kg/CTN