1. Good phase optical linearity, accurate and stable2. Waterproof and dustproof, 1.5 meters anti-drop, one-piece molding3. Aspherical optical lens, excellent low distortion and anti-interference performance, greatly reducing the impact of ambient light4. HD backlight, easy to use in dark environment5. Measurement mode: length / area / volume / Pythagorean / angle measurement / height measurement / wall speed measurement6. Measuring range: SWDS50: 50 meters, SWDS70: 70 meters, SWDS100: 100 meters, SWDS120: 120 meters7. Scope of application: indoor ranging measurement, length/height measurement, infrared ranging8. Working voltage: 3v9. Working current: 1.6A10. Working power: 4.8w11. Packing list: host, manual, color box, carrying bag, reflector, lanyard12. Power supply mode: 2 AA batteries (not included in the product)13. Protection class: IP5414. Dimensions: 11.2 x 5 x 2.5cm15. Weight: 200gSpecification: Package Weight One Package Weight 0.20kgs / 0.44lb One Package Size 16.3cm * 8.9cm * 5cm / 6.42inch * 3.5inch * 1.97inch Qty per Carton 80 Carton Weight 17.50kgs / 38.58lb Carton Size 38cm * 57cm * 39cm / 14.96inch * 22.44inch * 15.35inch Loading Container 20GP: 315 cartons * 80 pcs = 25200 pcs40HQ: 732 cartons * 80 pcs = 58560 pcs