SNDWAY SW-M70 Laser Distance Meter Infrared Measuring Instrument 1. Good phase optical linearity, accurate and stable 2. Aspheric optical focusing lens, dual photoreceptor holes, physical bi-level bubble 3. Aspherical optical lens, excellent low distortion and anti-interference performance, greatly reducing the impact of ambient light 4. HD backlight, easy to use in dark environment 5. Double horizontal bubble, clear observation of horizontal and vertical to improve measurement accuracy 6. Anti-fall, one-piece molding, inner and outer rubber 7. Protection class: IP54 8. Working voltage: 3v30 groups of data storage, can be consulted at any time, record without paper and pen 9. Measurement mode: length area volume Pythagorean angle measurement height measurement wall speed measurement 10. Waterproof and dustproof, 1.5 meters 11. Measuring range: SW-G4S: 40 meters, SW-M50: 50 meters, SW-M70: 70 meters, SW-M80: 80 meters, SW-M100: 100 meters, SW-M120: 120 meters 12. Scope of application: indoor ranging measurement, lengthheight measurement, infrared ranging 13. Power supply mode: 2 AA batteries (not included in the product) 14. Packing list: host, warranty cardcertificate, manual, color box, cloth bag, reflector, lanyard 15. Dimensions: 11.2 x 5 x 2.5cm 16. Weight: 125g