Handheld Infrared Laser Distance Meter Rangefinder High Accuracy Range Measuring Gauge for Construction SW‑MS100(100m Measurement Range) Item Type: Laser Rangefinder Material: ABS Gross Weight: 150g / 5.3in Product Size: 10.5x4.3x2.5CM / 4.1x1.7x1.0in Battery (delivered without battery): 2pcs AAA Scope of Application: Ranging Product Functions: Continuous measurement, area measurement, volume measurement, Pythagorean Measurement, addition and subtraction measurement, area volume addition and subtraction, maximum and minimum function, automatic calibration function, sound prompt Distance Measurement Accuracy: ±(2mm+dx1/10000) Laser Type: Class 2 630-670nm, <1mW Number of Storage Records: 99 Automatically Cut Off the Laser: 20 seconds (single measurement) Automatic Shutdown: 150 seconds Full Power Working Time: 4000/8000 times Storage Temperature Range: -20℃-60℃ Operating Temperature Range: 0℃-40℃ Storage Humidity Range: 20%-80%RH Battery Charging: Not rechargeable Angle Measurement: logistics level bubble Usage Scenarios: Widely used in interior decoration, interior design, architecture (rooms, buildings, factories, warehouses), etc.; Use Places: construction, interior decoration, road planning, warehouse logistics, housing acceptance and other industries, widely used;