Mini USB Charging Digital Laser Distance Meter 40M 60M 80M 100M Handheld Rangefinder Laser Range Finder Measuring Tool Product Features: 1. High-precision one-piece molding proce, alloy material, comfortable feeling. 2. Powerful, can be word test, can also be tested multiple times, can also test angle. 3. Small and lightweight, 30g weight, hold it in the hand without any burden. 4. High measurement accuracy, durable, strong battery life. 5. Wide range of application, you can think of it whenever you need to measure it, house decoration measurement, infrastructure measurement, etc. Specification: Product material: aluminum alloy + ABS Product color: black Product size: 8.7*2.76*1.5cm Product net weight: 30g Product gro weight: 50g Measurement accuracy: ± (2.0mm+5x D) Measuring range: 0.03~25 meter Measurement reference: pre/post reference Measurement unit: m/ft/in Laser type: Cla2, 630~670nm, <1mW Working temperature: 0°C ~ 40°C Battery type: 3.7V 250mAh polymer lithium battery(built-in lithium battery shipped) Charging port: Micro USB Number of buttons: 3 Function description: continuous measurement, area, volume, Pythagorean measurement, electronic angle, data storage, addition and subtraction Electronic angle: optional Packing list: instruction manual + rangefinder + data cable Tips: 1. Please do not look directly at the beam. 2. Keep out of reach of children. 3. The instrument parts must be kept clean at all times, please close them before cleaning. When there is dust on the laser transmitting port and receiving lens, use a soft cloth or neutral screen cleaner with clean water and wipe it. Do not use acidic or alkaline detergents for cleaning; Also, do not use alcohol or other solvents for cleaning 4. The meter is not waterproof, can not be wet or placed in water.