Feature: 1. High precision integrated molding process, alloy material, comfortable hand feel. 2. Powerful, it can test words, multiple tests and angles. 3. It is small and light, with a weight of 30g and no burden on hands. 4. High measurement accuracy, durability and strong endurance. 5. It has a wide range of applications. You can think of it whenever you need to measure, such as house decoration measurement, infrastructure measurement, etc. Specifications: Product material: aluminum alloy+ABS Product color: black Product size: 8.7 * 2.76 * 1.5cm Measurement accuracy: (2.0mm+5x D) Range: 100m Measuring datum: front/rear datum Measurement unit: m/ft/in Laser type: Class2630~670nm,<1mW Operating temperature: 0 ~40 Battery type: 3.7V 250mAh polymer lithium battery (shipped with built-in lithium battery) Charging interface: Micro USB Electronic angle: optional Package list: 1* Manual 1* Rangefinder 1* Data cable Reminder: 1. Please do not look directly at the beam. 2. Please keep it out of the reach of children. 3. Instrument components must be kept clean at any time, please close them before cleaning. When there is dust on the laser transmitting port and receiving lens, use a soft cloth with clean water or neutral screen cleaner, and then wipe it. Do not use acidic or alkaline detergent for cleaning; In addition, do not use alcohol or other solvents for cleaning 4. The instrument is not waterproof and cannot be wet or placed in water.