Specification: Product material: aluminum alloy + ABSProduct color: grayProduct size: 5.6*2.2*1.3cmColor box size: 10.4*4.3*2.8cmProduct net weight: 24gProduct gro weight: 50gMeasurement accuracy: (2.0mm+5x D )Range: 0.03~50m optionalMeasurement datum: front/rear datumMeasurement unit: m/ft/inLaser type: Cla2, 630~670nm, <1mWWorking temperature: 0 ~40Battery type: 3.7V 250mAh polymer lithium battery (built-in lithium battery shipped)Charging interface: Micro USBNumber of buttons: 3Function description: continuous measurement, area, volume, Pythagorean measurementElectronic angle: optional Selling point: 1. High-precision one-piece molding proce, polishing and sandblasting, comfortable hand feeling.2. Powerful, you can test words, you can test multiple times, and you can test angles.3. Small and lightweight, with a weight of 24g, there is no burden on the hand.4. High measurement accuracy, durable and strong battery life.5. It has a wide range of applications. You can think of it and use it whenever you need to measure, such as house decoration measurement, infrastructure measurement, etc. Kind tips: 1. Please do not look directly into the beam.2. Please keep it out of the reach of children.3. Do not use the instrument in flammable and explosive environments.4. Do not use this instrument near medical equipment or in the air.5. 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 with clean water or a neutral screen cleaner, and then wipe. Do not use acidic or alkaline detergents for cleaning; also, do not use alcohol or other solvents for cleaning6. The meter is not waterproof and cannot be wetted or placed in water. Package list: Manual + rangefinder + lanyard + data cable Laser rangefinder,Range finder,Laser measuring tape,digital tape measure,laser ruler