Description:1. High precision integrated molding proce, alloy material, comfortable feel.2. It has powerful functions, including word test, multiple tests and angle test.3. It is small and light, weighs 30g, and has no burden to hold.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+ABSProduct color: blackProduct size: 8.7 * 2.76 * 1.5cmNet weight of product: 30gGro weight of product: 50gMeasurement accuracy: (2.0mm+5x D)Range: 0.03~25mMeasuring datum: front/rear datumMeasurement unit: m/ft/inLaser type: Cla2630~670nm,<1mWWorking temperature: 0 ~40 Battery type: 3.7V 250mAh polymer lithium battery (shipped with built-in lithium battery)Charging interface: Micro USBNumber of keys: 3Function description: continuous measurement, area, volume, pythagorean measurement, electronic angle, data storage, addition and subtractionElectronic angle: optionalPackage included:1 x Range finder1 x Data cable1 x InstructionReminder:1. Please do not look directly at the beam.2. Please keep it out of reach of children.3. The instrument components 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 cleaning water or neutral screen cleaner, and then wipe it. Do not use acid or alkaline detergent for cleaning; In addition, do not use alcohol or other solvents for cleaningThe instrument shall not be waterproof, wet or placed in water.