Characteristics: --Made of aluminum and ABS, the laser rangerfinder is sturdy and drop resistant. In addition, the appearance is smooth and upscale. After you receive it, you will like it very much.- The laser rangefinder is dustproof and waterproof. The dustproof grade is IP5X; and the waterproof grade is IPX4.- The measuring range is between 0.05 and 40 m. And the measurement accuracy is 2 (mm). Thus, this laser range finder is more convenient and precise.- The screen is clear. It is clear for you to read the measurement data.- Adopting the portable design, the laser rangefinder is easily carried and used.Setting:--Type: portable laser rangefinder- Size: 100 * 32 * 12.6MM- Measurement accuracy: 2 (mm)--Measuring range: 0.05-40 (m)- Battery type: polymer--Resolution: 1.6- Temperature range: 0-40 degree- Accuracy: 2 mm- Dust and splash proof: IP54--Material: Aluminum alloy + ABS- Maximum storage: 20--Maximum / minimum value: 40m-0.05m- Net weight: 70 grams--Specifications: 40 meters--Packing list:1 * rangefinder1 * USB charging cable1 * thong1 * instructionPacking list:--Packing list:1 * rangefinder1 * USB charging cable1 * thong1 * instruction