General description Intelligent Laser Rangefinder is a compact and efficient measuring tool designed for various applications. It features a sleek design made from aluminum alloy and ABS, ensuring durability and a comfortable grip. Technical specifications Product size: 5.6 x 2.2 x 1.3 cm Color box size: 10.4 x 4.3 x 2.8 cm Measurement accuracy: ±(2.0mm + 5x D) Range: 0.03 ~ 25 meters Measurement unit: m / ft / in Laser type: Class 2, 630 ~ 670nm, 1mW Working temperature: 0 ℃ ~ 40 ℃ Battery type: polymer lithium battery 3.7V 250mAh (built-in) Charging interface: Micro USB Number of buttons: 3 Usage Continuous measurement Area measurement Volume measurement Pythagorean measurement Electronic angle measurement (optional) Other information Weight: 24g High-precision one-piece molding process with polishing and sandblasting for a comfortable hand feel Powerful functionality allowing for multiple tests and angle measurements