Features Dual beams projector with two receivers ensure to output precise measurement data The side buttons are comfortable and easy to use Soft rubber covered body and three-proofings design Specifications Model: KI202 Measuring range: 0.2~100 m Minimum precision: 0.001 m Measuring accuracy: ±1.5 mm Laser class: Class 2 Laser diode type: 630 - 670 nm, <1mW Measuring record memory 20 times Button material: Soft rubber Stand-by time: 3 minutes Unit size: 120*48*27 mm Machine weight: 120 g Accessories KI202: 2 AAA batteries , Pouch