1、The level ruler has laser emitter so that it can correct the horizontal and vertical direction of the measured object as well as assist in scribing. 2、Clear backlight LCD screen allows you to easily read measurement results even in poor light condition. 3、Magnetic bottom can be adsorbed on the metal surface for measurement. 4、High strength aluminum alloy construction, wear resistant and durable. 5、Power-saving design, the spirit level will automatically shut down after no operation for 3 minutes. 6、Widely used in equipment installation, industrial engineering, building construction, etc. 1 x Digital Laser Level Ruler Item Type: Laser Level RulerMaterial: Aluminum AlloyLength: Approx 22.5cm/ 8.86inBattery: 2 x AAA batteries (not included)Range: 4x90°Resolution: 0.05°Accuracy: ± 0.2°Operating Environment: 0~40℃, humidity ≤ 8%RHStorage Temperature: -20~60℃