Features: Achieve precise measurements effortlessly with this auto leveling level feature double red/green beams, delivering high accuracy (±1/13inch) across 360 degree environment. Features intelligent calibration technology with ±3° auto leveling ranges and high visibilities green (100ft ranges) for superior clearness in bright conditions. Essential for construction professional, interior contractors, and DIY enthusiasts requiring reliable alignment solution. Perfect for wall framing, tile installation, suspended ceiling projects, and outdoor applications like fence building. Engineered with impact resistant ABS housing and IP54 protections for durability in hard worksites conditions. Specifications: Component: ABS Size: Approx.7.6x7.7cm/2.99x3.03inches Color: Red/Green Type:511/521(Optional) Accuracy: ± 3mm/10m Leveling ranges: 4 °± 1 ° Leveling time: ≤ 3seconds Expansion angle: H&V: 110 ° protections level: IP54 Working temperature: -10 ° C~50 ° C Storage temperature: -20 ° C~60 ° C Package Includes: 1Set Automatic Calibration Level(not including battery) note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item