This laser level is widely used for any work that requires straight lines or precise measurements, such as hanging pictures, installing shelves or air conditioners, building construction , interior decoration, etc. Features: 1.Can project 1 horizontal line and 1 vertical line with a single line switch. 2. Magnetic damping compensator to ensure fast self-leveling time. 3.Starts slant line function, slope lock mode and auto-leveling function.< /p> 4.Auto leveling and laser line will flash if the device is out of auto leveling range after opening the lock key. 5. Features one button and one key lock, easy to operate and control. 6.Special anti-vibration design to prevent vibration during transportation, with 1/4'' interface. for connecting a tripod. 7.Perfect for home decoration, installing flooring, framing, laying tiles and wall pictures, etc. 8.Mini size and light weight for easier use and carrying. Specifications: Type: With stand / Without stand (optional) Laser beam: 1H1V (cross line, horizontal line, vertical line) Quantity of laser diodes: Two Light color: red beam p> Effective working range: 15m Wavelength: 630-670nm Laser power (H/V): 5mw < p>Leveling accuracy: 1.5mm at a distance of 5m, 3mm at a distance of 10m Laser safety class: Class , Output 1mw Material : ABS Auto leveling range: 41 Beam emission angle (H/V): 130. < p>Auto leveling time: 3s Auto leveling function: Yes Waterproof level: IP54 Interface of the connector: 1/4 thread Operating time: 20 hours Power supply: 4 * 1.5V AA Batteries (not included) Operating temperature: -1050 Storage Temperature: -2570 Item Size: About 90 * 58 * 85mm / 3.5 * 2.3 * 3.3 in Item Weight: Approx. 449g (with stand) / 258g (without stand) Package Size: < p>About 24.3 * 11 * 8.6cm / 9.6 * 4.3 * 3.4in (with stand) About 12.5 * 10.5 * 7.8cm / 4. 9 * 4.1 * 3.1in (without stand) Package weight: About 605g (with stand) / 380g (without stand) List Packages: 1 * Laser Level 1 * Protective Bag 1 * Bracket 1 * User Manual usage (English)