The laser level meter can emit visible lase horizontal and vertical lines for the automatic leveling separately or simultaneously. Provides accurate horizontal and vertical datums for indoor construction stakeout and calibration, easy to operate, and versatile. Comes with one extension bar, which is made of thicken aluminium alloy material, 3-heights adjustable, suitable to most of laser level with 5/8" interface. Perfect for flooring tile layout, paneling, wallpapering, stenciling, wainscoting, finish carpentry, wall stud layout and partition installation. You can have a try. Features: Laser Level: 16 lines for finer positioning, with self-leveling system, flexibility and stability. Self-leveling function can conquer small rugged place such as 3, over 3 the laser light will keep blinking to remind you to put it on a flat place. Alarm function beyond the safe-range. The magnetic-damping compensation system ensures quick levelling time. 1/4" screw size for easy connection, it can be used with tripod to adjust the working height of the machine. A 360 horizontal line can be drawn on the wall. Two vertical lines can be drawn on the wall. Leaning function, it can be applied in a leaning position like upstairs building. Comes with one T-type wall mounting bracket, 7mm wall mounted distance, general for indoor and outdoor use. Three touching buttons design, one OUTDOOR/Open button, one V button, and one H button, the oblique line, horizontal line and vertical line with a clear division. The button is wear resistant, with high sensitive to switch the line mode quickly, and with comfortable hand feeling. Comes with one remote controller, A=vertical line, B=horizontal line. Scaning QR code on the back of remote controller to download smartphone APP, convenient to control the level machine. The laser level is controlled by the APP through BT connection, also has electric quantity display, laser light brightness adjustable and voice control function. Easy to carry with the case, providing quick and convenient mobility and storage. Extension Bar: Made of thicken aluminium alloy material, firm with fine load-bearing, not easy to deformed and not easy to break. Three heights adjustable, you can adjust according to your demands easily. Equipped with bubble-level to help you to check whether the tripod is horizontal or not. Equipped with rocking bar to adjust to height of the tripod, smooth and effort saving. With fixed plectrum to control to extend length to lock it tightly. Suitable to most of laser level with 5/8" interface. Note: The laser output maker is located on the output hole. Do not stare directly at the laser light. Do not disassemble the instrument and perform internal repairs by yourself. This instrument meets the laser radiation safety rating standard. Specifications: Name: Laser Level Main material: plastics metal Battery: 1 * 3.7V, 3000mAh battery(included, you will find there are two 18650 batteries inside if disassemble it) Laser ray: 360* 4, 16 lines(40) Wavelength: Green light 532nm Horizontal/vertical accuracy: 0.2mm/10m Self-levelling-range: 3 Waterproof grade: IP54 Working-range: about 25m in diameter Working time: about 5 hours Green light working temperature: -5 to 50 Extension bar interface: 5/8" Level machine size(assemble with battery): 135 * 105 * 126mm / 5.31 * 4.13 * 4.96in Bag size: 220 * 250 * 145mm / 8.66 * 9.84 * 5.71in Extension bar: 560 * 105 * 90mm / 22.05 * 4.13 * 3.54in Package size: 440 * 215 * 255mm / 17.32 * 8.46 * 10.04in Package weight: 2257g / 4.98lb Packing List: 1 * Level Machine 1 * Lifting Platform 1 * Mini Remote Controller 1 * Wall Mounted Bracket 1 * Clip 1 * Iron Board 1 * 1/4" to 5/8" Adapter 1 * Power Cable 1 * Carrying Bag 1 * Manual 1 * Tripod Stand