Electronic 90 Degree Red Light Scale, Red Light Level, Green Self Leveling Cross Line Red Light Level with Horizontal and Vertical Lines, (1PCS) Professional Level : The infrared red light and the horizontal air bubble device ensure accurate measurement and angle accuracy. You can level the horizontal and vertical with one click, which eliminates inaccurate and tedious measuring work. It is very suitable for wall installation, tile installation, door and window installation, photo frame installation, furniture decoration. Long Distance : The HD infrared red light can project the beam onto the surface to be measured, with a projection distance of up to 20 meters, which makes the construction simple and with higher efficiency. You can set it up vertically, horizontally or both depending on your needs. Durable Quality : Made of ABS material, it is strong, wear-resistant and durable enough to withstand harsh environments. Compact and portable, easy to carry. Easy to Use : It can be mounted on the wall, freeing your hands for other tasks. The leveling machine is easy to use and quick to set up and adjust. The bubble level ensures precise measurements and is versatile, e.g. B. for measuring walls, floors and ceilings.