A laser level is a new type of small laser-based surveying and mapping instrument. When placed at a certain point, it can project mutually perpendicular horizontal and vertical lines on the wall, functioning to calibrate the reference line. Traditional laser levels rely on manual adjustment to make the horizontal direction parallel to the horizontal plane and the vertical direction reach plumb. ### How to Repair a Laser Level That Doesn't Alarm? Generally, a laser level not alarming may be due to low battery power or damage to the laser emission module. - If the battery power is low, you can replace the battery or charge it; if the module is damaged, the instrument needs to be sent to a professional repair center for maintenance. **Repair Case 1:** The repair steps for a Tiebang laser level not alarming are simple. There's no need to remove the outer shell; you just need to take off the base. You'll see a rubber ring here. Use a cotton swab dipped in alcohol to clean the rubber ring, as well as this ring. **Repair Case 2:** Take out an electric drill to remove the outer screws. Take out the white body of the level and remove the black conductive ring. After removing it, take a copper conductive ring with good conductivity and directly replace the old one with the copper one. After replacement, reassemble the parts and power it on. In addition, to avoid similar problems, pay attention to maintenance during daily use: avoid using it in harsh environments, and perform regular calibration and inspections. ### Which Laser Level Is the Best for Outdoor Use in the Sun? For outdoor laser levels used in the sun, the Bosch brand is relatively good. Levels are generally divided into two types: ordinary green light and Osram blue light: 1. Green light levels are relatively common in the market and can be used both indoors and outdoors. In extremely strong outdoor light, the visible range of green light levels is usually around 3 meters. 2. Blue light levels are relatively better in quality than green light ones. The light color is slightly dark green, and the laser head is as stable as that of red light. However, ordinary blue light is not as visible as green light outdoors in the daytime, so blue light levels are more suitable for indoor use. Therefore, if you need to use a level in strong outdoor light, a green light level is more suitable. The Taoyitao 12-line green light high-intensity level can project clear lines even when used outdoors. It adopts an imported light source from Germany's Osram, which can emit ultra-bright green light, clearly visible even at 15 meters away or within 30 meters. In addition, it is equipped with a large-capacity battery, allowing for ultra-long standby time of one week, which is convenient and durable. The body is made of thickened ABS material, and the pure metal base is wear-resistant and anti-drop, with a drop resistance 5 times that of ordinary levels. The double-layer protected laser head is also not afraid of dust or water ingress, making it usable in any construction site. Source: Xiaopeng Who Repairs Levels, Guangtong Levels