Application: Infrared laser level can be used to hang pictures and install right-angle shelves. It is very suitable for any work that requires straight line or precise measurement. Application: Infrared laser level can be used to hang pictures and install right-angle shelves. It is very suitable for any work that requires straight line or precise measurement. Easy to Use: The dual diodes of the infrared laser level meter can generate a 90-degree laser beam on any surface. Comes with magnets and wall mounts for easy maintenance at home Specifications: Infrared laser level meter can project 2 lines: vertical line, horizontal line, cross line, accuracy 0.01. Laser wavelength: 650nm-680nm. Power supply: 2 x 1.5V AAA batteries (not included). Material: The infrared laser level is made of high-quality ABS material, which has excellent dimensional stability, durability and long service life.