The Stanley Rotary laser level uses a Red beam to work over a range of 30 metres and 240 metres with a receiver. The Stanley Rotary level has an accuracy or +/- 6 mm in a 30 metre horizontal projection and +/- 9 mm in a 30 metre vertical projection, this will ensure that no matter the application. The Stanley laser can be used for small residential jobsites with a focus on applications such as drop ceilings but is versatile and can be used outdoors for landscaping, terrace leveling, fence lines and much more. When using this laser, you can have the confidence that the end result will be level. The housing is covered with rubberised areas and has an IP54 rating against dust and water splashes. The laser has a pendulum lock for safe transportation and a 5/8" thread so that you are able to use with a tripod. Supplied with includes case, 2 D-type batteries, glasses, target card , detector holder and rotary laser detector and 2Xaa batteries.