The Bosch LR 7 Professional Laser Receiver can detect green and red laser lines. With a large 8cm reception area for fast detection of laser line. It also features visual (display and LEDs) and audible signals, for working in various lighting conditions. Specifications: Range: 5 - Xm*. Accuracy (Fine/Rough) : +- 1mm/+- 3mm. Suitable for: GCL 2-50, GCL 2-50 G, GCL 2-50 C, GCL 2-50 CG, GLL 3-80, GLL 3-80 G, GLL 3-80 C, GLL 3-80 CG. Power: 2 x AAA 1.5V LR03 Batteries (supplied) Dust and Splash Protection: IP54. Weight: 150g. *Maximum working range for operation with laser receiver according to the operating instructions for the Bosch line laser or Bosch point and line laser that is used.