Green laser detector/receiver for Leica, Topcon, Rugby, Spectra rotary laser levels with a wavelength of 515 Device size (including shell) 140mm x 68mm x 25mm This detector is only suitable for green beams with a wavelength of 500 to 540nm Beam reception indicator: LCD (front and back) / buzzer Power supply: 1 x 9V batteries (not included) Operating time: 40 hours Detection accuracy: 1mm and 5mm Weight: 200g Battery level indicator on the LCD screen Acoustic and visible indicators (sound can be turned on or off) Beam Color: Green Product: Laser Detector/Receiver MPN: Green Laser Detector Package Contents 1 x Green Light Laser Detector Note: Due to different measurement methods, the measurement allows an error of about 2-3 cm. This is not a quality issue. (1 inch = 2.54 cm) Due to variations in lighting and screen settings, the product color may differ slightly from the image. Please refer to the physical item.