Green laser detector/receiver for Leica, Topcon, Rugby, Spectra rotary laser levels with a wavelength of 515nm. Device size (including shell) 140mm x 68mm x 25mm. This detector is designed for green laser beams with a wavelength between 500 and 540nm. Beam reception indicator: LCD display on front and back with buzzer alert. Power supply: 1 x 9V battery (not included). Operating time: up to 40 hours. Detection accuracy: 1mm and 5mm. Weight: 200g. Battery level indicator displayed on LCD screen. Acoustic and visual alerts (sound can be enabled or disabled). Beam color: Green. Product: Laser Detector/Receiver. MPN: Green Laser Detector. Package includes: 1 x Green Light Laser Detector. Note: Measurement tolerances of approximately 2-3 cm may occur due to variations in measurement methods. This is not a defect. Actual product color may vary slightly due to lighting and screen settings. Please refer to the physical product for final color reference.