Tajima Laser Vertical and Horizontal ZERO-TY Level,

Size and weight: 119mm high x 87mm wide, approximately 450g (including batteries), approximately 1240g (when stored in case) Emitted light source, wavelength, laser safety standard: Visible light semiconductor laser, line 635 mm, Class 1M (JIS-C6802, 2011) Optical output, pulse width, line width: 2.5mW or less, 50μsec (mode 1), 90μsec (mode 2), approximately 2.5mm at 7.5m Irradiation line accuracy and reach distance accuracy: Within ±0.81 mm at 10 m, within ±1 mm at 7.5 m Automatic correction range and control method: ±2 degrees (laser line turns off outside this range) and magnetic damper method Specifications: Dustproof and waterproof performance, dustproof and waterproof design Power Supply: Three AA alkaline batteries (AA Ni-MH rechargeable batteries can also be used) - (Mode 1) Approx. 22 hours (Mode 2) Approx. 14 hours Battery life warning: Laser light flashes (after 30 seconds of flashing, the laser turns off and only the switch LED flashes) Laser safety standard: Class 1M