Laser waveform length: 635nm Red lines (NK-520, NK-530, NK-550); 532nm Green lines (NK-520G, NK-530G, NK-550G).
Laser power: < 1 mW.
Laser grade: CLASS II.
Laser line: NK-520/NK-520G is 2 Lines/3 Point; NK-530/NK-530G is 3 Lines/4 Point; NK-550/NK-550G is 5 Lines/6 Point.
Plump down point: waveform length=650nm.
Laser strengthening point: Yes.
Horizontal accuracy: 1mm/7m.
Vertical accuracy: 1mm/7m.
Orthogonality accuracy: 90 Degree 60''.
Plumb down point accuracy: 0.5mm/1.5m.
Zenith accuracy: (NA) 1mm/7m.
Indoor operating radius about 10m.
Emission angle: Vertical line >= 110 degree, Horizontal line >= 130 degree.
With corresponding laser detector, operating radius about 50m.
Self-leveling: Gravity pendulum-magnetic damp.
Leveling range: 2.5 degree.
Outdoor mode: Yes.
Battery type: Polymer lithium battery.
Battery capacity (mAh): NK-520/NK-520G is 1050mAh, NK-530/NK-530G/NK-550/NK-550G is 1800mAh.
Working hours: About 6 hours (with all laser tubes on).
Power indicator: Backlight of horizontal bubble locator is ON.
Charge indicator: Yes.
Low power indicator: Yes (Backlight of horizontal bubble locator is flashing).
Power supply adaptor: DC 4.5V.
Color: Red and Black.
Note: If the device is out of level, the laser will be shut down automatically with audio alert.
1 x NKTECH Laser Level.
1 x Polymer Lithium Battery.
1 x English User Manual.
1 x Plastic Kit Box.
1 x Target Card.
1 x Goggles.
1 x Strap.