Laser wavelength: 635nm-670nm
Luminous power: ≤1mw;
Radiation class: 2;
Radiation point accuracy: ±3mm/10m
The range of digital display equipment accuracy: 0°~360°(4 X 90°)
The Accuracy of angle-measuring: 0°and 90°±0.1°
1°and 89°±0.2°
The range of bubble measuring:0.029°=0.50mm/m basis on the underside
0.043°=0.75mm/m top of the position
Batteryvoltage: 3V (AAA 1.5V alkalescence battery )
Operating ambient temperature: 0℃~+50℃
Storage temperature: -10℃~+60℃;
Sound reminder of specific angle 0℃~ 45°.90