一级的文书

1.Wavelength of Laser: 635 nm 2.Self Adjusting Laser Leveloutputs: horizontal and vertical lines 3. Self Leveling Scope: + /- 3.5° 4.Accuracy of laser: +/-1.5 mm /5m 5. Fan Angle: 90°-140° 6. Operative Distance: 6m 7. Power Supply: 2AA Batteries3 V 8.packaging: toolbox USING THE LEVEL INSTRUMENT Place the Laser Level in a tripod or relatively stable plane. Open the Pendulum Lock/Unlock button, press the top switch, open the laser level, the top red light lit up, also issued laser. Rotating equipment, make sure the laser line indicates objectives, find position for the job accurately.The work is over, press the top switch, close theequipment,close the Pendulum Lock/Unlock button, fix and lock the equipment.