Harden Red Beam laser level

Red Beam Laser Level
*2 red lines                      
*Sway material: copper
*Swaying rest time: 4Seconds
*Damping Level：Automatic 
*Accuracy：10m/±2mm 
*Dustproof and waterproof rating: IP54
*Work temperature: - 10℃~+50℃  
*Stock temperature: - 20℃~+80℃                                   
*3Pcs  AA  1.5V batteriers   
*With strong magnetic
*1Pc support holder  
*3Pcs alkaline batteries included                  
*Packing: Color box