Specification:
Leveling Range ±3º
Laser wavelength: 515nm
Laser Standard Class Ⅱ
Accuracy:        ±3mm/10m
Power supply:     4 pcs AA alklaine batteries
Working Temperature -10℃-- +45℃
Features:
Four times brightness for both lines and dots ensures perfect indoor use and suits to major outdoors tasks  
Larger fan angle cross-line plus five dots ensures great utility and versatility 
Robust/ hard design, 1M falling resistance 
Laser / dots switch function 
Locked function for slope use