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4V1H Self-leveling Laser Cross Line
Line accuracy:±1mm/5m
Leveling range：±4°
Diode:635 nm CLASS 2,<1mW
Power supply：Li-ion batteries
Working range(Radius) Dot：≤30m； Line：≤10m; (>30m with detector)
Working temperature:0℃～+50℃
Working time：4 hrs