Specification: Working Range: 0~30 m 1 Horizontal Line and 4 Vertical Lines Leveling accuracy:±1.0mm at 5 m Line accuracy ±1.5mm at 5 m Levelling time<3s Self-leveling range ≤3° Laser Type : Red Laser Class 3R,<5mW Without tripods, match with HLLT01152 tripods With Cross Lock Function With Laser Gain Function Operating temperature 0~+40℃ Storage temperature -20~+70℃ Batteries AA(1.5V)*4 Weight without batteries 980 g Packed by plastic box