... rotary laser 1.Self-calibration function 2.Environment-friendly battery LS525/LSG525 Multi-function automatic-leveling rotary laserFeatures and FunctionsElectronic ... Scan angle: Very small, small, big, very big IP class: IP66 Power: 3* C batteries or rechargeable battery ... target,LS310-4 adapter,rechargeable batteries,alkaline battery box,paded hard caseLSG525,LS312 remote control,LSG715 detector, ...