... for convenient working.*With indoors/outdoors switch function, laser detector can be used for outdoors operation*Remote control ... target, Batteries,Plastic case.*Optional accessories: LVH800 laser detector with clamp, RL800 Remote control.ItemSpecificationsAccuracy±1mm/5mSelf ... leveling±3°Working range 10m without detector, 25m with detectorLaser sourcelaser diodeWave length 635nm±5nm ...