The dewalt de0772 waterproof digital laser detector with clamp enables consistent accuracy near and far regardless of beam size in fine setting 1mm compatible with all rotary lasers interior exterior visible and invisible extending the operating range of most lasers to over 300m radius 100 waterproof design heavy duty clamp for job site durability with front and rear lcd displays for easy viewing adjustable volume control high low and mute 100 dba high can be heard on the noisiest job sites a