http://tinyurl.com/pedmgou<P>Spectra LL100-2 Precision Laser LevelProduct Review<P> Click on the link for more reviews<P>Complete leveling crew in a case laser, tripod, receiver and clamp, grade rod, alkaline batteries in a portable hard shelled carrying case<P>Simple one-button operation for quick start up<P>Height of instrument alert-unit stops rotating when jarred to avoid erroneous readings<P>Job site durable and tough-withstands a 3-Feet (1-Meter) drop on concrete or a 5-Feet (1.5-Meter) tip over without breakage and rugged design reduces downtime<P>Energy-efficient design offers long battery life on 2 D-cell alkaline batteries<P>