Legal For Trade, self-contained portable bench beam scale ideal for laboratory, industrial and outdoor field work..  Compact and portable design offers an exceptional combination of ruggedness and ease of operation.  The PBB52 offers a total weigh capacity of 52 lbs and features 3 slides: 50 lb x 2 lb; 1 lb x 1/4 oz; 1 lb x 0.02 lb.  Built-in platform and steel locking mechanisms help ensure safe, secure operation and transportability.  Tare adjustment is tool operated and the bottom left or right beam sections may be used as a measured tar bar.  A sliding poise is standard and permits blank taring up to 10 pounds.  The scale comes fully assembled with adjustable leveling legs, bubble level indicator and a built-in carrying handle.  This unit is constructed of steel and cast aluminum and incorporates hardened steel pivots and self-aligning steel bearings.