With OEM-approved technology, the Redline Detection Smoke Pro Total Tech B-Model allows users to quickly detect, locate and repair hundreds of leaks. The product has been entirely re-engineered, resulting in the ability to find even finer/smaller faults and leaks (now finds leaks down to 0.010" compared to the previous 0.020"), to meet new EVAP testing standards. The updated flow meter will locate the most sensitive leaks, and also includes a new compound pressure gauge and a decay feature verifies repairs are complete. The size and weight have also been re-engineered so the machine is even more compact and lightweight. The B-Model is now just 11.25" tall, compared to previous models at 12.5". The B-Model also weighs just 6.5 lbs, down from 7.75 lbs for previous Smoke Pro models.