Review on Klein Tools VDV770 850 Upgrade Single Step by Joseph Rasmussen

According to my experience this scanner is an excellent tool for HVAC and electrical work. It easily detects wiring faults and checks continuity with pinpoint accuracy. Its compact size means it can go anywhere you need it, and the backlight makes it easy to read in any lighting condition. Unfortunately, the price may be a bit steep for some, but it is worth the investment if you do a lot of work in Tools and Home Improvement..