The Snap-on 1,000 PSI Wireless Diesel Pressure Tester Set, No. EEDF700, is designed to diagnose engine performance issues. With a range of 0 to 1,000 psi and 0 to 30 inHG, it stores results for viewing on the tool or shares them wirelessly via a free app on Bluetooth-enabled Android or Apple devices. The tool measures in psi, kPa, Bar, mBar, inHG, inH20, and cmH20, and graphs and stores up to 12 readings, so writing the results isn’t required. Lift tank fuel pump, engine return flow, and flow restriction testing adapters are included in the set.