SainSmart Advanced Multi-Use Transistor Tester Capacitor ESR Meter Inductance Resistor NPN PNP MOSFET It has all functions of the previous version. It can test resistor with higher precision (2 digits after decimal point) Test range of resistor is 0.5~20M larger compared with the previous version (reason for we capped the figurte to 20M is 20M is the largest we have at hand) The enhanced version can test TWO (2) resistors at the same time; It can test capacitors with higher precision (2 digits after decimal point) 1-year warranty and technical support dedicated from SainSmart.