Variable - frequency drive (VFD) V & Hz measurement. 
Lo - Z voltage measurement to drain ghost voltages. 
Check 3 phase sequence. 
Voltage harmonic ratio measurement. 
Smart ohm for ground resistance measurement. 
Data hold & Auto hold mode. 
Max/Min/Avg record mode. 
Relative value display. 
Frequecy count. (Auto-Range) 
Temperature type K, J measurement. 
Capacitance measurement. 
Data memory & read function. 
Voltage harmonic ratio General Specifications: 
Power Source: Single standard 9-volt battery, NEDA 1604, JIS 006P, IEC 6F22. 
Weight: Approx. 470g 
Size: 193mm(L)×91mm(W)×53mm(H), (7.6"L×3.6"W×2.1"H)