Toptronic Professional Digital Multimeter (True RMS) • RS232 Interface • 500 000 count display • 100 kHz bandwidth • Dual temperature • Back light • Crest mode • Diode • Continuity • Duty cycle • Data Hold • Record mode • Battery included • Test leads included Model Specification: · Dimensions (mm): 198(L) x 97(W) x 55(H) · Weight: 430g · Power Source: 9V Battery