The AEMC 1026 Digital 1000V Megohmmeter Resistance Tester 2117.72 is a very useful hand-held meter capable of performing four functional tests. It is a AC/DC Voltmeter, Ohmmeter, Continuity tester, and a Megohmmeter. Accurately tests at 1000V, 500V, and 250V and measures insulation resistance from 1k? to 1000M?. Emits an audible alert during continuity test for resistances under 40?, and a 600VAC range for voltage safety check. Furthermore, this model's ohmmeter measures from 0.1? to 4000?.