... Digital Insulation Tester 1 5Tohm Digital Insulation Tester 2 5KV Digital Insulation Tester 3 OEM Insulation Tester Digital Insulation ... Wide adjust;(250V; 500V; 1000V; 2.5kv; 5kv). Fine adjust (250V~1KV; Step 25V; 1KV~5KV, Step 100V). Accuracy; 5%. Step mode ... :500V, 1.0KV, 1.5KV, 2.0KV, 2.5KV. Test Current 1nA~3mATemperature compensationFor obtaining the insulation resistance ...