The MT-1/NT5 is a uniquely versatile single-phase watthour meter tester. Loaded with features at only 5.7 lb, it is among the smallest single-phase meter testers available today.
The MT?1/NT5 can test two phases simultaneously or separately, for commercial dual phase meters (5S, 12S, 35S and 45S). The meter under test is entirely controlled by the test socket. No wiring setup needed.