8-in-1 multifunction installation tester: insulation resistance, loop impedance, RCD, earth resistance, voltage, phase rotation and PSC. 3.5″ colour display with wiring diagrams, Bluetooth 4.0 and app reporting. Rated CAT IV 400V.
The Major Tech MT390 is a multifunction installation tester combining eight test functions in one instrument — insulation resistance, loop impedance, RCD, earth resistance, voltage, phase rotation and prospective short-circuit current (PSC). A 3.5-inch TFT colour display shows on-screen wiring diagrams to guide each test.
Bluetooth 4.0 and the companion app let you share measurements instantly to iOS and Android devices and export test reports by email in CSV format, with internal memory for on-site recording. Powered by 8 × AA alkaline or Ni-MH cells (approx. 15 hours), it is housed in a rugged double-injection case and complies with IEC 61010 CAT IV 400V. Supplied with carrying case, neck strap, test leads, USB cable, software, 3-wire earth cable, auxiliary earth spikes, batteries and manual.
| Test Functions | Insulation, loop impedance, RCD, earth resistance, voltage, phase rotation, PSC (8-in-1) |
|---|---|
| Display | 3.5″ TFT colour with on-screen wiring diagrams |
| Connectivity | Bluetooth 4.0; app (iOS/Android); CSV email reports |
| Memory | Internal on-site recording |
| Power | 8 × AA (alkaline or Ni-MH), approx. 15 h |
| Safety Rating | CAT IV 400V (IEC 61010) |
| Housing | Rugged double-injection rubber |
| Supplied | Case, leads, USB, software, earth cable & spikes, batteries, manual |
The Major Tech MT390 is designed for electrical installation testing and certification:
Hinco Instruments is your authorised Major Tech distributor in Perth, WA. Contact us for pricing, availability, and technical support.
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