Marmonix MIR-1000 Insulation and Continuity Tester

The Marmonix MIR-1000 is a compact insulation and continuity tester for installation and maintenance work. Compared with the high-voltage MIR-510 5 kV megohmmeter, choose the MIR-1000 when you need everyday 100–1000 V insulation tests up to about 5.5 GΩ plus continuity and AC/DC voltage in one handheld—not a 5 kV / TΩ-class HV instrument.

Browse Marmonix insulation testers, and read our step-by-step insulation resistance (megger) guide or the 2026 megohmmeter buyer’s guide.

MIR-1000 insulation tester highlights

What the MIR-1000 offers electricians and QC teams:

• Insulation test voltages 100 / 250 / 500 / 1000 V with range up to about 5.5 GΩ
• Continuity / low-resistance measurement to 999 Ω at 0.1 Ω resolution
• AC/DC voltage measurement about 30–600 V with 1 V resolution
• Fast auto-ranging sampling (~2 readings/s) with data hold and min/max
• Overload protection up to about AC 1200 V / 10 s on insulation ranges
• Powered by 6 × AA cells; about 176×110×77 mm handheld format

Where teams use the MIR-1000 megohmmeter

Typical MIR-1000 use cases include:

• Installation acceptance — cables, motors, and switchgear at ≤1000 V test voltage
• Maintenance rounds — insulation trending plus continuity checks on the same tool
• Panel diagnostics — AC/DC voltage confirmation alongside megohm tests
• Lab & QC — portable insulation verification without HV 5 kV gear

MIR-1000 typical specifications

MIR-1000 insulation tester questions

What test voltages does the MIR-1000 provide?

It offers rated insulation voltages of 100 V, 250 V, 500 V, and 1000 V, covering most LV installation and motor insulation checks.

When should I choose the MIR-1000 instead of the MIR-510?

Choose the MIR-1000 for handheld ≤1000 V insulation work with continuity and AC/DC voltage; pick the MIR-510 when you need high-voltage testing around 5 kV and TΩ-class insulation resistance.

Can the MIR-1000 measure continuity and voltage?

Yes — besides megohm tests it measures low resistance to about 999 Ω and AC/DC voltage to about 600 V, so many site checks stay on one instrument.

Related: Insulation testers · Megger guide · MIR-510