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Amprobe
Amprobe MO-100 Milliohm Meter
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MO-100: 100 µΩ–2000 Ω; 4-wire; ±0.5%±2d; 100/10/1 mA; 8×AA. RFQ.
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Key parameters
Accuracy
±0.5% of reading ±2 digits (−15 to 55 °C) with supplied leads
Measuring Ranges
200.0 mΩ / 2,000 mΩ / 20.00 Ω / 200.0 Ω / 2,000 Ω
Resolution
100 μΩ on lowest range
Test Currents
100 mA / 10 mA / 1 mA by range; test-current accuracy ±0.1%
Method
Four-terminal Kelvin measurement
Max Output Voltage
20 V (C1–C2)
Fits low-resistance winding and bond testing where you need an Amprobe MO-100—four-terminal measurement from 100 µΩ resolution through 2000 Ω across five ranges with ±0.5% of reading ±2 digits accuracy.
Key advantages
- Ranges — 200.0 mΩ to 2000 Ω; 100 µΩ resolution on lowest
- Accuracy — ±0.5% rdg ±2 digits (−15…55 °C)
- Current — 100 / 10 / 1 mA by range; ±0.1%
- Features — Auto-hold/auto-off; Rc/Rp lead checks
- Power — 8× AA; sealed enclosure
Typical applications
- Motor / transformer winding resistance.
- Bond / continuity of joints.
- Contact resistance checks.
Selection guide
- Spare lead set
- Quantity
- Carry strap
Common mistakes
- 2-wire instead of 4-wire.
- Over-temperature without cool-down.
- Energized circuit connection.
When to RFQ / what to tell us
- Quantity.
- Ship-to.
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Specs
| Spec | Value |
|---|---|
| SKU | 39116 |
| Brand | Amprobe |
| Model | MO-100 |
| Product type | Milliohmmeter |
| Type | Four-terminal portable milliohm meter (Amprobe MO-100) |
| Ranges | 200.0 mΩ to 2000 Ω (5 ranges); resolution to 100 µΩ |
| Accuracy | ±0.5% of reading ±2 digits (−15…55 °C with supplied leads) |
| Test current | 100 mA / 10 mA / 1 mA by range; ±0.1% current accuracy |
| Power | 8× AA; auto-hold / auto-off |
| Size | About 250×190×110 mm; ~1.5 kg |
Documents
FAQ
Q: Lowest resolution? A: 100 µΩ.
Q: Test currents? A: 100 mA, 10 mA, or 1 mA by range.
Q: What should I send for a quote? A: Quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Accuracy | ±0.5% of reading ±2 digits (−15 to 55 °C) with supplied leads |
| Measuring Ranges | 200.0 mΩ / 2,000 mΩ / 20.00 Ω / 200.0 Ω / 2,000 Ω |
| Resolution | 100 μΩ on lowest range |
| Test Currents | 100 mA / 10 mA / 1 mA by range; test-current accuracy ±0.1% |
| Method | Four-terminal Kelvin measurement |
| Max Output Voltage | 20 V (C1–C2) |
| Protection | 0.5 A HBC fuses on supply/current/voltage paths |
| Safety | IEC / EN 61010-1 |
| Dimensions | 250 × 190 × 110 mm (9.8 × 7.5 × 4.3 in) |
| Weight | 1,500 g (3.3 lb) |
| Power | 8 × 1.5 V AA |