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Extech
Extech UM200 High Resolution Micro-Ohm Meter
Quote on request
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UM200: 1 µΩ res; to 6 kΩ; 10 A Kelvin; 3000 stores. RFQ kit.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Accuracy
+/-(0.25% + offset) on low ranges; +/-(0.75% + 3 ohm) on 6 kohm
Display
5-digit backlit LCD; auto/manual ranging
Measurement Type
4-wire Kelvin micro-ohm
Resolution
to 1 uohm
Ranges
60 mohm, 600 mohm, 6 ohm, 60 ohm, 600 ohm, 6 kohm (6 ranges with sub-ranges)
Max Test Current
10 A
Fits precision low-resistance checks where you need an Extech UM200—Kelvin 4-wire measurement down to 1 µΩ resolution, ranges to 6 kΩ, and up to 10 A test current with store/recall of 3,000 readings.
Key advantages
- Resolution — Down to 1 µΩ
- Range — About 400 µΩ to 6 kΩ across 6 current bands
- Current — Up to 10 A
- Accuracy — ±(0.25% + offset) typical on main ranges
- Memory — 3,000 measurements; Hi/Lo comparator 20 sets
Typical applications
- Bond / joint resistance.
- Cable / busbar checks.
- Inductive and resistive material tests.
Selection guide
- Kelvin lead set
- NIST option
- PC software need
Common mistakes
- 2-wire instead of Kelvin.
- Testing energized circuits.
- Ignoring inductive vs resistive mode.
When to RFQ / what to tell us
- Kit/leads, NIST option.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 35454 |
| Brand | Extech |
| Model | UM200 |
| Product type | Micro-Ohmmeter |
| Type | Precision Kelvin micro-ohmmeter (Extech UM200) |
| Range | About 400 µΩ to 6 kΩ (6 current ranges) |
| Resolution | Down to 1 µΩ (10 A range) |
| Accuracy | ±(0.25% + offset) typical on main ranges; 100 µA band ±(0.75% + 3 Ω) |
| Test current | Up to 10 A |
| Memory | Store/recall up to 3,000 measurements; Hi/Lo comparator 20 sets |
| Power | Rechargeable Li-polymer |
Documents
FAQ
Q: Max current? A: 10 A.
Q: Resolution? A: 1 µΩ on the lowest band.
Q: What should I send for a quote? A: Kit options, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Accuracy | +/-(0.25% + offset) on low ranges; +/-(0.75% + 3 ohm) on 6 kohm |
| Display | 5-digit backlit LCD; auto/manual ranging |
| Measurement Type | 4-wire Kelvin micro-ohm |
| Resolution | to 1 uohm |
| Ranges | 60 mohm, 600 mohm, 6 ohm, 60 ohm, 600 ohm, 6 kohm (6 ranges with sub-ranges) |
| Max Test Current | 10 A |
| Memory | Store/Recall up to 3000 measurements; Hi/Lo comparator with 20 prestored sets |
| Functions | Cable length measurement (ft/m); PC interface (USB/software) |
| Power | Rechargeable Li-Polymer battery + AC adapter/charger |
| Dimensions | 10.1 x 6.1 x 2.2 in (257 x 155 x 57 mm); 2.6 lb (1160 g) |
| Form Factor | Portable high-resolution micro-ohmmeter |
| Family | Extech UM200 |