4.8 out of 5 stars with 45 reviews

Extech 380580 Battery Powered Milliohm Meter

List Price

$~~549.00~~

Our Price

$532.53

Savings

3% OFF

* Pricing Information Updated Less Then A Minute Ago

Battery Powered Milliohm Meter

Battery operated to facilitate in-the-field use, Extech's 380580 Milliohm Meter provides five resistance ranges with resolution as low as 0.1 milliohms, and the 4-wire Kelvin clip connection provides optimum accuracy. Typical applications include transformer, motor coil, and PC board resistance measurements.

Additional Features

Measurements are displayed on a large, 2000 count LCD. Additional features include over-temperature and over-voltage protection, Auto-Hold, Auto power off, and invalid test indicators to prevent inaccurate measurement.

What's in the Box

Unit is housed in a built-in water resistant case and comes with eight AA batteries, two sets of test leads (4-wire with four alligator clips and 4-wire with two Kelvin alligator clips), and user manual.

What is a MilliOhm?

The units of measure for resistances less than 1 Ohm (Î©) are Milli- (mÎ©) and Micro-(Î¼Î©)Ohms. One MilliOhm (1mÎ©) is equal to one thousandth of an ohm (0.001). One MicroOhm (1Î¼Î©) is equal to one millionth of an ohm (0.000001). For example, 0.5 ohms (one half an ohm) is equal to 500mÎ©.

Why are 4-wire connections required when making milliohm measurements?

Test leads always introduce a small amount of additional resistance into a measurement. This is acceptable in non-critical measurements such as megohm resistances. However, when measuring milliohms in a critical application, any additional resistance can render the measurement useless. This is why 4-wire (Kelvin) connections are imperative.

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380562 220-Volt High Resolution Precision Milliohm Meter

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