4176 Precision Micro-Ohmmeter


Best-selling Valhalla 4176 ohmmeter measures transformers, coils, and shunts the competition can’t.  The 4176 provides ultra-stable low-resistance measurements.

  • 7 Ranges from 20mΩ to 20kΩ
  • 1µΩ Resolution
  • Auto Ranging Mode
  • VFD Display with Adjustable Intensity
  • Four Terminal Kelvin Connections
  • RS-232 Interface Standard
  • Automatic Temperature Compensation
  • Internal HI-LO Comparator
  • Run/Hold and Peak Detector
  • Print/Log Function

Choose Your Level of Service

Our standard 1-year parts & labor warranty is included with every new instrument order and can be extended up to 3 years. For those seeking a higher service level with unlimited repairs, replacements, VIP turnaround, and free Z540.1 annual calibration, add a TrueCare Unlimited Support package to your order instrument tnow, so you'll be fully protected from day one.

12 months of warranty protection covering any factory-originated damage or malfunction. Covers all parts and labor costs.

With Valhalla Scientific’s new TotalCare Unlimited instrument service, you get so much more than a typical warranty. For less than the price of a standalone repair and calibration, you can have unlimited repairs. And replacements. And we’ll even install free component upgrades whenever they’re available. Best of all? You pay one one low price - and only once. For the rest of the year, you can relax knowing your Valhalla Scientific instrument is covered, calibrated, and protected. No matter what.

Total instrument protection including unlimited repairs, replacements, and calibrations.

Product price: $4,840
Total options:
Order total:
SKU: 4176 Category:

The Best in Accuracy, Precision, and Ease of Use

4176 Programmable Digital Micro-Ohmmeter

Extraordinary Features

With a basic accuracy of 0.04%, this model allows measurements from 1uΩ to 30kΩ. The seven ranges can be activated manually or through the Auto-Range feature.

For optimal accuracy, connections to the load are made via a four-wire Kelvin binding post terminal that can accept banana plugs, spade lug or wires.

  • 7 Measurement Ranges from 20mΩ to 30KΩ
  • 1uΩ Resolution on lowest range
  • 10uA – 1A Constant Test Current
  • 0.04% Basic Accuracy
  • Four Terminal Kelvin Connections
  • Auto-Ranging Mode
  • Selectable Display Rate (100ms-to-500ms)
  • VFD Display w/Adjustable Intensity
  • RS-232 Serial Interface
  • Programmable Temperature compensation
  • Built-In Limit Comparator w/Visual-Acoustic Indications and Rear Panel Relay Terminals
  • Run/Hold w/Peak Detector
  • Print/Log Function

Automatic Temperature Compensation

Reduce Errors, Improve Productivity, and Expand Possibilities

The 4176 Micro-Ohmmeter was designed to satisfy applications where temperature compensation is mandatory. The resistance of component material such as copper, aluminum, etc., varies greatly with variations in ambient temperature. The Valhalla TCM feature allows these measurements to be accurately made and referenced to a selected temperature point of interest, e.g., 20°C. With just one temperature sensor (the Omni-Temperature-Compensator), the instrument can be programmed to compensate for any temperature coefficient and to any temperature reference. The instrument not only will display the compensated value of your load, but also the non-compensated value and the real-time ambient temperature of the immediate area.

Hi-Lo Comparator Reduces Human Error Automatically

Using the 4176 HLC mode (Hi-Lo Limit Resistance Comparator) can save you time and mistakes caused by human error. Once you set your limits, three front panel LEDs allow a visual go/no-go view of the result, a beeper gives an alerts when limits are exceeded, and a rear panel relay closure screw terminal block can be used to implement an automated batch sorting system for components or products, operate counters, custom sound alarms or shut off a process.


A Run/Hold function is also a standard feature of the 4176. The user can also program this function as a peak Hi or peak Low detector. Measurements may be printed or logged and viewed in a spread sheet by using the Print/Log feature also standard.


Full Scale
Test Current
(± % reading ± % range)
TCM Mode Accuracy
(± % reading ± % range ± % ΔT)
20mΩ 20.000mΩ 1µΩ 1A ±0.02 ±0.02 ±0.002%/°C ±0.02 ±0.07 ±0.001
0.2Ω .30000Ω 10µΩ 1A ±0.02 ±0.02 ±0.002%/°C ±0.02 ±0.07 ±0.001
3.0000Ω 100µΩ 100mA ±0.02 ±0.02 ±0.002%/°C ±0.02 ±0.07 ±0.001
20Ω 30.000Ω 1mΩ 10mA ±0.02 ±0.02 ±0.002%/°C ±0.02 ±0.07 ±0.001
200Ω 300.00Ω 10mΩ 1mA ±0.02 ±0.02 ±0.002%/°C ±0.02 ±0.07 ±0.001
2kΩ 3.0000kΩ 100mΩ 100µA ±0.02 ±0.02 ±0.002%/°C ±0.02 ±0.07 ±0.001
20kΩ 30.000kΩ 10µA ±0.02 ±0.02 ±0.002%/°C ±0.02 ±0.07 ±0.001
General Specifications
Display Type:  5 digit VFD
Overload Indication: Flashes OVERLOAD
Conversion Rate: 45 readings per second
Terminal Configuration: 4-Wire Kelvin
Current Source Compl. Voltage: 5V Minimum
Test Current Polarity: Positive (flows High to Low)
Power Requirements: 115VAC or 230VAC ±10%
Operating Temp. Range: 0°C to 50°C
Storage Temp. Range: -40°C to 85°C
Humidity: 80% RH max @ 40°C (non-condensing)
Physical Specifications
Width:  17” / 43cm
Depth: 11.5” / 29.5cm
Height: 4” /10cm
Weight: 13lbs / 5.9 kg net;


Full Scale
Test Current
Accuracy (± % reading ± % range)
Temperature Coefficient
TCM Mode Accuracy (± % reading ± % range ± % ΔT)
20mΩ 20.000mΩ 1µΩ 1A ±0.02 ±0.02 ±0.002%/°C ±0.02 ±0.07 ±0.001
0.2Ω .30000Ω 10µΩ 1A ±0.02 ±0.02 ±0.002%/°C ±0.02 ±0.07 ±0.001
3.0000Ω 100µΩ 100mA ±0.02 ±0.02 ±0.002%/°C ±0.02 ±0.07 ±0.001
20Ω 30.000Ω 1mΩ 10mA ±0.02 ±0.02 ±0.002%/°C ±0.02 ±0.07 ±0.001
200Ω 300.00Ω 10mΩ 1mA ±0.02 ±0.02 ±0.002%/°C ±0.02 ±0.07 ±0.001
2kΩ 3.0000kΩ 100mΩ 100µA ±0.02 ±0.02 ±0.002%/°C ±0.02 ±0.07 ±0.001
20kΩ 30.000kΩ 10µA ±0.02 ±0.02 ±0.002%/°C ±0.02 ±0.07 ±0.001


Instrument Accessories

Maximize Your Instrument’s Performance with Certified-Compatible Cables, Leads, Connectors, & More

We recommend the accessories below for your instrument.  Each has been specifically designed and configured for top performance with our precision instruments.

Documents & Downloads

Here you can download the documentation relevant to your instrument. This section will be continually updated as more media is added (tutorials, demos, etc).

Manual and Specifications

What’s Included

All instrument orders include the following:

13-Month Comprehensive Instrument Warranty

All pre-paid orders include 13-month instrument warranty that covers component and labor costs in the event of needed repair or recalibration.

Certificate of Calibration

A fully-documented NIST-traceable Z540 certificate of calibration is included with your instrument.

Unlimited Phone & Email Support

Our engineering, sales, and customer support teams are always available to answer questions, walk you through particular product features, and assist with any issue that may arise.

Required Power Supply/Battery Pack

Unless you select a different option, every instrument ships with the cables and power supplies required to operate.

All Instrument Documentation

Includes user manual, calibration procedures, specifications, and any relevant materials.

Quick Contact

Use this form to quickly configure and request a formal quote from our sales department. You may always reach us at 800-548-9806 if you'd like immediate assistance.
  • This field is for validation purposes and should be left unchanged.