Digital Ohm Meter & Micro Ohm Meter

Precision Low-Resistance Measurement Equipment with 4-Wire Kelvin Technology

Premier Digital Ohm Meter and Micro Ohm Meter

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Accurate Low-Resistance Measurement Instruments

Premier Electrosystems manufactures Digital Ohm Meters, Micro Ohm Meters, Milli Ohm Meters, and high-precision resistance measurement instruments designed specifically for industrial, laboratory, maintenance, and quality-control applications.

Utilizing advanced 4-wire Kelvin measurement technology, our instruments eliminate lead resistance errors to provide highly accurate testing of transformer windings, motor windings, electrical contacts, cables, busbars, and other low-resistance electrical components.

Need Custom Test Ranges? Premier Electrosystems manufactures tailored resistance meters with high thermal stability and custom current ranges suited for high-inductance load testing.

Key Features & Highlights

4-Wire Kelvin Method: Eliminates lead resistance and contact resistance errors completely.
High Resolution: Provides measurement resolution down to 1 microohm (1 µΩ).
Inductive Load Stability: Excellent stability with motors, transformers, and heavy inductive loads.
Max Test Current: Standard test current output up to 1 Amp for stable low-value readings.
Rugged & Compact: Microcontroller-based design built for harsh shop floor environments.
High Repeatability: Superior accuracy and long-term measurement consistency.

Applications

  • Transformer, motor, and generator winding resistance testing
  • Cable, wire, and busbar resistance measurement
  • Contact resistance testing of switches, circuit breakers, relays, and contactors
  • Connector, terminal, and industrial-heater resistance testing
  • Preventive electrical maintenance and quality assurance audits

Technical Specifications

Measurement Ranges & Resolutions

Measurement Range Resolution
1999 µΩ1 µΩ
1.999 mΩ1 µΩ
19.99 mΩ10 µΩ
199.9 mΩ0.1 mΩ
1999.9 mΩ1 mΩ
1.999 Ω1 mΩ
19.99 Ω10 mΩ
199.9 Ω0.1 Ω
1999.9 Ω1 Ω
19.99 kΩ10 Ω

General Specifications

Display3½ digit red LED display
Accuracy±0.1% ±1 count
Maximum Test Current1 Amp
Operating Temperature5°C to 55°C
HumidityUp to 85% RH, non-condensing
Power Supply230 V AC ±10%, 50 Hz

Industries Served

Transformer & Motor Manufacturing Cable & Wire Industry Switchgear & Electrical Panels Industrial Maintenance & Repair Testing Labs & R&D Centers

Product Video Demonstration

Watch how resistance measurement is performed accurately using Premier's Digital Ohm Meter and Micro Ohm Meter.

Frequently Asked Questions

A Micro Ohm Meter is a specialized electrical instrument designed to measure very low resistance values accurately (down to micro-ohms), which standard multimeters cannot reliably detect.

Kelvin 4-wire measurement separates current leads from voltage-sensing leads. This eliminates lead-resistance and contact-resistance errors from the measurement result, enabling ultra-precise low-resistance readings.

Yes. It is engineered with high measurement stability specifically suited for transformer and motor winding resistance testing, routine quality control, and field maintenance.

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