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Vanguard Micro-Ohmmeters – The right choice for Low Resistance Testing

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Regular testing of electrical equipment can lead to the early discovery of internal problems, therefore allowing the electrical components to be reconditioned, avoiding future problems.

For a reliable MicroOhmmeter, consider the Vanguard Micro-Ohmmeters available for rent, lease or purchase from Protec today. 

Vanguard_Auto-Ohm100The Vanguard Auto-Ohm 100 Ampere Micro-Ohmmeter features microprocessor-controlled measuring of very low resistances ranging from 1 micro-ohm to 300 milli-ohms with high accuracy.

The Vanguard Auto-Ohm 100 is field-portable, rugged, and easily operated by first-time users having a minimum of training.




Vanguard_220s3The Auto-Ohm-200 S3 Ampere Micro-Ohmmeter is Vanguard’s fourth generation, microprocessor-based, true DC micro-ohmmeter. It is designed for testing EHV circuit-breaker contact resistances, bushing contact joints, welding joints, or for any low-resistance measuring application.

This high current and very lightweight (16.8 lbs/ 7.6 Kg) micro-ohmmeter is designed to meet the IEEE C57.09-1999 (5.15) requirement for testing circuit breaker contact resistance.


With offices located in Texas, Illinois and New Jersey, each offering a full stocks of electrical test and measurement equipment, Protec can better serve your needs. 

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