Arizona Integrated Technology, Inc.

High Precision Digital 1A Micro-ohmmeter Model:DRM-1A

The DRM-1A™ is a lightweight and portable micro-ohmmeter designed to measure very low resistances from 1 μΩ to 200 Ω. It is the most accurate in its category.

The DRM-1ATM uses a four-pin resistance measu- rement system which consists of injecting a current with two cables connected at each end of the joint to be tested. Then, the cables are installed which allow reading the voltage on each side of the part to be tested in order to measure the resistance. This eliminates any uncertainty linked to resistance of the contacts. The instrument is equipped with a microprocessor which eliminates gaps and parasite voltages. Thanks to its unique filtering system, the DRM-1ATM can be used in spite of the presence of intense magnetic fields.


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• Much lighter and handier than other equip- ment in its category
• Shock resistant, it is suitable for all types of applications: work site or laboratory
• The LCD display is equipped with a backlight to allow work in any conditions
• Weak current injection for applications that require small measurement contacts
• Many accessories are available for your application such as measurements on very small surfaces


• Quality control of smelting parts
• Control of mechanical joints and high voltage welded joints
• Control of electrodes for aluminum plants
• Inspection of contacts, circuit breakers and power fuses


• Uses the four point measuring method
• Automatic current adjustment from 5mA to 1A
• Automatic stop mechanism of the instrument after 2 min. in idle mode
• Automatic stop mechanism of the backlighting system after 30 seconds
• The LCD (Liquid Crystal Display) displays the results in letters that are easy to read
• A set of standard connecting cables with alligator clips comes with the instrument

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