High precision digital 10A micro-ohmmeter


The DRM-10A™ is a lightweight and portable micro-ohmmeter designed to measure very low resistances from 0.01 μΩ to 200 Ω. It is the most accurate in its category.



  • Much lighter and handier than other equipment 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 exothermic welding (Cadweld®), measurements on very small surfaces.



Cadweld Probe

Test Cadweld exothermic welding using ndb’s Cadweld probe. Its unique design allows for constant and precise measurements. 

Part number: DRM-4012

Length: 122 cm / 48 inches

Replacement tips: DRM-4040

Double Hands Probe

Kelvin type dual hands probe with storage covers.

Part number: DRM-4015

Length: 122 cm / 48 inches

Replacement tips: DRM-4040

Double Hands Probe Heavy Duty

Kelvin type dual hands probe with storage covers.

Part number: LRM-4015HD

Length: 122 cm / 48 inches

Replacement tips: DRM-4040

Elbow Test

Test cable elbows with the GET-ELBOW accessory and your DRM/LRM micro-ohmmeter.

Part number: GET-ELBOW

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Reference Resistance

Validate your DRM/LRM instrument right before starting a job.

Part number: DRM-4013

Resistance: 9.5 micro-ohm

Protective Bag

Protect your DRM/LRM instrument with this rugged nylon protective bag. Its strap allows for convenient hands-free operation. Micro-ohmmeter sold separately.

Part number: DRM-4014

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Battery Charger

Replacement battery charger for DRM/LRM. Plug adapter(s) must be selected.

Part number: DRM-PACK-UNI

Input: 100-240V 50-60Hz

Replacement Tips Kit

Replace dulled tips for DRM-4015, LRM-4015HD or DRM-4012. Use a simple pair of long-nose pliers to remove the dulled tips and install new ones.

Part number: DRM-4040

A quantity of 1 gives 4 tips.

2MM Adapter

Adapt your DRM-4015 or LRM-4015HD probes with fine tips with 2mm.

Part number: DRM-4015-2MM

A quantity of 1 gives 1 adapter (not sold as a pair).

Personal Ground Tester

The GET-40™ device is an easy-to-use and accurate Grounding Jumper Tester using four points measuring method. It is compatible with any of our DRM/LRM micro-ohmmeter instrument. Micro-ohmmeter sold separately.

Part number: GET-40

Contact ndb Technologies.

Hard Shell Case

Hard shell transportation case for DRM/LRM micro-ohmmeter.

Part number: BOX-75.

External dimensions: 46x35x18 cm / 18x14x7 inches

Replacement Battery Kit

Replace depleted batteries with this specially matched and tested batteries. Your DRM/LRM instrument is designed for this model.

Part number: DRM-BAT

Pack of 6 NiMH batteries.

Contact us

Contact us by email

Business days

Monday to Friday, 8:00 to 17:00 

Eastern Time Canada

ndb Technologies

1405-111 ave. St-Jean-Baptiste

Quebec city, Qc

G2E 5K2, Canada

Contact us

1 (418) 877 7701

1 (418) 877 7787