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R1L-E2A/SKP-8 Portable Bond Meter


Intrinsically Safe Milli-Ohmmeter and Bond Meter, 10 µΩ to 20 Ω, Includes "SKP-8" Probes

The Model R1L-E2A is an electrical bonding meter and milli-ohmmeter certified to ATEX, UL and CSA intrinsically safe standards.  It is used on the Lockheed F-35 Joint Strike Fighter and C-130 Hercules airframes as well as the Sikorsky S-70, S-92 and Seahawk helicopters to test electrical bonds on antenna installations, electrical safety grounds and lighting protection systems.

A rugged heavy-duty plastic case is provided to contain and protect the instrument. When closed, a gasket seals the lid to keep out water and dirt when the Model R1L-E2A is transported through rain or other environmentally hostile conditions. When the lid is open, a second gasket provides a seal for the front panel, and all panel openings are sealed to prevent water entry, as is the removable battery cover.

Two different styles of 4-wire Kelvin probes are available to adapt to the physical conditions.  Both the large HTP-101A pistol grip Kelvin probes and the smaller SKP-8 hand probes are designed with static dissipating properties and are an integral part of the intrinsic safety system.  The SKP-8 Kelvin probes have a choice of replaceable tips to further accommodate the work requirements.

The Model R1L-E2A is battery powered by three internal heavy-duty alkaline “D” cells. Front panel controls include a POWER ON-OFF switch and a rotary range selector switch. Five resistance ranges are provided from 2 mΩ to 20 Ω.



  • Portable: Long Battery Life (80 Hrs) 
  • Ranges: 2 mΩ to 20Ω
  • Accuracy: 0.25% of reading
  • Resolution: 1 µΩ
  • Milli-Ohmmeter & Bond Meter Certifications: ATEX Ex ia IIA T4 Ga and C-UL-US Listed Class I, Div. 1, Group D in compliance with ANSI/UL 913-1988, Fifth edition, 21 February, 1997
  • Simple Operation
  • Offset Compensation
  • Backlit Display
  • 3-year warranty
  • Assembled in USA 


  • Designed for continuous use in the presence of flammable gases, vapors, and mists
  • Unit includes instrument and test probes inside rugged carry case


Accuracy: ±(0.1% rdg + 2 cnt)
Connector Type: Banana
Datalogging: No
Intrinsically Safe: Yes
Max. Resolution: 1 µΩ
Maximum Test Current: 1.3 A
Measurement Range: 1 µΩ to 20 Ω
Operating Temperature (°C): -20 to 50 ⁰C

Stock Check

Model Number
Connector Type Datalogging Intrinsically Safe Maximum Test Current Measurement Range Buy
R1L-E2A/SKP-8 Active, Contact Us
Intrinsically Safe Microohm and Bond Meter, 10 µΩ to 20 Ω, Includes "SKP-8" Probes
Banana No Yes 1.3 A 1 µΩ to 20 Ω Buy


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