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720A Intrinsically Safe Bond Meter / Milli-Ohmmeter


Superior accuracy, 100-hour battery life, and a 3-year warranty

TRUST is an essential feature in any measurement tool and TEGAM’s new 700 Series bond meters and milli-ohmmeters are instruments you can rely on every day with confidence. These new models are designed with the clearest and most informative displays for mistake-free measurements. They quickly produce accurate readings to reduce the time spent measuring.

TEGAM Bond Meters for Your Industry

  • Aerospace: Verify mechanical and electrical bonds for safety, conductivity, mechanical integrity, RF shielding and lightning protection. TEGAM is the largest provider of bond meters/milli-ohmmeters to the US Armed Forces.
  • Alternative Energy: Solar arrays and wind turbines are prone to lightning strikes. The integrity of their grounds must be maintained and restored after an event. A small increase in the resistance translates into a dangerous voltage when thousands of amps are flowing.
  • Automotive: Battery Electric Vehicles contain many high current interconnections and over current protection. Verifying the low resistance is essential to preventing fires and poor performance. Conventional ICE engines also rely on many electric systems that are verified with TEGAM instruments.
  • Electronics: Validate circuit board elements and traces with low resistance measurements that can detect thin or undersized conductors. Check connections and current limiting resistors in situ.
  • Electrical Systems: The 710A milli-ohmmeter is sensitive enough to detect loose bus bars, damaged shunts, failing fuses and poor cable terminations.

4-WIRE PROBES are often more important than the instrument. No one has a wider range of configurations to meet and adapt to your needs. From tight spacing to piercing paint, we have a tip configuration to make your job easier. The dual connector system permits a Kelvin Clip on one lead for secure ground connection while the ergonomic tri-shape probe on the second lead can be used for accessing multiple points with one hand. Designed for one-handed operation, these tools are comfortable to carry and use for extended periods of time.

Like all TEGAM products, the 700 Series bond meters and milli-ohmmeters are designed, assembled and tested in the United States.  TEGAM backs this durable instrument with a 3-year warranty to assure you that your investment is sound.



  • Bond Meter Accuracy: ±(0.2% Reading + 0.02 Range), 18 to 28°C
  • Temperature Range : -10 to 55 °C / 14 to 131°F
  • Reading Rate: 3 Readings per second
  • Connector Type : M12
  • Battery: 3AA
  • 100 Hour Battery Life
  • 4-digit Auto-Ranging with Backlight and Function Annunciators
  • Three-Year Parts & Workmanship Warranty
  • Included Accessories: 3AA Batteries, Quick Start Guide, Certificate of Traceability
  • Optional Accessories: Foam-Filled Hard Carry Case, SureGrip Cover, Tilt Stand / Magnetic / Hanger
  • CE, Complies with 47 CFR Part 15 of the FCC rules, Class B
  • Assembled in the USA
  • Handheld Bond Meter for Hazardous Locations Only as to Intrinsic Safety
    • Ex ia IIA T4 Ga Class I, Division 1, Group D, T4 Class I, Zone 0 AEx ia IIA T4 Ga Zone 0 Ex ia IIA T4 Ga
    • UL 21 ATEX 2549 IECEx UL 21.0038 -10 °C ≤ Ta ≤ +55 °C


  • Designed for continuous use in teh presence of flammable liquids, gases, and ,isted worldwide
  • Superior accuracy for use in the most demanding measurement applications
  • Accuracy remains consistent over the entire operating range
  • Smallest and lightest handheld bond meter make it easy to use in tight or hard-to-reach situations
  • 100-hour battery life and convenient replacement options means these maters are always ready
  • Backlit display allows measurements to be read in poorly lit locations
  • Supported by a wide range of test probe and tip styles


Accuracy: ±(0.2% rdg + 0.02% rng)
Connector Type: M12
Datalogging: No
Intrinsically Safe: Yes
Max. Resolution: 1 µΩ
Maximum Test Current: 100 mA
Measurement Range: 1 µΩ to 100 Ω
Operating Temperature (°C): -10 to 55 ⁰C
All Specifications Collapse Specifications

Stock Check

Model Number
Connector Type Datalogging Intrinsically Safe Maximum Test Current Measurement Range Buy
720A Active, Contact Us
Handheld Bond Meter, Intrinsically Safe
M12 No Yes 100 mA 1 µΩ to 100 Ω Buy
OPT-700-17025 Active, Contact Us
17025 Calibration Option 700 Bondmeter Series

Accessories Stock Check

Tilt Stand / Hanger Strap/Magnet, Intrinsically Safe
Foam-Filled Spark-proof Plastic Carry Case, Intrinsically Safe

Foam-filled hard carry case is made with a spark-proof resin. This case is an optional accessory for the TEGAM 720A Intrinsically Safe Bond Meter and IS probes. (Note: instrument and probes shown in picture are not included).
The case has a place for your handheld instrument, probes, and additional batteries.

SureGrip Cover, Intrinsically Safe

TEGAM’s SureGrip Cover is designed for a more secure grip to prevent instrument damage from dropping, and possesses elastic properties from non-silicone elastomer which also protect airframes and vehicles from tooling damage due to accidental impacts.
The SureGrip Cover fits our 700 Series Bond Meters and 900 Series Digital Thermometers.& Calibrators

Iso 17025 Calibration Option, 700 Series Bond Meters

Bond Meter Accessories

Bond Meter Accessories


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Technical Documentation



Our worldwide service centers provide fast cycle times, use only AE-qualified parts, and follow the original product's specifications and test procedures for the highest quality repair or calibration.

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Advanced Energy has the tools and processes to ensure your equipment continues to meet its original specifications.  Our products are calibrated at global AE service sites with proprietary technology designed to exceed industry standards​.

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