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AC/DC MicroProbe Model K100 (4.5 A, 1mV/mA)

The K100 AC/DC microprobe reads currents as low as 100 µA DC (200 µA AC) up to 4 A peak — AC and DC — without breaking the circuit. No range switching. No mode toggling. No proprietary display. Clamp the conductor, plug the banana leads into any DMM, and read what your standard AC/DC clamp shrugged off as noise.

Most general-purpose AC/DC clamps bottom out somewhere in the milliamps. The K100 gets you roughly a hundred times lower — into the parasitic-draw, sleep-mode, and 4-20 mA loop territory where the readings actually matter.

Why the K100 Probe

  • Microamp-class sensitivity
  • True AC and DC in one probe
  • Non-intrusive 4-20 mA loop verification
  • Slim jaw for crowded wiring
  • Works with the devices you already own
  • Clean 1 mV per mA scaling

APPLICATIONS

  • WHERE THE K100 SHINES
    • Automotive Electronics - Parasitic draw testing
    • For diagnostic techs and vehicle engineers
    • Industrial & Process Control - 4-20 mA loop verification without breaking the circuit
    • For controls engineers and field service techs
  • ALSO WELL-SUITED FOR
    • Battery & Low-Power Electronics - Profile IoT and embedded device currents down to 100 µA.
    • EV & E-Mobility - low-current auxiliary work (12 V system parasitic draws, BMS sense-line diagnostics)
    • Electronics R&D & Test Labs - Benchtop current profiling with an DMM.
    • Energy & Renewables - Non-intrusive standby and low-string measurement on solar/PV systems.

Also serving: Avionics & Aerospace, Medical Devices, Data Centers, Defense, Marine, and Drones/UAS.

ALSO CONSIDER

Model K110 — If your work lives below 400 mA and you want higher output gain (10 mV/mA) for scope-ready waveform capture and better low-end resolution, look at the K110. Same slim jaw, same clamp-on approach — different output scaling for precision bench work.

Technical Hotline: (800) 343-1391 | www.aemc.com

Talk to an AEMC applications engineer about your measurement — free.

   

Check out the AEMC® Models K100 and K110 MicroProbes!

See how the AEMC® K100 and K110 AC/DC MicroProbes make microamp-level current measurements simple.

These advanced yet intuitive probes cover 4-20 mA loops, electronics, automotive parasitic draw, fault location, and more — all without interrupting the circuit!

Watch Now!
NOTE: Our complete catalog is not available for direct online purchase, refer to the Status Column for purchasing options. Items that do not have an Add to Cart button must be purchased from an Authorized Distributor.
Model Cat. # Description List Price Quantity/Status Distributor Stock Check
K100 1200.67 AC/DC MicroProbe Model K100 $995.00
ModelK100
Cat. #1200.67
DescriptionAC/DC MicroProbe Model K100
List Price$995.00

AC/DC MicroProbe Model K100 - Cat. #1200.67: Includes an electronic plug-in module with an attached current probe, 9 V battery, and user manual.

Print
TECHNICAL SPECIFICATIONS 1
Model  K100 K110
ELECTRICAL
AC Range (0 to 3) ARMS (0 to 300) mARMS
DC Range 0 to ± 4 A 0 to ± 400 mA
Output Signal 1 mV/mA 10 mV/mA
Resolution
Mfg. Before 04/01/24
DC: 50 µA typical
AC: 100 µA typical
Mfg.After 04/01/24
DC: 100 µA typical
AC: 200 µA typical		 Mfg.After 04/01/24
DC: 50 µA typical
AC: 150 µA typical
Typical Accuracy
Mfg. Before 04/01/24
DC: 1 % Reading ± 200 µA
AC: 2 % Reading ± 200 µA		 Mfg. Before 04/01/24
DC: (1 to 450) mA: 0.5 % Reading ± 150 µA
AC: 0.8 % Reading ± 300 µA
Mfg. After 04/01/24
DC: 1 mA to 2 A: 1 % Reading ± 300 µA
(2 to 4) A: 2 % Reading ± 500 µA
AC: 2 % Reading ± 500 µA		 Mfg. After 04/01/24
DC: (1 to 200) mA: 0.5 % Reading ± 150 µA
(200 to 400) mA: 1.5 % Reading ± 200 µA
AC: 1 % Reading ± 300 µA
Frequency Range / Bandwidth DC to 2 kHz DC to 1.2 kHz
MECHANICAL
Max Conductor Size Ø 0.18 in (4.5 mm)
Output Termination 4 mm safety banana plugs
POWER
Power Supply 9 V alkaline battery
Battery Life 20 h
SAFETY
Safety Rating 300 V CAT II
Ingress Protection IP40
COMPATIBILITY
Compatible Instruments DMMs, Oscilloscopes
Note 1: Refer to the user manual for complete technical specifications
Consult factory for NIST Calibration prices.

User Manuals

Models K100 and K110

Datasheets

Model K100 – English

Modelo K100 – Español

Brochures

AC/DC MicroProbe Models K100 and K110

Comparison Charts

Current Probe Selection Chart - English

Current Probe Selection Chart - Español

Application Notes

Glossary of Current Probe Terms

Technical Bulletins

Watts Current Issue 06

Applications - Graphic Illustrations

Power Distribution (Switchgear) - Current Probes

Manufacturing and Data Center Maintenance Testing - Current Probes

Power Distribution (Motor) - Current Probes

Data Centers

Videos

AC/DC Microamp Current Measurement Made Simple - The K100 and K110

Model Cat. # Description List Price Quantity/Status Distributor 
Stock Check
1017.45 Adapter - 4mm non-insulated for safety leads $20.50
2117.73 Pouch - Pouch – Replacement for Models 1026, 505, 566, 5212-5217, 5231, 5233, 6608, 6609, & 6610 (8.5 x 6.75 x2.7) inches $24.00
2118.09 Case – General Carrying Case — Dimensions: (13 x 9.5 x 3) in $77.25
2118.46 Adapter – Banana (Female) – BNC (Male) (XM-BB) 600V CAT III (Model SL306 only) $47.70
2119.02 Soft Carrying Pouch for Models (CA7024, CA7026, CA7027-28, 6522-24, 6526, 6532, 6534, 6536, 6528-29, 5212, 5215, 5217, 5231, 5233, 3290-91, 3292-93B, 3292-93B-BT)
Dimensions: (7.75 x 9.25 x 2.75) in 		$52.90
5000.99 Clip - Safety Alligator - Black (1000 V CAT IV, 15 A, UL V2) $12.50
5100.00 Clip - Safety Alligator - Red (1000V CAT IV, 15A, UL V2) $12.50
5100.04 Clip - Safety Alligator - Blue (1000 V CAT IV, 15 A, UL V2) $12.50
5100.05 Clip - Safety Alligator - White (1000 V CAT IV, 15 A, UL) $12.50
Model
Cat. #1017.45
DescriptionAdapter - 4mm non-insulated for safety leads
List Price$20.50
Model
Cat. #2117.73
DescriptionPouch - Pouch – Replacement for Models 1026, 505, 566, 5212-5217, 5231, 5233, 6608, 6609, & 6610 (8.5 x 6.75 x2.7) inches
List Price$24.00
Model
Cat. #2118.09
DescriptionCase – General Carrying Case — Dimensions: (13 x 9.5 x 3) in
List Price$77.25
Model
Cat. #2118.46
DescriptionAdapter – Banana (Female) – BNC (Male) (XM-BB) 600V CAT III (Model SL306 only)
List Price$47.70
Model
Cat. #2119.02
DescriptionSoft Carrying Pouch for Models (CA7024, CA7026, CA7027-28, 6522-24, 6526, 6532, 6534, 6536, 6528-29, 5212, 5215, 5217, 5231, 5233, 3290-91, 3292-93B, 3292-93B-BT)
Dimensions: (7.75 x 9.25 x 2.75) in
List Price$52.90
Model
Cat. #5000.99
DescriptionClip - Safety Alligator - Black (1000 V CAT IV, 15 A, UL V2)
List Price$12.50
Model
Cat. #5100.00
DescriptionClip - Safety Alligator - Red (1000V CAT IV, 15A, UL V2)
List Price$12.50
Model
Cat. #5100.04
DescriptionClip - Safety Alligator - Blue (1000 V CAT IV, 15 A, UL V2)
List Price$12.50
Model
Cat. #5100.05
DescriptionClip - Safety Alligator - White (1000 V CAT IV, 15 A, UL)
List Price$12.50

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