Amprobe AC40C 400 A Mini-Clamp Digital Multimeter

  • Mini-clamp digital multimeter
  • 400 A range
  • 10 mA resolution
  • 600 V AC and DC range
  • 4000-count display
  • Autoranging
  • Data hold
  • Auto-off
  • NCV function (non-contact voltage detection)
(10 customer reviews)


Product Highlights

The Amprobe AC40C digital multimeter won’t take much space in your tool kit and offers quick and accurate measurements.


AC Voltage 400.0 V, 600 V
DC Voltage 400.0 V, 600 V
AC Current 40.00 A, 400.0 A
DC Current
Resistance 400 O
Accommodates conductors up to 1.0 (25 mm) in diameter
Display 3-3/4 digit LCD (max reading 3999)
Overrange indication OL indicated
Low battery indication Battery symbol appears when battery power is low
Power supply Two (2) 1.5 V AA batteries
Maximum jaw opening 25.4 mm (1.0 in)


What’s Included

  • AC40C
  • Carrying case
  • Batteries (installed)
  • Test leads


Datasheet »

10 reviews for Amprobe AC40C 400 A Mini-Clamp Digital Multimeter

  1. RickH

    Great Product

    very easy to use, compact size for easy storage, accurate and reliable!
    Highly recomended

    ✔ Yes, I recommend this product.

  2. Goldburg

    always dependable

    having owned Amprobe products for over 30 years, i can say that dependability and accuracy are superb. only issue i have had with them is self inflicted. As in- dropping from a boom lift, run over by trucks cuz they were left out. these scenarios are always good for a new meter in the tool box! Otherwise, i am sure i would still own my 30 year old analog meter. great stuff!

    ✔ Yes, I recommend this product.

  3. Rene

    Reliable tool

    This is a reliable, small and economical tool. I relly recommend.
    I bought one around 5 years ago and never need maintenance.
    Always is ready to work.
    Have excellent relation price / valor.

    ✔ Yes, I recommend this product.

  4. Rick

    Excellent reliable test tool is always in my toolbox.

    None better. Compact & durable (yes, it has been dropped several times) one hand operation, takes up very little space in my tool box. Very accurate and relilable. Long battery life.
    I only wish I bought the swivel model.

    ✔ Yes, I recommend this product.

  5. Clay

    Reliable and trustworthy!

    This meter is user friendly, accurate and reliable…. Clamps around wires which provides accurate readings and gives the user ease at reading.

    ✔ Yes, I recommend this product.

  6. BobB

    Great amp probe! Easy one hand use!

    We do a lot of troble shooting of A/C circuits and this tool is a great addition to the tool box!!

    ✔ Yes, I recommend this product.

  7. GUS420

    Easy to use

    This clamp on meter is great for putting in a small tool bag. I am in the HVAC business and this meter is all I need to carry. I can check power and also take amp readings. A++

    ✔ Yes, I recommend this product.

  8. btaylor

    great basic meter

    great just amp meter ease of use great addition to my tool bag

    ✔ Yes, I recommend this product.

  9. rt207

    Nice that it allows excess to tight or close places.

    Though, I use that regular size amp-clamp meters. This mini-clamp insturment comes in very handlely in areas where the boxes, troughs, panels, load centers may have a bundle of conductors that a standard or normal size device may have difficulty having access to.
    With this smaller amp-clamp you are able to take hold of the conductor you are attemping to get a read on and be able to get the clamp open and shut without distrubing the other conductors. It is a very useful tool.

    ✔ Yes, I recommend this product.

  10. Rich

    A compact multimeter with full size features.

    The 400A Mini-Clamp Digital Multimeter has the right features to perform the typical daily tasks when servicing light commercial and resedential electrical commodities. Trouble shooting and servicing become the simplist part of a job with the Amprobe AC40C.

    ✔ Yes, I recommend this product.

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