Amprobe ACDC-400 AC/DC 400 A Digital Clamp Multimeter

(7 customer reviews)

  • Measures AC/DC current to 400 A and AC/DC voltage to 600 V, and resistance
  • Continuity beeper quickly identifies shorts and opens
  • Data hold captures the reading on the display for further analysis
  • MIN/MAX recording records min/max measurements over time to show voltage fluctuations
  • Relative zero mode displays the difference between the actual reading and a stored reference value and may be used with any function or range
  • Combines user friendly features such as a large, easy to read backlit digital and analog display, auto or manual range selection, and low battery indicator
  • Accommodates conductors up to 1.18″ (30 mm) in diameter


The full featured ACDC-400 digital clamp multimeter provides a broad set of measurement capabilities to meet the needs of facility maintenance and field service professionals.

It combines the features of an AC/DC current clamp meter, voltage meter and electrical multimeter in a single tool. Use it to measure AC/DC current and AC/DC voltage, along with resistance, continuity, min/max, and relative measurements. Its large backlit LCD display, with digital and analog readings, makes it easy to read results in various lighting conditions.


AC Voltage 400.0 mV, 4.000 V, 40.00 V, 400.0 V, 600 V
DC Voltage 400.0 mV, 4.000 V, 40.00 V, 400.0 V, 600 V
AC Current 40.00 A, 400.0 A
DC Current 400 A
Resistance 400.0 O, 4.000 kO, 40.00 kO, 400.0 kO, 4.000 MO, 40.00 MO
Accommodates conductors Up to 1.18″ (30 mm) in diameter
DC Voltage 400.0 mV/4.000/40.00/400.0/600 V ±(1.0% Rdg + 2 LSD)
AC Voltage 400.0 mV ±(1.0%Rdg + 50 LSD) 4.000/40.00/400.0/600 V ±(1.2% Rdg + 3 LSD)
AC/DC Current 40.00/400.0 A ±(2% Rdg + 10 LSD) @50 – 60 Hz
Resistance 400.0 O, 4.000/40.00/400.0 kO ±(1% Rdg + 5 LSD) 4.000/40.00 MO ±(3% Rdg + 3 LSD)


What’s Included

  • ACDC-400
  • Carrying case
  • Test leads
  • Battery (installed)


Datasheet »
Product Manual »
Product Manual Supplement »

7 reviews for Amprobe ACDC-400 AC/DC 400 A Digital Clamp Multimeter

  1. Crisp

    Excellent Clamp Multimeter

    I recommend this to anyone who has the need. It is a great basic Clamp Multimeter.

    ✔ Yes, I recommend this product.

  2. geforema

    This product is easy to use. Very simple

    But also accurate. Easy to read also. Nice design.

    ✔ Yes, I recommend this product.

  3. sparky55

    This is the meter to bring with it does it all volts amps ohms.

    The one meter to use all the functions you need on those service calls.

    ✔ Yes, I recommend this product.

  4. Bossman

    Saves Time and Gives Quick Answers

    I work with 208 3-Phase power on industrial equipment where I need to measure current draw on each leg of a unit to confirm specs and ensure loads are properly balanced. The clamp probe lets me measure each phase quickly and accurately without the need to talke the time to connect an inline current measuring device. The safety isolation also makes the measurements safer when working around live circuits. This device is the best way to go when you need to make current measurements on AC Mains.

    ✔ Yes, I recommend this product.

  5. Mikey911

    Safety is in your hands

    This is one of the best meters I have ever used. During a remodel of a 100yr old house I was able to check if wires I was finding in the walls were still live and what voltage was going through them. I would have to say that this meter saved me not only time from having to run up and down stairs checking plugs and flipping breakers but may have saved me from a serious shocked by handle 100yr old cloth wires that were brittle and live. I give this the highest of marks and would most definitely recommend to others.

    ✔ Yes, I recommend this product.

  6. jettech98

    makes testing and troubleshooting quick and easy

    Very easy to use. Helps cut down on time needed to troubleshhot systems. Has easy to use functions.

  7. Betta

    Great clamp in the hand.

    I use this most on DC feels good.
    I like the bar graph a lot.
    Clamp gets in to tight places.
    This meter has held up very well.
    If I lost it I would buy the same unit.

    ✔ Yes, I recommend this product.

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