Amprobe AMP-25 Mini-Clamp

(8 customer reviews)

  • Features True-RMS sensing for accurate voltage measurements in noisy electrical environments
  • Measures AC/DC current to 300 A (10mA resolution)
  • Includes a low pass filter to accurately measure voltage and current on variable frequency drives
  • Inrush current for motor start-up monitoring
  • Non-contact voltage detection (NCV) for detecting presence of voltage
  • Jaw opening to 1 in (25 mm)
  • Autoranging
  • DCA zero and data hold
  • Maximizes battery life with auto power off
  • Backlit display for easy measurement viewing in bright and dim environment
SKU: 4588254 Category:


Small size doesn’t mean small features. The Amprobe AMP-25 Mini-Clamp is pocket-sized, enabling quick and easy spot checks of electrical systems. With its rugged construction and CAT III 600 V rating, the AMP-25 is a must-have professional troubleshooting tool for commercial electricians and electrical contractors.

The AMP-25 is designed to measure AC/DC load current and inrush current for motors. Essential features like True-RMS, non-contact voltage and low pass filter make this clamp stand tall next to clamps twice its size. With the AMP-25, you never have to sacrifice performance for size.

Additional information

Safety Rating



AC Current (A)

300 A

DC Current (A)

300 A

Non-Contact Voltage


Inrush Current


Data Hold

Auto Power-Off

Low Pass Filter


Feature AMP-25 Best Accuracy
AC Current(1) 60.00 / 300.0 A +/-(1.5% + 5 LSD)
@ 50 to 100 Hz ≥ 3 A
+/-(2.5% + 5 LSD)
@ 100 to 400 Hz ≥ 3 A
DC Current(2) 60.00 / 300.0 A +/-(1.5% + 5 LSD)
@ 300 A range
Low Pass Filter 300.0 A +/-(3.5% + 5 LSD)
@ 50 to 60 Hz ≥ 3 A
Inrush Current
Non-Contact Voltage
Data Hold
(1)Note: Crest Factor (C.F.) may be up to 3.0 as 4000 counts.
For non-sinusoidal waveforms:
Add 3.0% for C.F. 1.0 to 2.0
Add 5.0% for C.F. 2.0 to 2.5
Add 7.0% for C.F. 2.5 to 3.0
Position error of clamp: +/- 1.5 % of LCD reading
(2) Add 10 LSD in auto AC/DC sense mode


Amprobe AMP-25 Mini-Clamp Overview


Datasheet »
Product Manual »

8 reviews for Amprobe AMP-25 Mini-Clamp

  1. Ritchie

    its my little guy

    the lost of star was cause no rubber on the meter all plastic but everything else is great thank you amprobe for great product that never cuts corners

    ✔ Yes, I recommend this product.

  2. bicycleguy


    Great meter. Nice high quality feel. First measurement I made was inrush current on a refrigerator. So simple compared to my previous methods.

    Precise and useful printed instruction manual.

    Couldn’t open the included min-DVD, but I think that’s my issue. This site probably has all the same info?

    ✔ Yes, I recommend this product.

  3. dirtybug

    a great fit!

    Perfect size for service tech. Has all the features needed and doesn’t take up much room in the tool bag. Why would anyone buy the bigger ones?

    ✔ Yes, I recommend this product.

  4. Sparky1240

    This is a great product

    I carry the AMP-25 in my pocket on a daily basis, with a pocket meter. It is small enough that I don’t notice it,and It is great to take on a check of a motor, before you drag out the tool bag and the normal meter. Fits in tight places. Really easy to use and long stand by battery life.

    ✔ Yes, I recommend this product.

  5. Gzwa

    Small size, good accuracy & resolution

    I find the AMP-25 Mini-Clamp is a good all around tool for measuring current in tight MCC enclosures other hard to reach locations. It is small enough, and rugged enough, to keep in my toolbox for easy access but has the accuracy and resolution I need for motor or LP balance checks.

    ✔ Yes, I recommend this product.

  6. patrick68

    Is something all electrican need

    It a great product to have. IT should be in every home.

    ✔ Yes, I recommend this product.

  7. josh15420

    Excellent features for a compact AC/DC clamp meter

    I purchased this clamp meter because I was looking for one without voltage measurement – I already own a good DVM. I also wanted AC/DC in a single meter, and the non-contact voltage detection is a plus.

    The inrush feature is what sold me on this clamp. I wanted to measure various loads around my house to size a portable home generator, and being able to measure both running amps and inrush with one meter is exactly what I was looking for.

    ✔ Yes, I recommend this product.

  8. Cowboysparky71

    That s a very nice meter

    This is a very good meter. It has all the features that you would want to find in a smaller handheld unit. It is very user friendly and very comparable with similar meters from other manufacturers.

    ✔ Yes, I recommend this product.

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