Amprobe ACD-14 TRMS-PLUS Dual Display Digital Clamp Multimeter

(25 customer reviews)

Amprobe ACD-14 TRMS-PLUS Dual Display Digital Clamp Multimeter

  • Dual displays – permits simultaneous reading of amperage and voltage
  • True-rms for precise measurement results
  • New thin jaws, 5mm thinner than others to access tight measurement spaces
  • Micro Amps measurement for testing flame sensors
  • Capacitance to 3000 µF
  • Temperature with K-type thermocouple probe
  • AC and DC Voltage to 600V
  • Resistance to 40MΩ
  • AC Current to 600A
  • Frequency measurement
  • Diode test and continuity buzzer
  • Hold and maximum reading functions
  • In rush current
  • Accommodates conductors up to 28 mm (1.1) in diameter
  • Auto ranging
  • Auto power off and low battery indication
  • Rubber over-molded case


SKU: 3086910 Category:


The Amprobe ACD-14 TRMS-PLUS Digital Clamp Multimeter is the perfect choice for HVAC and electrical applications due to its versatile set of features which includes microamps, temperature with thermocouple, capacitance, frequency and true-rms accuracy. This digital clamp multimeter provides added functionality with a dual display for views of amperage and voltage simultaneously.


AC Voltage 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, 600 A
Resistance 400.0 O, 4.000 kO, 40.00 kO, 400.0 kO, 4.000 MO, 40.00 MO
Capacitance 500.0 nF, 5.000 µF, 50.00 µF, 500.0 µF, 3000 µF
Frequency 40 Hz → 400 Hz with Jaw, 10 Hz → 100 kHz with test leads
Temperature -4 °F → 999 °F (-20 °C → 537 °C)
Dual displays
Micro amps
Accommodates conductors up to 1.0 (25 mm) in diameter
Display: 3-3/4 digits 4000 counts, dual LCD displays
Update rate: 3 per second nominal
Polarity: Automatic
Operating temperature: 0°C to 40°C (32°F to 104°F)
Power supply: Two 3V alkaline button batteries (ANSI/NEDA-5004LC, IEC-CR2032

For complete specs please download the product datasheet under the “Resources” tab.

What’s Included

  • Dual Displays – Permits simultaneous reading of Amperage & Voltage
  • True-rms for precise measurement results
  • New thin jaws, 5mm thinner than others to access tight measurement spaces
  • Micro Amps measurement for testing Flame Sensors

Included Accessories:   Test leads, battery (installed), soft carrying pouch, users manual, type-K thermocouple with banana plug


Datasheet »
Product Manual »

25 reviews for Amprobe ACD-14 TRMS-PLUS Dual Display Digital Clamp Multimeter

  1. Gilly

    This is a great all around meter

    This meter does it all. I’ve had mine for two years now, and it’s the only meter i carry for HVAC work, and true-rms is a must for todays equiptment. It would be nice if the display was a little larger or maybe a lighted white background. Overall a very accurate and functional meter.

    ✔ Yes, I recommend this product.

  2. gbw0258

    Great Solid Meter

    I have always been an Amprobe guy since I was a student in school. Now that I have become an HVACR Instructor I went to the Amprobe ACD-14 Clamp on Multimeter. This meter is in every toolbox that I check out to my students. This meter serves all the purposes I need for students to learn. The new version that defaults to AC Voltage instead of DC is now perfect as far as I am concerned. My students love the meter and its usually the one they purchase when they leave school. The dual screens give the abilty to calculate Air Flow on Electric Heat Furnaces very easy. If I changed anything about this meter it would be only that the screens be enlarged a little more. The features of Temperature, Capacitance, Meg ohms, DC volts and Micro Amps, Continuity, and of course AC volts and Amps makes this meter the perfect HVACR Technician meter.

    ✔ Yes, I recommend this product.

  3. bruteforce

    great meter

    this meter is great works well very ruggard the two screens
    are handy when working on hvac equipment

    ✔ Yes, I recommend this product.

  4. vince

    good all around but it need 1 thing more

    great tool works as described the only thing it lacks is it cant measure a 4 – 20 mA signal it willmeasure: 1-5 v, 2 -10 v, but not 4-20 mAother then that it is a out standing tool

    ✔ Yes, I recommend this product.

  5. Steve37

    One Size Fits All

    Service tech for automated machinery manufacturer,,, the ACD-14 is the only meter I now carry, I can solve all my troubleshooting situations because this meter has such a wide range and is so feature rich. It’s trully like having three meters in one, low voltage / current, high voltage, temp,,, Best investment made in a tool ever perhaps

    ✔ Yes, I recommend this product.

  6. Geoknows13

    This Product has a lot of usefull functions that are field tested.

    I make recommendations for tools and equipment used in the maintenance industry and the Amprobe ACD14 took the place of several tools normally needed for various areas. The multi-function and ease of use are probably the most outstanding features. The tool has proven to be reliable and very versatile. I would highly recommend this product.

    ✔ Yes, I recommend this product.

  7. Bono

    Works great!

    The dual capabilities is great.You can check volts and amps at the same time with the same meter.

    ✔ Yes, I recommend this product.

  8. jmr3

    accurate and durable

    this is the most durable and reliable meter i own–it takes alot of abuse and continues to be very reliable.

    ✔ Yes, I recommend this product.

  9. Bob1961

    MOst features are good, some need improvement

    I found the Amprobe ACD-14 to be fully capable of obtaining electrical measurements. I like the bright red color making it easy to locate, the display has digits that are easily readable even for someone who’s eyes have been working for more than 50 years. It was taher cumbesome though and the lack of location to place the leads for taking readings needs to be improved. Making the jaw more of a hook to grab wiring would kelp as well. I would recommend this as I said but there is room for imorovement

    ✔ Yes, I recommend this product.

  10. Fasini

    Tool is very handy in the use of investigation Trouble shooting

    I am a an electrical engineer and use the amprobe features to sovle problems such as Ampere readings on each phase and voltage readings. The tool is very handy and easy to use. I carry an amprobe Current/multi tester in my tool box all the time.

    ✔ Yes, I recommend this product.

  11. jecorey

    My main meter!

    I have 4 multimeters in my possession and this is my go-to every time!

    I use just about every function on it and I love the fact that this meter zeros out fast! I’ve tested the accuracy against a number of Fluke meters and this meter was dead on with all measurements!

    The fact I can test controls while monitoring amperage on my HVAC systems is a saver. And then turn around and use the same meter to test my building controls is all that I can ask for!

    This meter has a place in my go bag on every call!

    ✔ Yes, I recommend this product.

  12. JC50

    terrible product

    As for my meters I threw the last on away 2 weeks ago and bought a craftsman.I have had 3 of this type go bad.I had thought Amprobe was top of the line.I have worked as a HVAC technician for over 30 years.One of the most important and most used tools in my bag is a amp-volt meter.I have gone through 4 digital meters and 1 analog meter AMPROBE BRAND in the last 15.I bought Amprobe because older techs had 1 for over 20 years.I’m lucky to get 2 years from one..I DO NOT! abuse them.All have been carried in cases.The analog was carried in my service truck in the hard plastic molded case .It lasted less than 6 months.
    The only Amprobe product That has lasted is my ultrasonic leak detector !5 years.The only thing I ever repaired on it was a loose solder joint in the head after 6 years.It works great.

    ✘ No, I do not recommend this product

  13. Amprobe

    Thank you very much for your feedback, and we sincerely apologize for your negative experience with Amprobe. Amprobe closely monitors its product quality and has an industry leading quality performance metric of 0.13% defect rate; however, you unfortunately have experienced several quality issues. We will have someone on our team reach-out to you to better understand the quality issues you are facing so that we can continue to improve our quality.

  14. btaylor

    great a must have meter

    compact, lightweight very useful a must have meter

    ✔ Yes, I recommend this product.

  15. Beto

    Dual Display

    Good meter it has great features like the Dual Display, my personal favorite. It has audible continuity which is a great feature to have in this industry (hvac/r and electrical) True RMS is a must on troubleshooting electrical motors.
    Overall a great investment and must have for us technicians.

    ✔ Yes, I recommend this product.

  16. Hunter2

    Excelent Tool

    We need know what the exact amp draw is for our spas. We can’t have a spa in the winter shut down when it’s -20 degrees outside. We also need to know what each part is drawing right down to the milivolts. Definately an excelent choicer

    ✔ Yes, I recommend this product.

  17. Rudog

    Best tool ever

    Two tools in one. I have used other brands but nothing like my new amprobe.

    ✔ Yes, I recommend this product.

  18. Ghost71

    Only meter for HVAC

    I’ve been in the hvac industry for 29 years. This has been my go to meter since I found it years ago. It’s compact and rugged. The dual displays allow me to watch voltage and amperage at motor start up making diagnostics much faster and easier. The price is a little high depending on where you buy it. But worth the money if you are serious about providing quality service to your customers. The only thing I would change as I do with each one is better leads with clips. And a magnet on the back to attach it to units for easier operation.

    ✔ Yes, I recommend this product.

  19. Topcat

    Great multi-use tool

    Couldn’t be without it. Serves the purpose for any electrician

    ✔ Yes, I recommend this product.

  20. Britt

    Great quality and reliability

    This meter has been fantastic. Very accurate and great build quality. Nice to have the extra piece of mind when in the field supporting PTAC for a global manufacturer. No issues recommending this to technicians that I am training. A+

    ✔ Yes, I recommend this product.

  21. Milimbar

    Very good meter for the price.

    I have had this meter for about 3 years now and it has been a very accurate and reliable tool. I tested its accuracy with my fluke and it was dead on at 480v. The only issue I have had was the clip on amp meter stopped working recently. I found an easily fixable short that caused this. It is now fixed and ready for another 3 years of service.

    ✔ Yes, I recommend this product.

  22. Dave22

    Best clamp meter out there

    First things first this client meter has been a perfect addition to my tools. I got this client meter when I was in school to become electrician. I have no switch fields and become an HVAC service tech it has been an excellent testing clamp meter.

    ✔ Yes, I recommend this product.

  23. Zach

    Perfect tool for the job

    This multimeter has been put to the test! It is used on a daily basis multiple times a day and does just what I need it to! I would let go anywhere else looking for one!

    ✔ Yes, I recommend this product.

  24. Nicknegron1

    Excellent meter and a great value

    Perfect for seeing voltage and amperage during start-ups. Very well designed, good but for the cost.

    ✔ Yes, I recommend this product.

  25. Builder38

    Durable, Accurate, Reliable

    I have had my Clamp on AMPROBE for a while. I trust its readings. I dropped it once from several feet. It was undamaged. Good tools. Built to work, built to last.

    ✔ Yes, I recommend this product.

  26. AK81

    Nice and handy

    Its handy tool in right hands , easy to use for all users including masster of noon or Jack all tre….

    ✔ Yes, I recommend this product.

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