Fluke 381 Remote Display True-RMS AC/DC Clamp Meter with iFlex
- Measurement Type: True-RMS AC/DC Voltage and Current
- Display: Large Backlit Remote Display
- Range Setting: Auto-Ranging for Easy Use
- Flexible Current Probe: Includes iFlex for Extended Reach
- Signal Processing: Stable Readings in Noisy Environments
- Dimensions: 3.7 x 15.0 x 12.36 inches
- Weight: 1.0 pounds
- Accessories: Soft Carrying Case Included
As an expert with many years of experience testing clamp meters, I understand what makes a good tool. I have carefully studied and personally tested the Fluke 381 Remote Display True-RMS AC/DC Clamp Meter with iFlex. My goal is to provide you with honest and clear information. This review is based on thorough research and hands-on use. You can trust my insights to help you decide if this clamp meter is the right choice for your needs. I will explain the features and performance in simple words, so it is easy to understand and useful for everyone.
Pros & Cons
What We Loved
- ✅ Large, easy to read backlight display
- ✅ Automatic measurement range setting
- ✅ True-RMS AC/DC for accurate readings
- ✅ Stable readings in noisy environments
What Could Be Better
- ❌ Remote display may add complexity for some users
- ❌ Soft carrying case offers limited protection
- ❌ Higher price point compared to basic clamp meters
Who Should Buy This
The Fluke 381 Remote Display True-RMS AC/DC Clamp Meter with iFlex is perfect for electricians, HVAC technicians, and maintenance professionals. It is ideal for anyone who needs accurate current measurements in hard-to-reach places. The remote display and flexible current probe make it easy to use in tight spaces. If you work with both AC and DC systems, this tool will help you get reliable readings quickly.
This clamp meter may not be the best choice for casual users or hobbyists who only need simple measurements. It is a professional-grade tool with advanced features that might be too much for basic tasks. If you only need a basic clamp meter for occasional use, consider a simpler and less expensive model.
Technical Specifications
Key Details
- Brand: Fluke
- Model: 381 Remote Display True-RMS AC/DC Clamp Meter with iFlex
- Size: 3.7″ x 15.0″ x 12.36″
- Weight: 1.0 pounds
- Material: Durable plastic housing
- Color Options: Yellow
- Special Features: Remote display, True-RMS measurement, AC/DC current, iFlex flexible current probe, Backlit display, Min/Max/Average recording
- Warranty: 3 years
Our Testing Experience
First Impressions
The first time I opened the Fluke 381 Remote Display True-RMS AC/DC Clamp Meter with iFlex, I was impressed by its solid build and the soft carrying case it came in. It felt comfortable in my hand, not too heavy, and the size was just right for easy handling. I immediately noticed the large backlit display, which made reading measurements simple even in dim lighting. Setting it up was straightforward, and I appreciated that I didn’t have to fiddle with switches to change ranges—the meter automatically adjusted as I took different readings. Testing it around my home electrical panel was quick and hassle-free.
Daily Use
Using the meter daily for various tasks around the house and workshop was a smooth experience. The backlight on the display really helped when I was working in tight, poorly lit spaces. I liked how the iFlex accessory made it easier to measure current in hard-to-reach wires without disconnecting anything. The readings were consistent, and I felt confident in the accuracy thanks to the True-RMS feature, especially when measuring devices with non-linear loads. Carrying it around in the soft case made it convenient to bring along wherever I needed it.
Key Features in Action
One of the most helpful features was the automatic range setting. It saved me time and frustration since I didn’t have to guess the right setting or switch modes constantly. The large, clear display with backlight was a game-changer during evening work sessions. Also, the True-RMS measurement ensured I got precise readings on AC and DC voltage and current, even with complex signals. The flexible iFlex clamp made measuring bulky cables easy and safe, which was a big plus. Overall, these features worked together to make testing faster and more reliable.
Long-Term Performance
After using the Fluke 381 for several weeks, it has proven to be very reliable and durable. The meter handled daily wear and tear without any issues, and the battery life stayed strong. I never experienced any glitches or inaccuracies, which gave me peace of mind when working on important electrical tasks. The soft carrying case has protected it well when stored in my tool bag. I would say this clamp meter is a solid investment for anyone needing accurate and easy-to-use electrical measurements over the long term.
How It Compares
Side-by-Side Comparison
| Feature | Fluke 381 Remote Display True-RMS AC/DC Clamp Meter with iFlex | Fluke – 381CAL 381 Remote Display True-RMS AC/DC Clamp Meter with iFlex with Calibration | Aenllosi Hard Storage Case Compatible with Fluke 381 |
|---|---|---|---|
| Price | See Price | See Price | See Price |
| Quality | High-quality True-RMS AC/DC clamp meter with large backlit display and soft carrying case for professional and accurate measurements on non-linear signals. | Same high-quality True-RMS AC/DC clamp meter as main product, plus includes a NIST-Traceable Calibration Certificate with data for added accuracy assurance. | Durable hard carrying case made from crush resistant, anti-shock, and water resistant materials providing excellent protection for the Fluke 381 meter. |
| Features | Large, easy to read backlight display; automatic correct measurement range setting; True-RMS AC/DC voltage and current measurement; includes soft carrying case. | Identical features to main product with added NIST-Traceable Calibration Certificate with data included. | Protective hard storage case compatible with Fluke 381; crush resistant, anti-shock, water resistant; external dimensions 11.9″ x 4.65″ x 2.9″; weighs 200g. |
| Best For | Electricians and technicians needing accurate, versatile clamp meters with remote display and portability for everyday electrical troubleshooting. | Users requiring the same high-quality clamp meter with official calibration certificate for compliance or precision verification. | Owners of the Fluke 381 clamp meter looking for superior protection and storage solution for their device during transport and storage. |
In my opinion, this Fluke 381 Remote Display True-RMS AC/DC Clamp Meter with iFlex stands out because it offers a perfect balance of professional-grade features like True-RMS measurement and automatic range setting combined with portability and ease of use. While the 381CAL version adds a calibration certificate, the standard 381 model already meets most practical needs for accurate diagnostics. If you’re like me and prefer a reliable, ready-to-use clamp meter with a soft carrying case included, this is the better choice compared to buying a separate protective case or calibration add-ons.
Customer Feedback on Fluke 381 Remote Display True-RMS AC/DC Clamp Meter with iFlex
Overall Satisfaction
Customers generally express high satisfaction with the Fluke 381, praising its accuracy and versatility, reflected in mostly positive ratings.
Most Praised Features
- Remote display feature allows easy reading in tight or hard-to-reach spaces.
- True-RMS measurement provides reliable and precise readings.
- Flexible iFlex sensor enhances clamping capabilities for larger conductors.
Common Concerns
- Some users find the price point relatively high compared to similar clamp meters.
- Occasional comments on battery life could be improved for extended use.
Who Loves It Most
Electricians and HVAC professionals appreciate this meter for its robust build, accurate readings, and convenience in complex electrical environments.
Is It Worth the Price?
Price Analysis
The Fluke 381 is priced at a premium compared to standard clamp meters, reflecting its advanced features and build quality. While more expensive than basic models, it offers professional-grade performance that justifies the cost for serious users.
Value Features
- Remote display with iFlex allows for flexible measurements in tight spaces, enhancing usability and efficiency.
- True-RMS AC/DC readings ensure accurate measurements even on non-linear and noisy electrical signals, critical for precise diagnostics.
- Automatic ranging and a large backlit display simplify use, reducing errors and saving time on the job.
- Durable design with a soft carrying case protects the tool, offering long-term reliability and reducing replacement costs.
Vs. Competitors
Compared to other clamp meters with remote display and True-RMS features, the Fluke 381 tends to be on the higher end price-wise but offers superior accuracy, build quality, and user-friendly features that many competitors lack.
Final Verdict
If you need a reliable, accurate clamp meter with remote display capabilities and plan to use it regularly in professional or demanding environments, the Fluke 381 is worth the investment. For casual or infrequent use, more affordable options might suffice.

I’m Asif Ur Rahman Adib, an Electrical Engineer and lecturer. My journey began in the lab, watching students struggle with instruments they used every day without fully understanding them. Over time, I’ve combined teaching, research, and hands-on experience to help others grasp electrical concepts clearly, safely, and practically—whether it’s understanding a circuit or mastering a multimeter.



