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Description
FNIRSI MC-40 DIG CLAMP M/METERFNIRSI MC 40 Digital Clamp Meter AC DC Voltage 600V. AC Current Only 600A. Diode NCV OHM Test 6000 COUNTS TRUE RMS Auto Range. Battery Type DC 1. 5V*2 AAA (Not Included) AC DC Digital Clamp Meter Overview The MC 40 is a high precision clamp meter designed to handle a wide range of measurement tasks with ease. This versatile tool features a high current rating of 600A, allowing you to measure even the most demanding electrical loads. With its
FNIRSI MC-40 Digital Clamp Meter AC/DC Voltage 600V. AC Current Only 600A. Diode NCV OHM Test 6000 COUNTS TRUE RMS Auto Range. Battery Type DC 1.5V*2 AAA (Not Included)
AC/DC Digital Clamp Meter
Overview
The MC-40 is a high-precision clamp meter designed to handle a wide range of measurement tasks with ease. This versatile tool features a high current rating of 600A, allowing you to measure even the most demanding electrical loads.
With its intelligent auto-ranging function and True RMS measurement capability, the MC-40 delivers accurate and reliable results every time. The large, clear display and backlight ensure visibility in any lighting condition, while the data hold function allows you to freeze readings for easy analysis.
The MC-40 is equipped with a host of additional features, including non-contact voltage detection, diode testing, resistance measurement, and automatic shutdown to conserve battery power. The durable, ergonomic design and large jaw opening make it easy to use and transport.
Features
- Automatic Range Selection: Eliminates the need for manual range adjustments, automatically identifying the appropriate measurement range for greater ease of use and efficiency.
- 600A High Current Measurement: Capable of measuring currents up to 600A, offering a higher upper limit and broader application for various electrical systems and projects.
- High-Quality Chip – Enhanced Accuracy: Equipped with an advanced chip for fast and accurate measurements, providing a sampling rate of three times per second for optimal performance.
- Versatile Measurement Capabilities: Supports multiple measurements including AC voltage detection, AC current detection, resistance measurement, and NCV voltage detection, making it ideal for a wide range of diagnostic tasks.
- 6000 Counts – Precise Measurements: Displays up to 6000 counts, ensuring highly precise and reliable readings for even the most detailed measurements.
- Intelligent Anti-Burnout Protection – Safe and Reliable: Comprehensive overload protection safeguards the device from damage, allowing for secure and worry-free operation.
- 26mm Large Jaw Design: Designed with a larger jaw (26mm) to easily accommodate cables of various diameters, simplifying current detection in different applications.
-
Non-Contact Voltage (NCV) Measurement: Detects voltage without physical contact. The meter emits an audible beep and flashes a warning light when voltage is detected, enhancing safety during insulation testing.
• Alarm Sound: Slow beep when voltage is detected (2-5 cm from the source).
• Warning Light: Rapid flashing when in close proximity (0-1 cm). - Automatic Shutdown – Energy Conservation: The device automatically powers off after 25 minutes of inactivity, conserving battery life and improving energy efficiency.
- Flashlight: Built-in flashlight for measurements in any lighting condition.
- Screen Backlight: High-brightness backlight ensures easy reading even in low-light environments.
- Data Retention: Holds the last measurement value for quick and easy reference.
Specifications
| Model | MC-40 |
| AC Voltage | 4V / 40V / 600V |
| DC Voltage | 4V / 40V / 600V |
| AC Current | 4A / 40A / 600A |
| Resistance | 400Ω / 4KΩ / 40KΩ / 400KΩ / 4MΩ / 40MΩ |
| Diode | Supported |
| On/Off Test | Supported |
| Auto Shutdown | Supported, after 25 minutes of inactivity |
| NCV Measure | Supported |
| True RMS | Supported |
| Intelligent Anti-burning | Supported |
| Flashlight | Supported |
| Screen Backlight | Supported |
| Data Hold | Supported |
| Battery Type | DC 1.5V × 2 AAA (Not included) |
| Measuring Rate | 3 times/s |
| Dimension | 185 × 71 × 35 mm |
| Maximum Jaw Opening Size | 26 mm |
| Ambient Operating Temperature | 5℃ ~ 35℃ |
| Storage Temperature | -10℃ ~ 50℃ |
| Display Type | Digital display |
Downloads
Additional Information
| Device | Clamp Meter |
| Type | AC/DC | Digital |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Our Dog Is OBSESSED – Night Play Game Changer!
This light-up dog ball is a total hit in our house. As you can see from the photos, the glow is bright and easy to spot even in complete darkness, which makes nighttime play so much safer and more fun. The motion-activated light turns on instantly when my dog nudges or bites it, and the 90-second auto glow is perfect.
The silicone material feels soft but durable, gentle on teeth, and my dog loves carrying it around. USB-C charging is super convenient, and one charge easily lasts multiple evening play sessions. It’s also water-resistant, so no worries about grass or dew.
Perfect size for small to medium dogs, and it keeps my pup engaged and active after sunset. Highly recommend for anyone who wants fun, visible, and stress-free night play with their dog!
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Reviewed in the United States on January 8, 2026
★★★★★ 3
Better yet imporbable than the original LaRoo Ball
I owned the LaRoo v1 (old version of this ball) my 100lb lab loved it. It was the first light up toy to resist the strength of this jaw. It glowed bright enough and stayed on long enough to be fun for the dog in the darkest settings. Unfortunately I was stress testing it and he was able to unscrew it at some point and destroy the ball. Supervised it was great.
Onto this new one. It glows brighter for longer, great improvement on the original red one. My issue comes with the cap. They changed it from a threaded screw on cap to a bayonet mount (push in turn 1/16 of a turn its locked) the issue is that the bayonet plug was a few mm too short in tolerance and slipped out on our first play session. Its not nearly as secure as it once was. That being said a couple rounds of electrical tape around the perimeter of the plug and it now fits securely in the slot and is safe for puppy. This is a hard ball comparable to a baseball in size and softness. It doesn't make noise. The dog LOVES it. Its his favorite toy. If your dog plays fetch they will love this toy.
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Reviewed in the United States on February 17, 2026
★★★★★ 2
Not practical
I really wanted to like this ball, but it didn’t work well for us. The rubber is very hard and heavy, which made it difficult for my dog to catch it in the air and it was less enjoyable to play with overall. After only a short time, the plastic lid got stuck, and now I’m unable to open it to recharge the ball.
The light feature is a nice idea, but between the hardness of the ball and the charging issue, it just wasn’t practical. Disappointing quality for the price.
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Reviewed in the United States on December 28, 2025
★★★★★ 1
Value
Waisted used 1 night won't charge won't light
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Reviewed in the United States on March 12, 2026
★★★★★ 5
Perfect night-play companion
This ball is a total lifesaver for our evening routine. It’s perfectly suited for nighttime, the glow is so bright and consistent. My pup used to get so disappointed when the sun went down because it meant we had to stop playing ball. Now, the fun doesn't have to end! He never has to feel let down by the dark again. Seeing his face light up (literally!) is the best part.
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Reviewed in the United States on January 15, 2026