Extech Ma445: Top-notch Specifications, Comprehensive Comparisons, And Trusted Buying Sources
Extech MA445 Information
The Extech MA445 is a 400A True RMS AC/DC clamp meter with NCV. It is a compact and powerful tool that offers a variety of features, making it ideal for a wide range of electrical applications.
Introduction
The MA445 features a large, backlit LCD display that makes it easy to read measurements in any lighting condition. The meter also has an ergonomically designed housing that provides comfortable, one-handed operation.
Specifications
The following table lists the specifications of the Extech MA445:
| Feature | Specification |
|---|---|
| Measuring Range | AC Current: 400A (True RMS), 10A (DC) |
| Resistance: 400Ω, 400kΩ, 40MΩ | |
| Capacitance: 40nF, 40μF, 40mF | |
| Frequency: 10Hz to 100kHz | |
| Temperature: -20°C to 1000°C (Type K) | |
| Accuracy | AC Current: ±1.5%, 1 digit; Resistance: ±0.5%, 2 digits; Capacitance: ±2%, 2 digits; Frequency: ±0.2%, 1 digit; Temperature: ±2°C, 2 digits |
| Safety Rating | CAT III 600V |
| Dimensions | 6.1" x 2.8" x 1.2" |
| Weight | 7.4 oz |
Features
The Extech MA445 has a number of features that make it a versatile and powerful tool:
- True RMS measurement: The MA445 features True RMS measurement, which ensures accurate readings of non-sinusoidal waveforms.
- NCV detection: The MA445 has a built-in non-contact voltage detector (NCV) that allows you to quickly and safely identify the presence of voltage.
- Data Hold: The Data Hold function allows you to freeze a measurement on the display for easy reference.
- DC Zero: The DC Zero function allows you to zero out the meter's display for accurate DC current measurements.
- Auto Power Off: The Auto Power Off feature automatically turns off the meter after a period of inactivity to conserve battery life.
What's in the Box
The Extech MA445 comes with the following items:
- Meter
- Test leads
- Three AAA batteries
- General purpose Type K temperature probe
- Pouch
Conclusion
The Extech MA445 is a powerful and versatile clamp meter that offers a variety of features. It is ideal for a wide range of electrical applications, from home maintenance to professional use.
Additional Information
The Extech MA445 is a CE and ETL certified meter. It is also backed by a two-year warranty.
Extech MA445 Compare with Similar Item
a comparison of the Extech MA445 with two similar items:
| Feature | Extech MA445 | Klein Tools CL380 | Klein Tools CL600 |
|---|---|---|---|
| Price | $103.95 | $119.99 | $149.99 |
| CAT rating | III | III | IV |
| Max. current measurement | 400 A | 400 A | 1000 A |
| Max. voltage measurement | 600 V | 600 V | 1000 V |
| Display | 3.5 digit | 3.5 digit | 4.5 digit |
| Backlight | Yes | Yes | Yes |
| NCV detection | Yes | Yes | Yes |
| Temperature measurement | Yes | Yes | Yes |
| Type K thermocouple | Yes | Yes | Yes |
| Drop rating | 3 feet | 6.6 feet | 6.6 feet |
| Dimensions | 3 x 1.6 x 9 inches | 3.1 x 0.9 x 9.3 inches | 3.6 x 1.2 x 10 inches |
| Weight | 0.58 pounds | 0.7 pounds | 0.8 pounds |
Key Differences
- The Extech MA445 is the least expensive of the three meters.
- The Klein Tools CL600 is the most expensive of the three meters, but it has a higher CAT rating and can measure up to 1000 volts.
- The Klein Tools CL380 has a drop rating of 6.6 feet, which is higher than the 3 feet rating of the Extech MA445 and the CL600.
Overall
The Extech MA445 is a good value for the price. It has a number of features that are important for electrical work, including NCV detection, temperature measurement, and a 3.5 digit display. If you are looking for a more affordable option, the Extech MA445 is a good choice.
If you need a meter with a higher CAT rating or the ability to measure up to 1000 volts, the Klein Tools CL600 is a good option. It is more expensive than the Extech MA445, but it has a number of features that make it a better choice for some users.
If you are looking for a meter with a drop rating of 6.6 feet, the Klein Tools CL380 is a good option. It is less expensive than the Klein Tools CL600, but it does not have the same CAT rating or voltage measurement capability.
Extech MA445 Pros/Cons and My Thought
the pros and cons of the Extech MA445 multimeter, as well as some user reviews and my thoughts:
Pros:
- The Extech MA445 is a versatile multimeter that can measure a wide range of electrical values, including AC/DC voltage, current, resistance, capacitance, and frequency.
- It is also a very accurate multimeter, with a measurement accuracy of ±0.5%.
- The Extech MA445 is easy to use, with a large, backlit display and simple controls.
- It is also a very durable multimeter, with a rugged construction that can withstand harsh environments.
Cons:
- The Extech MA445 is not the most affordable multimeter on the market.
- It is also not the most compact multimeter, so it may not be the best choice for those who need a portable multimeter.
User Reviews:
Here are some positive and negative user reviews of the Extech MA445 multimeter:
- Positive: "I've been using this multimeter for a few months now, and I'm really happy with it. It's accurate, easy to use, and durable. I would definitely recommend it to anyone who needs a multimeter."
- Negative: "I was disappointed with the Extech MA445. It's not as accurate as I expected, and the controls are a bit clunky. I would recommend spending a little more money and getting a better multimeter."
My Thoughts:
Overall, I think the Extech MA445 is a great multimeter. It's accurate, easy to use, and durable. However, it is not the most affordable multimeter on the market. If you're looking for a more affordable multimeter, I would recommend the Klein Tools MM400.
Here are some additional thoughts on the Extech MA445:
- The Extech MA445 has a built-in data hold function, which allows you to freeze the displayed measurement. This is a great feature for troubleshooting electrical problems.
- The Extech MA445 also has a low-battery indicator, so you'll know when it's time to change the batteries.
- The Extech MA445 comes with a carrying case, so you can easily transport it to and from work.
Overall, I think the Extech MA445 is a great multimeter for anyone who needs a versatile, accurate, and durable multimeter.
Extech MA445 Where To Buy
some places where you can buy the Extech MA445 and spare parts:
- Extech Direct: This is the manufacturer's website, and they have a wide selection of Extech products, including the MA445. You can also find spare parts for the MA445 on their website.
- Walmart: Walmart is a great place to find affordable electronics, and they often have the MA445 in stock. You can also find spare parts for the MA445 at Walmart.
- Amazon: Amazon is another great place to find electronics, and they often have the MA445 at a lower price than other retailers. You can also find spare parts for the MA445 on Amazon.
- Best Buy: Best Buy is a good place to find electronics if you want to be able to see and test the product before you buy it. They often have the MA445 in stock, and you can also find spare parts for the MA445 at Best Buy.
- Lowes: Lowes is a good place to find electronics if you're looking for a more home improvement-oriented retailer. They often have the MA445 in stock, and you can also find spare parts for the MA445 at Lowes.
- eBay: eBay is a good place to find electronics if you're looking for a deal. You can often find the MA445 on eBay for a lower price than other retailers. However, be sure to check the seller's reputation before you buy anything on eBay.
I hope this helps!
Extech MA445 Problems and Solutions
The Extech MA445 is a multimeter that is known for its accuracy and durability. However, like any other electronic device, it can occasionally experience problems. Here are some of the most common issues with the Extech MA445 and their solutions:
Problem: The multimeter doesn't turn on. Solution: Check the batteries to make sure they are inserted correctly and have a good charge. If the batteries are okay, try resetting the multimeter by pressing and holding the power button for 10 seconds. If the multimeter still doesn't turn on, you may need to contact Extech for service.
Problem: The multimeter displays an error message. Solution: The error message will usually tell you what the problem is. For example, if the error message says "OL," it means that the multimeter is overloaded. To fix this, you need to reduce the amount of current or voltage that you are measuring.
Problem: The multimeter's readings are inaccurate. Solution: There are a few things that can cause inaccurate readings on the Extech MA445. Make sure that the multimeter is properly calibrated. You can also try cleaning the multimeter's probes with a damp cloth. If the readings are still inaccurate, you may need to contact Extech for service.
Problem: The multimeter's probes are damaged. Solution: If the multimeter's probes are damaged, you will need to replace them. You can purchase replacement probes from Extech or from a reputable electronics retailer.
Here are some additional tips for troubleshooting problems with the Extech MA445:
- Make sure that you are using the multimeter correctly. Refer to the multimeter's manual for instructions on how to use it.
- If you are still having problems with the multimeter, try resetting it by pressing and holding the power button for 10 seconds.
- If you have tried all of the above and you are still having problems, you may need to contact Extech for service.
I hope this helps!
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