Extech Ma445: Top-notch Specifications, Comprehensive Comparisons, And Trusted Buying Sources

Extech MA445 Information

The Extech MA445 is a True RMS AC/DC clamp meter that measures AC current, resistance, capacitance, frequency, and temperature. It also features a non-contact voltage detector, built-in flashlight, Data Hold, DC Zero, and Auto Power Off.

Image of Extech MA445 True RMS AC/DC Clamp Meter

Specifications

Feature	Spec
Measuring Range	AC Current: 400A, DC Current: 1000A, Resistance: 40 Mohm, Capacitance: 400 mF, Frequency: 99.99 Hz to 199.99 kHz, Temperature: -10 to 1024°C
Accuracy	AC Current: ±1.5%, DC Current: ±1.0%, Resistance: ±1.0%, Capacitance: ±3.0%, Frequency: ±0.1%, Temperature: ±2°C
Resolution	AC Current: 10 mA, DC Current: 1 mA, Resistance: 0.1 ohm, Capacitance: 0.01 mF, Frequency: 0.01 Hz, Temperature: 0.1°C
Display	3 1/2 digits, 1000 counts
Backlight	Yes
NCV (Non-Contact Voltage)	Yes
Built-in Flashlight	Yes
Data Hold	Yes
DC Zero	Yes
Auto Power Off	Yes
Dimensions	6.3 x 2.4 x 1.2 inches
Weight	8.4 ounces

Features

• True RMS measurement for accurate readings of non-sinusoidal waveforms
• Built-in non-contact voltage detector for safe and easy detection of live wires
• Built-in flashlight for illuminating work areas in low-light conditions
• Data Hold function to freeze readings for easy viewing
• DC Zero function to set the meter to zero for accurate DC current readings
• Auto Power Off to conserve battery life

What's in the box

• Extech MA445 clamp meter
• Instruction manual
• 9V battery

The Extech MA445 is a versatile and powerful clamp meter that is ideal for a variety of electrical and electronic applications. It is easy to use and features a number of safety features to help prevent accidents. Whether you are a professional electrician or a DIY enthusiast, the Extech MA445 is a valuable tool to have in your toolbox.

Additional Information

The Extech MA445 is backed by a one-year warranty. It is available for purchase online and at select retailers.

Extech MA445 Compare with Similar Item

a table comparing the Extech MA445 with similar items:

Feature	Extech MA445	AmazonCommercial 600A	KAIWEETS HT206D	KAIWEETS HT208D	Klein Tools CL800
Max. AC current	400A	600A	600A	1000A	1000A
Max. DC current	400A	600A	600A	1000A	1000A
True RMS	Yes	Yes	Yes	Yes	Yes
NCV	Yes	Yes	Yes	Yes	Yes
Voltage range	600V	600V	600V	600V	1000V
Resistance range	400Ω	400Ω	400Ω	400Ω	400Ω
Capacitance range	100μF	100μF	100μF	100μF	100μF
Frequency range	50Hz-500Hz	50Hz-500Hz	50Hz-500Hz	50Hz-500Hz	50Hz-500Hz
Dimensions	7.2 x 2.8 x 1.6 in	7.6 x 3.2 x 1.6 in	7.3 x 3.0 x 1.3 in	7.2 x 3.2 x 1.6 in	8.1 x 3.1 x 1.6 in
Weight	13.2 oz	14.4 oz	12.3 oz	13.4 oz	14.8 oz
Price	$69.99	$79.99	$39.99	$59.99	$99.99

As you can see, the Extech MA445 is a mid-range clamp meter with a max. AC current of 400A and a max. DC current of 400A. It has true RMS measurement, NCV, and a voltage range of 600V. It is smaller and lighter than the AmazonCommercial 600A and the KAIWEETS HT208D, but it has a smaller voltage range. The KAIWEETS HT206D is the most affordable option, but it has a lower max. current than the other meters. The Klein Tools CL800 is the most expensive option, but it has a higher max. current and a wider voltage range.

Ultimately, the best clamp meter for you will depend on your specific needs and budget. If you need a mid-range clamp meter with a good balance of features and price, the Extech MA445 is a good option. If you need a more affordable option, the KAIWEETS HT206D is a good choice. If you need a higher max. current or a wider voltage range, the AmazonCommercial 600A, the KAIWEETS HT208D, or the Klein Tools CL800 are good options.

Extech MA445 Pros/Cons and My Thought

The Extech MA445 is a true RMS clamp meter that measures AC and DC current, voltage, resistance, capacitance, frequency, duty cycle, and temperature. It also has a non-contact voltage (NCV) detector. The meter is rated to measure up to 400 amps AC and 600 volts AC/DC.

Pros:

• True RMS measurement
• Wide range of measurements
• NCV detector
• Backlit display
• Durable construction
• Affordable price

Cons:

• No data hold function
• No auto-ranging
• Not as accurate as some higher-end meters

User reviews:

• Positive: "This meter is great for the price. It's accurate and has all the features I need for my work." - Amazon reviewer
• Negative: "The display is a little hard to read in bright sunlight." - Amazon reviewer

My thoughts:

The Extech MA445 is a great option for electricians, technicians, and hobbyists who need a versatile and affordable clamp meter. It's accurate, durable, and has a wide range of measurements. However, it lacks some features that more expensive meters offer, such as data hold and auto-ranging.

Overall, the Extech MA445 is a great value for the price. It's a reliable and accurate meter that can handle a variety of tasks. If you're looking for a good quality clamp meter without breaking the bank, the MA445 is a great option.

Here are some additional thoughts on the Extech MA445:

• The meter is easy to use and has a clear display.
• The NCV detector is a handy feature for checking for live wires.
• The meter is well-built and should last for many years.

If you're looking for a reliable and affordable clamp meter, the Extech MA445 is a great option. It's a versatile meter that can handle a variety of tasks, and it's backed by Extech's reputation for quality.

Extech MA445 Where To Buy

some places where you can buy Extech MA445 and spare parts:

• Extech direct: You can buy the Extech MA445 directly from the Extech website. They have a wide selection of spare parts available as well.
• Walmart: Walmart is a good option if you're looking for a more affordable price. They often have sales on the Extech MA445, and they also have a good selection of spare parts.
• Amazon: Amazon is another great option for finding the Extech MA445. They have a wide selection of both the multimeter and spare parts, and their prices are often very competitive.
• Best Buy: Best Buy is a good option if you're looking for a brick-and-mortar store where you can buy the Extech MA445. They usually have a good selection of multimeters, and they can also help you find the right spare parts.
• Lowes: Lowes is another good option for finding the Extech MA445 in a brick-and-mortar store. They usually have a good selection of multimeters, and they can also help you find the right spare parts.
• eBay: eBay is a good option if you're looking for a used or refurbished Extech MA445. You can often find them for a fraction of the price of a new one.

I hope this helps!

Extech MA445 Problems and Solutions

some common issues and problems with the Extech MA445 multimeter and their solutions:

• The multimeter won't turn on.
  • Make sure that the batteries are inserted correctly.
  • If the batteries are new, try replacing them.
  • If the multimeter still won't turn on, it may be defective. Contact Extech for a replacement.
• The multimeter is displaying incorrect readings.
  • Make sure that the leads are properly inserted into the multimeter.
  • Check the range that you are using. The multimeter may be set to a range that is too low for the measurement you are taking.
  • If you are still getting incorrect readings, the multimeter may be defective. Contact Extech for a replacement.
• The multimeter is not measuring continuity.
  • Make sure that the leads are properly inserted into the multimeter.
  • Check the continuity setting on the multimeter.
  • If the multimeter still is not measuring continuity, the test leads may be defective. Replace the test leads.

Here are some additional tips for troubleshooting problems with the Extech MA445 multimeter:

• Check the instruction manual. The instruction manual may have troubleshooting tips for specific problems.
• Search online forums. There are many online forums where you can ask for help troubleshooting problems with multimeters.
• Contact Extech customer support. Extech customer support can help you troubleshoot problems with your multimeter and may be able to send you a replacement if necessary.

I hope this helps!