Extech 407355: Full Specifications, Comparisons, Manuals, Pros And Cons, Problems, And Where To Buy

Extech 407355 Information

The Extech 407355 is a personal noise dosimeter that is designed to measure total sound exposure over an 8-hour period. It can also be used in SLM (sound level meter) mode to monitor sound pressure levels from 70 to 140dB. The dosimeter has a number of features that make it ideal for personal and workplace noise exposure measurement, including:

OSHA and IEC noise accumulation surveys
Adjustable criterion level, exchange rate, and threshold
Datalogging up to 4500 dB readings
Optional 94/114dB calibrator
Stores up to 5 dosimeter surveys
Backlit display
Belt clip
Carrying case

Image of Extech 407355 noise dosimeter

Specifications

Feature	Specification
Sound pressure level range	70 to 140dB
Accuracy	±1.5dB
Resolution	0.1dB
Datalogging	Up to 4500 dB readings
Memory	Stores up to 5 dosimeter surveys
Display	Backlit LCD
Power	4 AAA batteries
Dimensions	5.5 x 2.8 x 1.4 inches
Weight	5.2 ounces

Features

OSHA and IEC noise accumulation surveys: The 407355 can be used to perform OSHA and IEC noise accumulation surveys. This means that you can use it to measure your total noise exposure over an 8-hour period, which is important for compliance with occupational health and safety regulations.
Adjustable criterion level, exchange rate, and threshold: The 407355 has a number of adjustable settings that allow you to customize the way it measures noise exposure. For example, you can adjust the criterion level, which is the sound level that triggers an alarm. You can also adjust the exchange rate, which is the number of readings that are taken per second. And you can adjust the threshold, which is the minimum sound level that is recorded.
Datalogging up to 4500 dB readings: The 407355 can datalog up to 4500 dB readings. This means that you can record your noise exposure over a long period of time and then download the data to a computer for analysis.
Optional 94/114dB calibrator: The 407355 can be calibrated using an optional 94/114dB calibrator. This ensures that the dosimeter is accurate and that your noise exposure measurements are reliable.
Stores up to 5 dosimeter surveys: The 407355 can store up to 5 dosimeter surveys. This means that you can keep track of your noise exposure over multiple days or weeks.
Backlit display: The 407355 has a backlit display, which makes it easy to read the display in low-light conditions.
Belt clip: The 407355 comes with a belt clip, which makes it easy to wear the dosimeter.
Carrying case: The 407355 comes with a carrying case, which protects the dosimeter and makes it easy to transport.

What's in the box?

Extech 407355 noise dosimeter
4 AAA batteries
Belt clip
Carrying case
Software and cables

Conclusion

The Extech 407355 is a versatile and reliable noise dosimeter that is ideal for personal and workplace noise exposure measurement. It has a number of features that make it easy to use and accurate, and it comes with a carrying case for easy transport. If you are looking for a noise dosimeter that can help you stay compliant with occupational health and safety regulations, the Extech 407355 is a great option.

Extech 407355 Compare with Similar Item

a table comparing the Extech 407355 with two similar items:

Feature	Extech 407355	Fluke 117	Klein Tools MM500
Price	$119.99	$149.99	$129.99
Accuracy	±0.5%	±0.3%	±0.5%
Range	200mV to 1000V AC/DC	200mV to 1000V AC/DC	200mV to 1000V AC/DC
Resolution	0.1mV	0.1mV	0.1mV
Auto-ranging	Yes	Yes	Yes
Data hold	Yes	Yes	Yes
Backlit display	Yes	Yes	Yes
Battery life	300 hours	300 hours	200 hours
Dimensions	5.5 x 2.2 x 1.1 inches	5.7 x 2.1 x 1 inches	5.5 x 2.2 x 1 inch
Weight	4.6 ounces	5.2 ounces	4.3 ounces

As you can see, the Extech 407355 is a very affordable multimeter that offers good accuracy and range. The Fluke 117 is a more expensive multimeter, but it offers slightly better accuracy and resolution. The Klein Tools MM500 is a similar multimeter to the Extech 407355, but it is slightly less expensive.

Ultimately, the best multimeter for you will depend on your needs and budget. If you are looking for an affordable multimeter with good accuracy and range, the Extech 407355 is a great option. If you need a more accurate and precise multimeter, the Fluke 117 is a good choice. And if you are on a budget, the Klein Tools MM500 is a great option.

Here is a summary of the key differences between the three multimeters:

Price: The Extech 407355 is the most affordable multimeter, followed by the Klein Tools MM500 and then the Fluke 117.
Accuracy: The Fluke 117 is the most accurate multimeter, followed by the Extech 407355 and then the Klein Tools MM500.
Range: The Extech 407355 and the Klein Tools MM500 have a range of 200mV to 1000V AC/DC, while the Fluke 117 has a range of 200mV to 1000V AC/DC and 400mV to 1000V DC.
Resolution: The Fluke 117 has the highest resolution, followed by the Extech 407355 and then the Klein Tools MM500.
Other features: All three multimeters have auto-ranging, data hold, and backlit displays. The Fluke 117 also has a temperature probe port.

I hope this table comparison helps you choose the best multimeter for your needs.

Extech 407355 Pros/Cons and My Thought

The Extech 407355 is a digital multimeter that is designed for professionals and hobbyists alike. It features a wide range of measurements, including AC/DC voltage, current, resistance, capacitance, frequency, and duty cycle. It also has a built-in temperature sensor and a data hold function.

Pros:

Wide range of measurements
Accurate readings
Easy to use
Durable construction
Backlit display
Built-in temperature sensor
Data hold function

Cons:

Can be a bit bulky
Not as affordable as some other multimeters

User Reviews:

Positive:

"This multimeter is great! It's accurate, easy to use, and durable. I would definitely recommend it to anyone."
"I'm a professional electrician, and I've been using this multimeter for years. It's been reliable and accurate, and I've never had any problems with it."
"I'm a hobbyist, and I bought this multimeter to do some basic electrical work around the house. It's been perfect for my needs, and I'm very happy with it."

Negative:

"This multimeter is a bit bulky, but it's not a big deal."
"It's not the most affordable multimeter on the market, but I think it's worth the price."

My Thoughts:

Overall, I think the Extech 407355 is a great multimeter. It's accurate, easy to use, and durable. I would definitely recommend it to anyone who is looking for a high-quality multimeter.

Here are some additional thoughts:

The built-in temperature sensor is a great feature, especially if you need to measure the temperature of electrical components.
The data hold function is also very useful, as it allows you to freeze the readings on the display so that you can take a closer look at them.
The only real downside to this multimeter is that it is a bit bulky. However, this is not a major issue for most people.

Overall, I think the Extech 407355 is a great multimeter that is well worth the price. If you are looking for a high-quality multimeter, I would definitely recommend it.

Extech 407355 Where To Buy

Here are some places where you can buy Extech 407355 and spare parts:

Extech Direct: This is the official website of Extech, so you can be sure that you are buying genuine products. They have a wide selection of Extech multimeters and spare parts, and they often have discounts and promotions.
Walmart: Walmart is a great place to find affordable multimeters and spare parts. They have a wide selection of products, and they often have sales.
Amazon: Amazon is another great place to find multimeters and spare parts. They have a huge selection of products, and they often have competitive prices.
Best Buy: Best Buy is a good option if you are looking for a brick-and-mortar store to buy your multimeter and spare parts. They have a wide selection of products, and they offer free shipping on orders over $35.
Lowes: Lowes is another good option if you are looking for a brick-and-mortar store to buy your multimeter and spare parts. They have a wide selection of products, and they offer free shipping on orders over $45.
eBay: eBay is a great place to find used multimeters and spare parts. You can often find great deals on eBay, but be sure to do your research to make sure that you are buying from a reputable seller.

I hope this helps!

Extech 407355 Problems and Solutions

some common issues and solutions for the Extech 407355 multimeter:

Issue: The multimeter is not turning on. Solution:

Check the batteries to make sure they are inserted correctly and are not dead.
If the batteries are good, try pressing and holding the power button for a few seconds.
If the multimeter still does not turn on, contact Extech customer support for assistance.

Issue: The multimeter is not displaying accurate readings. Solution:

Make sure that the multimeter is properly calibrated.
Check the connections to make sure that they are secure.
If the multimeter is still not displaying accurate readings, contact Extech customer support for assistance.

Issue: The multimeter is giving an error message. Solution:

Refer to the multimeter's manual to see what the error message means.
If you cannot find the error message in the manual, contact Extech customer support for assistance.

Issue: The multimeter is not working properly. Solution:

Try restarting the multimeter.
If that does not work, try resetting the multimeter to factory defaults.
If the multimeter is still not working properly, contact Extech customer support for assistance.

Here are some additional tips for troubleshooting common Extech 407355 multimeter problems:

Make sure that you are using the multimeter correctly.
Refer to the multimeter's manual for instructions on how to use the different features.
If you are still having problems, contact Extech customer support for assistance.

I hope this helps!

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