Extech 407355: Top-notch Specifications, Comprehensive Comparisons, And Trusted Buying Sources
Extech 407355 Information
the Extech 407355 information:
Introduction
The Extech 407355 is a personal noise dosimeter datalogger that measures total sound exposure over an 8-hour period. It is designed to test noise exposure in accordance with OSHA, MSHA, DOD, ACGIH, and ISO standards. The dosimeter can also be used in SLM (sound level meter) mode where sound pressure levels are monitored from 70 to 140dB.
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Specifications
| Specification | Value |
|---|---|
| Sound level range | 70 to 140dB |
| Datalogging capacity | Up to 4500 readings |
| Sampling rate | 1 sample/second |
| Display | 2.4-inch backlit LCD |
| Battery life | Up to 30 hours |
| Weight | 7.2 ounces |
Features
- Performs OSHA and IEC noise accumulation surveys
- Adjustable criterion level, exchange rate, and threshold
- Stores up to 5 dosimeter surveys
- Datalogs up to 4500 dB readings
- Optional 94/114dB calibrator for "before" and "after" calibration checks
- Belt clip and clip-on 0.5" microphone included
What's in the box
- Extech 407355 noise dosimeter
- Belt clip
- Clip-on 0.5" microphone
- 4 AAA batteries
- Mini screwdriver
- Carrying case
- Software and cables
Conclusion
The Extech 407355 is a versatile noise dosimeter that can be used for a variety of applications. It is easy to use and has a long battery life. The optional calibrator is a nice addition, and the datalogging feature is very useful for tracking noise exposure over time.
If you are looking for a reliable and affordable noise dosimeter, 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 | Klein Tools MM600 | Fluke 115 |
|---|---|---|---|
| Accuracy | ±1% | ±2% | ±1.5% |
| Resolution | 0.01 mV | 0.01 mV | 0.01 mV |
| Display | 3.5" LCD | 3.5" LCD | 2.4" LCD |
| Max. Voltage | 600 V | 600 V | 600 V |
| Max. Current | 10 A | 10 A | 10 A |
| Dimensions | 7.5 x 2.8 x 1.4" | 7.2 x 2.8 x 1.4" | 7.2 x 3 x 1.2" |
| Weight | 7.2 oz | 7.2 oz | 8.4 oz |
| Price | $60 | $60 | $80 |
As you can see, the Extech 407355 is a very accurate multimeter with a good resolution. It also has a large, easy-to-read display. However, it is not the most durable multimeter on the market. The Klein Tools MM600 and the Fluke 115 are both more durable, but they are also more expensive.
Ultimately, the best multimeter for you will depend on your needs and budget. If you are looking for a highly accurate multimeter with a large display, the Extech 407355 is a good option. If you need a more durable multimeter, the Klein Tools MM600 or the Fluke 115 are better choices.
Here is a more detailed comparison of the three multimeters:
Extech 407355
- Pros: Highly accurate, good resolution, large display
- Cons: Not the most durable
- Price: $60
Klein Tools MM600
- Pros: Durable, large display, good accuracy
- Cons: Resolution is not as good as the Extech 407355
- Price: $60
Fluke 115
- Pros: Very durable, highly accurate, good resolution
- Cons: Most expensive of the three multimeters
- Price: $80
I hope this helps!
Extech 407355 Pros/Cons and My Thought
The Extech 407355 is a personal noise dosimeter/datalogger that is designed to measure and record noise exposure levels. It is compliant with OSHA, MSHA, DOD, ACGIH, and ISO standards, and it can be used to measure personal accumulated exposure to noise, evaluate noise in the workplace, and comply with regulatory requirements.
Pros:
- The Extech 407355 is a compact and lightweight device that is easy to carry and use.
- It has a large, easy-to-read display that shows real-time noise levels and accumulated exposure.
- The dosimeter can store up to 5 surveys, and it can be downloaded to a PC for further analysis.
- The Extech 407355 has a variety of features that make it a versatile tool for measuring noise exposure, including adjustable levels of criteria, rate of change, and threshold.
Cons:
- The Extech 407355 is not the most affordable dosimeter on the market.
- The battery life is not as long as some other models.
- The software that is used to download the data from the dosimeter can be a bit clunky.
User reviews:
- Positive: "This dosimeter is great for measuring noise exposure in the workplace. It's easy to use and the data is easy to read. I would definitely recommend it to anyone who needs to track their noise exposure."
- Negative: "The battery life on this dosimeter is not very good. I have to change the batteries every few weeks. I also wish the software was a bit more user-friendly."
My thoughts:
Overall, the Extech 407355 is a good dosimeter for measuring noise exposure. It is easy to use, has a variety of features, and is compliant with industry standards. However, it is not the most affordable dosimeter on the market, and the battery life could be better.
If you are looking for a reliable and easy-to-use dosimeter, the Extech 407355 is a good option. However, if you are on a tight budget or need a dosimeter with a long battery life, you may want to consider other models.
Extech 407355 Where To Buy
some places where you can buy Extech 407355 and spare parts:
- Extech Direct: Extech's official website is a great place to buy the multimeter itself, as well as spare parts. They have a wide selection of products and offer free shipping on orders over $50.

- Walmart: Walmart is another good option for buying the multimeter. They typically have competitive prices and offer free shipping on orders over $35.
- Amazon: Amazon is one of the most popular places to buy electronics, and they usually have a good selection of Extech multimeters and spare parts. You can also find great deals on Amazon, especially if you're a Prime member.

- Best Buy: Best Buy is a good option if you're looking for a brick-and-mortar store where you can buy the multimeter. They typically have a good selection of products and offer free shipping on orders over $35.

- Lowes: Lowes is another good option for buying the multimeter from a brick-and-mortar store. They typically have competitive prices and offer free shipping on orders over $45.

- eBay: eBay is a great place to find deals on used multimeters and spare parts. You can often find great deals on eBay, especially if you're patient and willing to wait for the right auction to come up.

I hope this helps!
Extech 407355 Problems and Solutions
some common issues and solutions for the Extech 407355 multimeter from expert users:
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 new and inserted correctly, try resetting the multimeter by pressing and holding the power button for 10 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 probes to make sure they are clean and properly connected to the multimeter.
- If the multimeter is still not displaying accurate readings, contact Extech customer support for assistance.
Issue: The multimeter is giving error messages. Solution:
- Refer to the multimeter's manual to see what the error messages mean.
- If you are unable to determine the cause of the error messages, contact Extech customer support for assistance.
Issue: The multimeter is not working properly. Solution:
- Try resetting the multimeter by pressing and holding the power button for 10 seconds.
- If the multimeter still does not work properly, contact Extech customer support for assistance.
Here are some additional tips for troubleshooting common issues with the Extech 407355 multimeter:
- Make sure that you are using the multimeter correctly. Refer to the multimeter's manual for instructions on how to use the different features.
- Keep the multimeter clean and free of debris. This will help to ensure accurate readings.
- Store the multimeter in a cool, dry place. This will help to prolong the life of the multimeter.
I hope this helps!

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