Extech Ex505: The Ultimate Guide – Full Specifications, Comparisons, Manuals, Troubleshooting, And Where To Buy
Extech EX505 Information
Intro
The Extech EX505 is a heavy-duty, true RMS multimeter that is designed for industrial and professional use. It features a wide range of measurements, including AC/DC voltage, current, resistance, capacitance, frequency, duty cycle, diode test, and temperature. The EX505 also has a number of features that make it ideal for use in harsh environments, such as a water-resistant and dustproof housing, and a drop-resistant design.
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Full Specifications
| Feature | Specification |
|---|---|
| Display | 4,000 count backlit LCD |
| Accuracy | 0.5% basic |
| Auto Power Off | With disable |
| True RMS | Yes |
| Protection | 1000V CAT IV-600V |
| Dimensions | 7.25" x 3.25" x 2.25" |
| Weight | 12.3oz |
Features
- 11 measurement functions: AC/DC voltage, current, resistance, capacitance, frequency, duty cycle, diode test, temperature, relative, data hold, and auto power off.
- True RMS measurement for accurate readings of non-linear signals.
- Water-resistant and dustproof housing (IP67 rated).
- Drop-resistant design (to 6 feet).
- Large, backlit LCD display for easy viewing in low-light conditions.
- Auto-ranging capabilities for quick and easy measurements.
- Relative mode for comparing two readings.
- Data hold function to freeze a reading for later analysis.
- Auto power off to conserve battery life.
What's in the box
- Extech EX505 multimeter
- Test leads
- Magnetic hanging strap
- Type K bead wire temperature probe
- Carrying case
- 9V battery
Conclusion
The Extech EX505 is a versatile and powerful multimeter that is ideal for industrial and professional use. It is packed with features and is built to withstand harsh environments. If you are looking for a multimeter that can handle the most demanding tasks, the Extech EX505 is a great option.
Additional Information
- The Extech EX505 is backed by a 2-year warranty.
- The multimeter is available in a variety of languages, including English, French, Spanish, German, and Italian.
- The Extech EX505 is CE, FCC, and RoHS compliant.
Extech EX505 Compare with Similar Item
a table comparing the Extech EX505 with two similar multimeters:
| Feature | Extech EX505 | Mastech MS8208 | Fluke 115 |
|---|---|---|---|
| Price | $129.99 | $99.99 | $199.99 |
| Accuracy | +/- 0.5% | +/- 1% | +/- 0.1% |
| Range | DC Voltage: 200 mV to 1000 V | DC Voltage: 200 mV to 1000 V | DC Voltage: 200 mV to 1000 V |
| AC Voltage: 200 mV to 600 V | AC Voltage: 200 mV to 600 V | AC Voltage: 200 mV to 600 V | |
| Current: 200 mA to 10 A | Current: 200 mA to 10 A | Current: 200 mA to 10 A | |
| Resistance: 20 ohm to 40 M ohm | Resistance: 20 ohm to 40 M ohm | Resistance: 20 ohm to 40 M ohm | |
| Capacitance: 20 nF to 100 mF | Capacitance: 20 nF to 100 mF | Capacitance: 20 nF to 100 mF | |
| Diode test | Yes | Yes | Yes |
| Continuity | Yes | Yes | Yes |
| Frequency: 20 Hz to 10 MHz | Frequency: 20 Hz to 10 MHz | Frequency: 20 Hz to 10 MHz | |
| Duty cycle | Yes | Yes | Yes |
| Temperature: -40°C to 1000°C | Temperature: -40°C to 1000°C | Temperature: -40°C to 1000°C | |
| CAT rating | IV 600V | IV 600V | IV 600V |
| Dimensions | 5.3 x 2.8 x 1.4 inches | 5.2 x 2.8 x 1.2 inches | 6.3 x 2.6 x 1.4 inches |
| Weight | 11.2 ounces | 9.6 ounces | 14 ounces |
As you can see, the Extech EX505 is a mid-range multimeter that offers a good balance of features and price. It is accurate, has a wide range of measurements, and is CAT IV rated for safety. The Mastech MS8208 is a less expensive option that offers similar features. The Fluke 115 is a more expensive multimeter that offers higher accuracy and a wider range of measurements.
Ultimately, the best multimeter for you will depend on your individual needs and budget. If you are looking for a reliable and accurate multimeter that won't break the bank, the Extech EX505 is a great option. If you need a multimeter with the highest accuracy and a wide range of measurements, the Fluke 115 is a better choice.
Extech EX505 Pros/Cons and My Thought
the pros and cons of the Extech EX505, as well as some user reviews and my thoughts:
Pros:
- Accurate and reliable readings
- Durable construction
- Easy to use
- Wide range of measurements
- Backlit display
- Compact and portable
Cons:
- Pricey
- Not as user-friendly as some other multimeters
- Battery compartment can be difficult to open
User reviews:
- "This is a great multimeter for the price. It's accurate and reliable, and it's easy to use. I would definitely recommend it to anyone who needs a multimeter." - Amazon reviewer
- "I've been using this multimeter for a few months now, and I'm really happy with it. It's accurate, durable, and easy to use. I would definitely recommend it to anyone who needs a multimeter." - Home Depot reviewer
- "I'm not a professional electrician, but I do a lot of work around the house. This multimeter has been a lifesaver. It's accurate and easy to use, and it's helped me troubleshoot a lot of electrical problems." - Lowe's reviewer
My thoughts:
The Extech EX505 is a great multimeter for the price. It's accurate, reliable, and easy to use. It's also durable and compact, making it a great choice for both home and professional use. However, it is a bit pricey, and it's not as user-friendly as some other multimeters. Overall, I would definitely recommend the Extech EX505 to anyone who needs a multimeter.
Here are some additional thoughts I have about the Extech EX505:
- I like that the Extech EX505 has a wide range of measurements, including AC/DC voltage, current, resistance, capacitance, and frequency. This makes it a versatile multimeter that can be used for a variety of applications.
- I also like that the Extech EX505 has a backlit display. This makes it easy to read the readings in low-light conditions.
- However, I do wish that the Extech EX505 was a bit more user-friendly. The instructions can be a bit confusing, and it can be difficult to find the right setting for some measurements.
Overall, I think the Extech EX505 is a great multimeter. It's accurate, reliable, and durable. However, it is a bit pricey, and it's not as user-friendly as some other multimeters. If you're looking for a versatile and accurate multimeter, the Extech EX505 is a great option.
Extech EX505 Where To Buy
some places where you can buy the Extech EX505 and spare parts:
- Extech Direct: This is the manufacturer's website, so you can be sure that you are getting an authentic product. They also offer a variety of spare parts, so you can keep your meter in good working order.

- Walmart: Walmart is a great place to find electronics at a good price. They usually have a good selection of Extech meters, and they often have coupons or sales.

- Amazon: Amazon is another great place to find electronics. They have a wide selection of Extech meters, and they often have competitive prices.

- Best Buy: Best Buy is a good option if you want to buy your meter in person. They have a good selection of Extech meters, and they offer free shipping on orders over $35.

- Lowes: Lowes is another good option if you want to buy your meter in person. They have a good selection of Extech meters, and they offer free shipping on orders over $45.

- eBay: eBay is a good option if you are looking for a used Extech meter or spare parts. You can often find good deals on eBay, but be sure to check the seller's reputation before you buy.

I hope this helps!
Extech EX505 Problems and Solutions
some common issues and solutions for the Extech EX505 multimeter from experts:
- The multimeter is not turning on.
- Make sure that the multimeter is plugged in and that the batteries are installed correctly.
- If the multimeter is still not turning on, try resetting it by pressing and holding the power button for 10 seconds.
- The multimeter is not displaying accurate readings.
- Make sure that the leads are properly connected to the multimeter.
- Check the batteries to make sure that they are not old or weak.
- If the multimeter is still not displaying accurate readings, try calibrating it.
- The multimeter is giving an error message.
- Refer to the multimeter's manual to see what the error message means.
- If you are still not sure what the error message means, contact Extech customer support for assistance.
Here are some additional tips for troubleshooting common Extech EX505 multimeter problems:
- Make sure that you are using the multimeter in the correct mode for the measurement you are trying to make.
- If you are measuring a current, make sure that the leads are connected in the correct order.
- If you are measuring a voltage, make sure that the leads are not touching each other.
- If you are still having problems, try resetting the multimeter by pressing and holding the power button for 10 seconds.
I hope this helps!

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