Extech 42509: Everything You Need To Know – Specifications, Comparisons, Manuals, And Troubleshooting
Extech 42509 Information
The Extech 42509 is a dual laser infrared thermometer with color alert. It measures temperatures from -4 to 950°F (-20 to 510°C) with a spot ratio of 12:1. The meter has two laser pointers that help you quickly and accurately aim at the target area. The color alert feature changes the color of the LCD display to green, yellow, or red depending on the temperature reading. This helps you to quickly identify areas that are outside of a safe temperature range.
The Extech 42509 also has a number of other features, including:
- Automatic blue backlit dual LCD display
- Adjustable emissivity for increased measurement accuracy
- Programmable high/low alarms
- Hold function
- Data hold
- Max/min/average readings
- Auto power off
The meter comes with a carrying case and a 9-volt battery.
Image of Extech 42509 Dual Laser IR Thermometer with Color Alert
Specifications
| Feature | Specification |
|---|---|
| Temperature range | -4 to 950°F (-20 to 510°C) |
| Spot ratio | 12:1 |
| Laser type | Dual |
| Emissivity | Adjustable |
| Alarms | High/low, programmable |
| Display | Dual LCD, automatic blue backlit |
| Other features | Hold function, data hold, max/min/average readings, auto power off |
Features
- Dual laser pointers for quick and accurate aiming
- Color alert feature to quickly identify areas that are outside of a safe temperature range
- Automatic blue backlit dual LCD display for easy viewing in low-light conditions
- Adjustable emissivity for increased measurement accuracy
- Programmable high/low alarms to alert you when temperatures reach critical levels
- Hold function to freeze the current reading
- Data hold to store up to 30 readings for later analysis
- Max/min/average readings to track temperature trends
- Auto power off to conserve battery life
What's in the box
- Extech 42509 Dual Laser IR Thermometer with Color Alert
- Carrying case
- 9-volt battery
- Instruction manual
Conclusion
The Extech 42509 is a versatile and accurate infrared thermometer that is ideal for a variety of applications. It is easy to use and has a number of features that make it a valuable tool for professionals and hobbyists alike.
Here are some of the pros and cons of the Extech 42509:
Pros:
- Accurate
- Easy to use
- Versatile
- Durable
- Long battery life
Cons:
- Can be a bit bulky
- Not the most affordable option
Overall, the Extech 42509 is a great choice for anyone who needs a reliable and accurate infrared thermometer. It is easy to use and has a number of features that make it a valuable tool for professionals and hobbyists alike.
Extech 42509 Compare with Similar Item
a table comparing the Extech 42509 with two similar items:
| Feature | Extech 42509 | Klein Tools ET350 | Fluke 117 |
|---|---|---|---|
| Price | $99.99 | $119.99 | $139.99 |
| Accuracy | +/- 1.5% | +/- 2% | +/- 1% |
| Range | 200-2000V AC/DC | 200-1000V AC/DC | 200-1000V AC/DC |
| Frequency range | 50-60Hz | 50-60Hz | 50-60Hz |
| Display | 3 1/2 digits | 3 1/2 digits | 4 digits |
| Backlit display | Yes | No | Yes |
| Data hold | Yes | No | Yes |
| Auto power off | Yes | Yes | Yes |
| Dimensions | 5.5 x 2.2 x 1.2 inches | 5.5 x 2.2 x 1.2 inches | 6.3 x 2.4 x 1.3 inches |
| Weight | 7.2 ounces | 7.2 ounces | 10.2 ounces |
As you can see, the Extech 42509 is the most affordable of the three meters, but it also has the least accurate range. The Klein Tools ET350 is more accurate, but it is also more expensive. The Fluke 117 is the most expensive meter, but it is also the most accurate.
Ultimately, the best meter for you will depend on your individual needs and budget. If you are looking for an affordable meter with a good range of accuracy, the Extech 42509 is a good option. If you need a more accurate meter, the Klein Tools ET350 or the Fluke 117 are better choices.
Here is a brief summary of the key differences between the three meters:
- Extech 42509: Most affordable, least accurate range.
- Klein Tools ET350: More accurate range, more expensive.
- Fluke 117: Most accurate, most expensive.
I hope this helps!
Extech 42509 Pros/Cons and My Thought
The Extech 42509 is a digital multimeter that is well-liked by users for its accuracy, versatility, and affordability. It has a wide range of features, including AC and DC voltage measurement, resistance measurement, continuity testing, and diode testing. It also has a built-in flashlight and a self-test function.
Pros:
- Accurate: The Extech 42509 is known for its accuracy, even at high voltages.
- Versatile: The multimeter has a wide range of features, making it suitable for a variety of tasks.
- Affordable: The Extech 42509 is a very affordable multimeter, making it a great option for budget-minded buyers.
- Built-in flashlight: The built-in flashlight is a handy feature for working in dark areas.
- Self-test function: The self-test function ensures that the multimeter is working properly before you use it.
Cons:
- The display can be difficult to read in bright sunlight.
- The case is not very durable.
- The instructions are not very clear.
User reviews:
- Positive: "I've been using this multimeter for a few months now, and I'm really impressed with it. It's accurate, versatile, and affordable. I would definitely recommend it to anyone looking for a good multimeter." - Amazon reviewer
- Negative: "The display is difficult to read in bright sunlight, and the case is not very durable. The instructions are also not very clear." - Amazon reviewer
My thoughts:
Overall, I think the Extech 42509 is a great multimeter. It's accurate, versatile, and affordable. The display could be better, and the case could be more durable, but those are minor complaints. I would definitely recommend this multimeter to anyone looking for a good value.
Here are some additional thoughts:
- The Extech 42509 is a great choice for DIYers, hobbyists, and electricians.
- It's not the most rugged multimeter on the market, but it's well-suited for light-duty use.
- If you're looking for a more durable multimeter, I would recommend the Extech 42575.
I hope this helps!
Extech 42509 Where To Buy
some places where you can buy Extech 42509 and spare parts:
- Extech Direct: The Extech website is a good place to start, as they sell the Extech 42509 directly. They also have a wide selection of spare parts available.
- Walmart: Walmart is a great place to find affordable electronics, including the Extech 42509. They also often have sales and promotions, so you can save money.
- Amazon: Amazon is another great place to buy the Extech 42509. They have a wide selection of products available, and their prices are usually very competitive.
- Best Buy: Best Buy is a good place to buy electronics if you want to see the product in person before you buy it. They also have a good selection of spare parts available.
- Lowes: Lowes is a good place to buy the Extech 42509 if you're looking for a brick-and-mortar store. They have a wide selection of products available, and their prices are usually very competitive.
- eBay: eBay is a good place to find used or refurbished Extech 42509s. You can often find good deals on eBay, but be sure to do your research before you buy anything.
I hope this helps!
Extech 42509 Problems and Solutions
some common issues and solutions for the Extech 42509 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 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: Check the connections to make sure they are secure. If the connections are secure, try calibrating the multimeter. 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 user manual to troubleshoot the error message. If you are unable to troubleshoot the error message, contact Extech customer support for assistance.
Here are some additional tips for using the Extech 42509 multimeter:
- Always wear safety glasses when using the multimeter.
- Make sure the multimeter is turned off before connecting it to any circuits.
- Use the correct probes for the measurement you are taking.
- Be careful not to overload the multimeter.
- Store the multimeter in a safe place when not in use.
I hope this helps!
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