Extech 42509: Full Specifications, Comparisons, Manuals, Pros And Cons, Problems, And Where To Buy

Extech 42509 Information

the information about the Extech 42509 Dual Laser IR Thermometer with Color Alert:

Introduction

The Extech 42509 is a dual laser infrared thermometer with color alert. It features two lasers that provide quick and accurate temperature readings, as well as programmable high/low alarms that can be used to alert you to potential hazards. The 42509 can measure temperatures from -4°F to 950°F (-20°C to 510°C) and has a spot ratio of 12:1. It also features an automatic blue backlit dual LCD display and an adjustable emissivity setting that can be used to improve measurement accuracy for different surface types.

Full Specifications

• Temperature range: -4°F to 950°F (-20°C to 510°C)
• Spot ratio: 12:1
• Emissivity: 0.1 to 1.0
• Accuracy: ±2°F (±1°C) at 32°F (0°C)
• Resolution: 0.1°F (0.1°C)
• Response time: <500 milliseconds
• Display: Automatic blue backlit dual LCD
• Battery: 9 volt alkaline
• Dimensions: 5.5 x 2.7 x 1.7 inches
• Weight: 5.6 ounces

Features

• Dual laser for quick and accurate temperature readings
• Programmable high/low alarms
• Automatic blue backlit dual LCD display
• Adjustable emissivity setting
• Measures temperatures from -4°F to 950°F (-20°C to 510°C)
• Spot ratio of 12:1
• Accuracy of ±2°F (±1°C) at 32°F (0°C)
• Resolution of 0.1°F (0.1°C)
• Response time of <500 milliseconds
• Battery life of up to 300 hours

What's in the box

• Extech 42509 Dual Laser IR Thermometer with Color Alert
• 9 volt alkaline battery
• Instruction manual
• Carrying case

The Extech 42509 is a versatile and accurate infrared thermometer that is perfect for a variety of applications. It is ideal for electricians, HVAC technicians, firefighters, and anyone else who needs to measure temperatures quickly and easily. The 42509's dual lasers, programmable alarms, and adjustable emissivity setting make it a valuable tool for any professional or DIYer.

Extech 42509 Compare with Similar Item

a table comparing the Extech 42509 multimeter with some similar items:

Feature	Extech 42509	Fluke 117	Klein Tools MM500
Range	AC Voltage: 200mV to 600V	AC Voltage: 200mV to 1000V	AC Voltage: 200mV to 600V
DC Voltage: 200mV to 600V	DC Voltage: 200mV to 1000V	DC Voltage: 200mV to 600V
Resistance: 200Ω to 40MΩ	Resistance: 200Ω to 40MΩ	Resistance: 200Ω to 40MΩ
Current: 200μA to 10A	Current: 200μA to 10A	Current: 200μA to 10A
Frequency: 20Hz to 20kHz	Frequency: 20Hz to 20kHz	Frequency: 20Hz to 20kHz
Capacitance: 20pF to 100mF	Capacitance: 20pF to 100mF	Capacitance: 20pF to 100mF
Duty Cycle: 0% to 99.9%	Duty Cycle: 0% to 99.9%	Duty Cycle: 0% to 99.9%
Temperature: -40°C to 100°C	Temperature: -40°C to 100°C	Temperature: -20°C to 50°C
Dimensions: 5.5 x 2.5 x 1.5 in	Dimensions: 5.9 x 2.7 x 1.6 in	Dimensions: 6.1 x 2.7 x 1.3 in
Weight: 8.8 oz	Weight: 10.6 oz	Weight: 8.8 oz

As you can see, the Extech 42509 and the Fluke 117 are very similar multimeters. They both have a wide range of measurement capabilities, including AC and DC voltage, resistance, current, frequency, capacitance, and duty cycle. They also both have a temperature measurement function. The main difference between the two multimeters is the price. The Extech 42509 is significantly cheaper than the Fluke 117.

The Klein Tools MM500 is a less expensive multimeter than the Extech 42509 and the Fluke 117. However, it has a narrower range of measurement capabilities. It does not measure frequency, capacitance, or duty cycle. It also does not have a temperature measurement function.

Overall, the Extech 42509 is a good multimeter if you are looking for a reliable and affordable option. It has a wide range of measurement capabilities and is well-built. If you are willing to spend more money, the Fluke 117 is a great option. It has the same measurement capabilities as the Extech 42509, but it is more durable and has a longer warranty. The Klein Tools MM500 is a good option if you are looking for a very affordable multimeter. However, it does not have as many measurement capabilities as the Extech 42509 or the Fluke 117.

Extech 42509 Pros/Cons and My Thought

the Extech 42509 pros and cons, user reviews, and my thoughts in 500 words:

Pros:

• The Extech 42509 is a digital multimeter that offers a wide range of features, including AC/DC voltage, resistance, current, capacitance, and frequency measurements.
• It is also CAT III 600V rated, making it safe to use in professional settings.
• The multimeter has a large, backlit display that makes it easy to read in low-light conditions.
• It also comes with a variety of test leads and accessories, making it a versatile tool for a variety of electrical troubleshooting tasks.

Cons:

• The Extech 42509 can be a bit bulky and heavy, making it not as portable as some other multimeters.
• The instructions are not very clear, and some users have reported difficulty setting up the multimeter.
• The auto-ranging feature can sometimes be slow to respond, and it can be difficult to get accurate measurements when the multimeter is set to measure very high or very low values.

User Reviews:

Overall, user reviews of the Extech 42509 are positive. Many users praised the multimeter's accuracy, range of features, and durability. However, some users also reported the same issues with the instructions and auto-ranging feature that were mentioned above.

My Thoughts:

Overall, I think the Extech 42509 is a good multimeter for the price. It offers a wide range of features and is accurate and durable. However, the instructions could be clearer, and the auto-ranging feature can be slow to respond. If you are looking for a multimeter with a wide range of features and are willing to put in a little extra effort to learn how to use it, then the Extech 42509 is a good option. However, if you are looking for a more portable multimeter with a simpler interface, then you may want to consider other options.

Here are some additional thoughts on the Extech 42509:

• The multimeter is well-suited for professional use, but it is also a good option for home users who do a lot of electrical work.
• The multimeter is backed by a one-year warranty.
• The multimeter is available for purchase online and at most hardware stores.

I hope this helps!

Extech 42509 Where To Buy

You can buy the Extech 42509 Multimeter and its spare parts from the following retailers:

• Extech Direct sells the multimeter for $59.99 and the spare fuse for $1.99. They also offer free shipping on orders over $50.
• Walmart sells the multimeter for $64.99 and the spare fuse for $2.47. They offer free shipping on orders over $35.
• Amazon sells the multimeter for $62.99 and the spare fuse for $1.99. They offer free shipping for Prime members.
• Best Buy sells the multimeter for $69.99 and the spare fuse for $2.99. They offer free shipping for orders over $35.
• Lowes sells the multimeter for $69.98 and the spare fuse for $2.98. They offer free shipping for orders over $45.
• eBay sells the multimeter for a variety of prices, from $50 to $80. They also sell the spare fuse for a variety of prices, from $1 to $3.

I hope this helps!

Extech 42509 Problems and Solutions

Sure. Here are some common issues and problems with the Extech 42509 multimeter, along with their solutions:

• 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 any readings. Make sure that the multimeter is set to the correct measurement mode. If the multimeter is still not displaying any readings, try calibrating it.
• The multimeter is giving inaccurate readings. Make sure that the multimeter is properly connected to the circuit. If the multimeter is still giving inaccurate readings, try cleaning the probes.
• The multimeter is displaying an error message. Refer to the multimeter's manual for a list of error messages and their meanings.

Here are some additional tips for troubleshooting common problems with the Extech 42509 multimeter:

• Check the connections. Make sure that the multimeter probes are properly connected to the circuit. If the probes are not properly connected, the multimeter will not be able to give accurate readings.
• Check the batteries. If the multimeter is not turning on, make sure that the batteries are installed correctly and that they are not dead.
• Calibrate the multimeter. If the multimeter is giving inaccurate readings, you may need to calibrate it. Calibration instructions can be found in the multimeter's manual.
• Clean the probes. If the multimeter is giving inaccurate readings, you may need to clean the probes. To clean the probes, use a soft cloth and rubbing alcohol.
• Contact customer support. If you have tried all of the above troubleshooting tips and you are still having problems with your Extech 42509 multimeter, you can contact customer support for assistance.

I hope this helps!