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  • Amprobe AM-240 Autoranging Multimeter with Temperature
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Amprobe AM-240 Autoranging Multimeter with Temperature

by Amprobe
5 customer reviews
| 3 answered questions

List Price: $69.95
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  • Digital multimeter measures AC/DC current to 10 amps, AC/DC voltage to 600V, resistance to 40 megaohms, capacitance to 4,000 microfarads, and frequency to 10 megahertz (MHz)
  • Comes with a set of test leads for measuring voltage, capacitance, resistance, and frequency, as well as a K-type thermocouple probe for measuring temperature
  • Dual-display LCD screen shows current and voltage
  • Replaceable fuse for protecting current-measuring circuits
  • Features temperature measurement, microamps measurement, maximum reading mode, audible continuity sensor, diode test, data hold, relative zero, auto power-off mode, low-battery indicator, and a tilt stand
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Frequently Bought Together

Amprobe AM-240 Autoranging Multimeter with Temperature + Amprobe TL35B Test Lead with Alligator Clips
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Technical Details

  • Automatic, positive implied, negative polarity indication

Product Description

The Amprobe AM-240 Autoranging Multimeter with Temperature Sensor has autoranging and manual controls for measuring temperature, current, voltage, capacitance, resistance, duty cycle, and frequency in HVAC and industrial electrical testing applications. The meter measures AC/DC current to 10 amps, AC/DC voltage to 600V, capacitance to 4,000 microfarads, resistance to 40 megaohms, duty cycle from 0.1 to 99.9 percent at frequencies lower than 10 kHz, and frequency to 10 MHz. A K-type thermocouple probe with banana plug measures temperature from -58 to 1,382 degrees F (-50 to 700 degrees C) with a resolution of one degree. The dual-display LCD screen shows current and voltage. Included test leads measure circuit voltage, capacitance, resistance, frequency, and duty cycle, and test for continuity and proper functioning of circuit diodes. The microamps measurement feature has a 0.1 microamp resolution at the 400 microamp range, and a 1 microamp resolution at the 4,000 microamp range for identifying small current changes. The maximum reading mode displays the highest measurement in a session, and an audible continuity buzzer confirms that a circuit is capable of conducting current. The data hold function keeps the desired reading on the display after disconnecting the probe. A relative zero mode stores a reading in memory to use as a zero point for subsequent readings, an auto power-off mode turns off the unit after 30 seconds of non-use to conserve battery life and can be disabled, and a low-battery indicator signals when the meter's batteries need to be replaced. A tilt stand holds the meter at an angle for reading.

This average sensing, or average responding, meter provides accurate readings when measuring linear loads where the current or voltage has a sinusoidal waveform, such as standard induction motors and incandescent lights. The meter has a 4,000-count resolution, meaning that it can display up to 4,000 units (3-3/4 digits) before the operating range needs to be changed. It meets International Electrotechnical Commission (IEC) safety standard 61010, and is certified for Category III up to 600V. This certification covers items used with enclosed building circuit installations, such as service panel parts, branch circuits, and fixed installations that are connected directly to a building's AC power supply. It operates on two AA batteries (installed).

Specifications

AC/DC current operating ranges 400.0 microamps, 4000 microamps, 40.00 milliamps (mA), 400.0 mA, 4.000 A, 10.00 A
AC/DC voltage operating ranges 400 millivolts (mV), 4.000 V, 40.00 V, 400.0 V, 600 V
Resistance operating ranges 400.0 ohms, 4.000 kilohms, 40.00 kilohms, 400.0 kilohms, 4.000 megaohms, 40.00 megaohms
Capacitance operating ranges 40.00 nanofarads (nF), 400.0 nF, 4.000 microfarads, 40.00 microfarads, 400.0 microfarads, 4000 microfarads
Frequency 10.00 Hz, 100.0 Hz, 1000 Hz, 10.00 kHz, 100.0 kHz, 1000 kHz, 10 MHz
Duty cycle 0.1 to 99.9 percent at frequencies lower than 10 kHz
AC microamps operating range 400.0 microamps, 4000 microamps
DC microamps operating range 400.0 microamps, 4000 microamps
Temperature operating range -58 to 1,382 degrees F (-50 to 750 degrees C)
Power supply 1.5V AA batteries (two, installed)
Dimensions 6.1 x 3.4 x 1.5 inches (156 x 86 x 38 mm) (H x W x D)
Weight 9.2 oz. (260g), including battery

H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Electrical test meters report electrical circuit properties, such as voltage, resistance, capacitance, and continuity. Available in handheld or benchtop form, they troubleshoot electrical problems in equipment, wiring, and power supplies. A variety of probes, clamps, and leads can be used to connect the meter to a circuit or device. Single-function meters, such as battery testers and voltage testers, measure one property of a circuit, and multimeters measure multiple properties. Electrical test meters display information either in analog form using a needle that moves on a calibrated scale, or in digital form using digits or a graphic representation on an LCD screen. Electrical properties that are to be measured and the anticipated range of results determine meter choice. Choose a meter with a rating that is higher than the maximum value of the anticipated range. An electrical test meter has multiple settings corresponding to potential ranges of values for the properties it can measure. A manual ranging meter requires the operator to flip through different settings until the correct range is reached. An auto-ranging meter cycles through range settings automatically until it reaches the correct range.

Amprobe manufactures electrical testing equipment for commercial, industrial, and home use. The company was founded in 1948 and is headquartered in Everett, WA.

What’s in the Box?

  • Amprobe AM-240 Autoranging Multimeter
  • K-type thermocouple
  • Test leads
  • AA batteries (two, installed)
  • Instructions


Product Information

Technical Details
Part Number 2730933
Item Weight2 pounds
Product Dimensions8.4 x 6.2 x 0.5 inches
Item model numberAM-240
Size10 x 6 x 1.5
Item Package Quantity1
Temperature Range-58/1382 °F
Measurement Accuracy+/- 8 F
Display StyleLiquid Crystal Display (LCD)
Special FeaturesAutomatic, positive implied, negative polarity indication
  
Technical Specification
Additional Information
ASINB000GBKEKO
Best Sellers Rank #244,577 in Home Improvement (See top 100)
Shipping Weight1 pounds (View shipping rates and policies)
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item is not eligible for international shipping. Learn More
Date First AvailableSeptember 22, 2010
  
Warranty & Support

Product Warranty: For warranty information about this product, please click here
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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

By P. Lee on March 30, 2014
Verified Purchase
It works very well. My air-conditioner was broken down last year and all my old meters could not help me on figuring out the problem. A friend of mine told me what functions that I needed in a meter in order to do the job. I found this one and it works great. Also the price was great too. After I fixed my air-conditioner, I saw this meter available in a home center but the price was double of what I have paid for.
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By Roger D. Urban on March 19, 2015
Verified Purchase
a very good fit between a Fluke brand meter and low cost junk meters. Good quality and a good price. Comes with basic pointy leads so I did upgrade and purchased a full set of leads with more functions from Amazon. The ones I bought are Extech TL809 Electronic Test Lead Kit because I used these before retiring. I'm sure other kits would also do the job.
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Verified Purchase
I tested the unit in each mode and it worked as advertised. I can't say anything more until I've had it for a while. It replaced a 20 year old Fluke that still works but has less function.
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0 of 1 people found the following review helpful By George on September 27, 2014
Very good choice for a beginner , so he can learn to buy a decent brand next time. worked ok for 2 months then started to freeze - does not turn on unless you close it and retry several times - bad readings - random displays..
not recommended at all
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0 of 2 people found the following review helpful By Had to buy 2 IPads to get 1 on January 21, 2013
Verified Purchase
It's an ok meter that does what you need it too. The uncomfortable part for me is the continuity setting. When you switch it to continuity, it takes 3 or 4 seconds to respond. I don't like the time lag, when working with electrical. I don't care what the setting is on, if it delays, it is scary!!
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