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allsun

ALLOSUN - EM480B Audio Impedance Tester Digital LCD Insulation Resistance Megohmmeter Meter Tester with Bag

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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Jan 31
Order within 23 hours and 25 minutes
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Features

  • Power supplied by 6 pieces 1.5V battery, AA or equivalent.(Battery not provided by seller)
  • The product is with carrying case and belt, which is easy to carry and use.
  • It owns data hold function, auto power off. Protection circuit provided, be able to avoid damage caused by the discharge voltage of the tested load.
  • Test voltage among 250V, 500V and 1000V.
  • Test voltage can be changed by the rotary switch. LED used as normally working indicator under high voltage condition. High ability to withstand high load.

Brand: allsun


Power Source: Battery Powered


Style: Modern Digital


Color: Black, yellow


Item Weight: 0.5 Kilograms


Brand: ‎allsun


Power Source: ‎Battery Powered


Style: ‎Modern Digital


Color: ‎Black, yellow


Item Weight: ‎0.5 Kilograms


Item dimensions L x W x H: ‎6.69 x 2.56 x 4.33 inches


Min. Operating Voltage: ‎250 Volts


Measurement Type: ‎Ohmmeter


UPC: ‎788537553533


Manufacturer: ‎Zhangzhou Eastern Intelligent Meter Co., Ltd


Global Trade Identification Number: ‎33


Product Dimensions: ‎6.69 x 2.56 x 4.33 inches


Item Weight: ‎1.1 pounds


Item model number: ‎EM480B


Is Discontinued By Manufacturer: ‎No


Date First Available: ‎August 10, 2015


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jan 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Good for speaker
It works as expected very eazy with speakers,, but I had a hard time measuring cables to verify that the cables are 75 ohms impedance as stated because those todon cables do not id the cable to identify if its a regular rca or coaxial.
Reviewed in the United States on December 21, 2025 by Redline
    • Can't test individual speakers
Works well, but can't test individual speakers wired at 70v - 1w because impedance too high for this unit.
Reviewed in the United States on July 12, 2025 by Andrew Rios
    • Tested several circuits that I already knew the impedance on, worked great!
No frills, it works, using for 70v speaker installations mostly, tested with several circuits already and it's accurate enough. No frills no extra features but takes accurate readings
Reviewed in the United States on October 28, 2022 by Sam Young
    • Good tester
Was able to quickly diagnose a 70V outdoor distributed sound system.
Reviewed in the United States on October 10, 2023 by Uncle John
    • Good value
It may not have quite the same measurement range as more expensive devices but it is great value for money. Very happy with the purchase and it's already paid for itself in terms of resolving problems.
Reviewed in the United States on March 26, 2022 by Dean Sutton
    • Very poor manufacturing quality
Will not work if I fully screw down the battery cover. Three out of four of the screws are fine, but as soon as I tighten the fourth, it shuts down. That tells me the screws are too long or not properly insulated from the internal electronics. If I didn't need it right away for a job, I would immediately return it. As it is, I'll probably send it back as soon as I'm done with it. I am beyond dismayed that in this day and age, manufacturing on a professional product can be so poor ... show more
Reviewed in the United States on April 16, 2022 by HI Services
    • Easy to use and so far so good on reliability.
looks to be well made. It was accurate on load measurements. So far no issues. Will report back if any issues arise. I like it so far.
Reviewed in the United States on January 10, 2020 by Khaled Elajam
    • Very simple to use and great quality construction
This impedance meter is very simple to use and is great. The case keeps it protected and I am using it to test circuits on a commercial fire alarm system. It gives you the calc to convert to watts in the instructions. Would definitely recommend
Reviewed in the United States on November 11, 2019 by steve rice

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