---
product_id: 25408151
title: "ALLOSUN - EM480B Audio Impedance Tester Digital LCD Insulation Resistance Megohmmeter Meter Tester with Bag"
brand: "allsun"
price: "131033CFA"
currency: XOF
in_stock: true
reviews_count: 8
category: "Allsun"
url: https://www.desertcart.sn/products/25408151-allosun-em480b-audio-impedance-tester-digital-lcd-insulation-resistance-megohmmeter
store_origin: SN
region: Senegal
---

# 250V-1000V Testing 6V Power Supply Portable Carrying Case ALLOSUN - EM480B Audio Impedance Tester Digital LCD Insulation Resistance Megohmmeter Meter Tester with Bag

**Brand:** allsun
**Price:** 131033CFA
**Availability:** ✅ In Stock

## Summary

> 🔍 Test with Confidence: Your Go-To Impedance Tester!

## Quick Answers

- **What is this?** ALLOSUN - EM480B Audio Impedance Tester Digital LCD Insulation Resistance Megohmmeter Meter Tester with Bag by allsun
- **How much does it cost?** 131033CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/25408151-allosun-em480b-audio-impedance-tester-digital-lcd-insulation-resistance-megohmmeter)

## Best For

- allsun enthusiasts

## Why This Product

- Trusted allsun brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Built-in protection circuit to prevent damage from discharge voltage.
- • **On-the-Go Utility:** Includes a durable carrying case and belt for easy transport.
- • **Precision Testing:** Accurate measurements with selectable test voltages of 250V, 500V, and 1000V.
- • **Visual Indicators:** LED indicator for clear visibility during high voltage testing.
- • **User-Friendly Design:** Equipped with a data hold function and auto power-off for convenience.

## Overview

The ALLOSUN EM480B Audio Impedance Tester is a versatile digital megohmmeter designed for professionals. It operates on 6 AA batteries (not included) and features selectable test voltages of 250V, 500V, and 1000V. With a user-friendly design that includes a data hold function, auto power-off, and a protective circuit, this tester ensures safety and accuracy. Its portable carrying case makes it ideal for on-site testing.

## Description

ALLOSUN - EM480B Audio Impedance Tester Digital LCD Insulation Resistance Megohmmeter Meter Tester with Bag: desertcart.com: Industrial & Scientific

Review: 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.
Review: Can't test individual speakers - Works well, but can't test individual speakers wired at 70v - 1w because impedance too high for this unit.

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B013QKIGU6 |
| Best Sellers Rank | #222,313 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #34 in Insulation Resistance Meters |
| Brand | allsun |
| Brand Name | allsun |
| Color | Black, yellow |
| Customer Reviews | 4.3 out of 5 stars 43 Reviews |
| Global Trade Identification Number | 00788537553533 |
| Included Components | Test Lead*1 pair; English Manual; Belt*1;Storage Bag*1; |
| Item Dimensions | 6.69 x 2.56 x 4.33 inches |
| Item Height | 11 centimeters |
| Item Weight | 0.5 Kilograms |
| Item dimensions L x W x H | 6.69 x 2.56 x 4.33 inches |
| Manufacturer | Zhangzhou Eastern Intelligent Meter Co., Ltd |
| Measurement Type | Ohmmeter |
| Minimum Operating Voltage | 250 Volts |
| Model | EM480B |
| Power Source | Battery Powered |
| Style | Modern Digital |
| Style Name | Modern Digital |
| UPC | 788537553533 |

## Product Details

- **Brand:** allsun
- **Power Source:** Battery Powered
- **Style:** Modern Digital
- **Color:** Black, yellow
- **Item Weight:** 0.5 Kilograms

## Images

![ALLOSUN - EM480B Audio Impedance Tester Digital LCD Insulation Resistance Megohmmeter Meter Tester with Bag - Image 1](https://m.media-amazon.com/images/I/61yXdwO0wfL.jpg)
![ALLOSUN - EM480B Audio Impedance Tester Digital LCD Insulation Resistance Megohmmeter Meter Tester with Bag - Image 2](https://m.media-amazon.com/images/I/713bN6J5W-L.jpg)
![ALLOSUN - EM480B Audio Impedance Tester Digital LCD Insulation Resistance Megohmmeter Meter Tester with Bag - Image 3](https://m.media-amazon.com/images/I/71KXHK3yTGL.jpg)
![ALLOSUN - EM480B Audio Impedance Tester Digital LCD Insulation Resistance Megohmmeter Meter Tester with Bag - Image 4](https://m.media-amazon.com/images/I/71bJ-XW7hvL.jpg)
![ALLOSUN - EM480B Audio Impedance Tester Digital LCD Insulation Resistance Megohmmeter Meter Tester with Bag - Image 5](https://m.media-amazon.com/images/I/71ffrza0k8L.jpg)

## Questions & Answers

**Q: Hi we need to check 100V PA sistem, have we to disconect the cables from the amplifier or only turn off th amplifier to do the measurement?**
A: Yes. The output impedance of the amp will throw off your measurements. You should never try to measure line impedance with an amplifier connected, and if the amp is powered up still you will fry the meter.

**Q: Will this test a 70 volt paging horn?**
A: Hi, This meter is to test audio impedance, not to test voltage, and the teste range is 20Ω/200Ω/2000Ω, I don't know the resistance of your 70 volt paging horn, please find it out.
Anyway, I have upload the manual to listing page, you can check the manual for detail. Thank you!

**Q: Does it display reactance (capacitive and/or inductive)?**
A: Inductive. However, it's cheaply made and the one I purchased had to go back. It only worked of you didn't tighten the screws on the battery cover.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good for speaker
*by R***E on December 21, 2025*

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.

### ⭐⭐⭐⭐ Can't test individual speakers
*by A***S on July 12, 2025*

Works well, but can't test individual speakers wired at 70v - 1w because impedance too high for this unit.

### ⭐⭐⭐⭐⭐ Tested several circuits that I already knew the impedance on, worked great!
*by S***G on October 28, 2022*

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

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-01-26*