---
product_id: 25408151
title: "ALLOSUN - EM480B Audio Impedance Tester Digital LCD Insulation Resistance Megohmmeter Meter Tester with Bag"
brand: "allsun"
price: "€ 188.92"
currency: EUR
in_stock: true
reviews_count: 8
category: "Allsun"
url: https://www.desertcart.nl/products/25408151-allosun-em480b-audio-impedance-tester-digital-lcd-insulation-resistance-megohmmeter
store_origin: NL
region: Netherlands
---

# Selectable test voltages: 250V, 500V, 1000V Digital LCD with data hold & auto power off 6x AA battery powered for reliable field use ALLOSUN - EM480B Audio Impedance Tester Digital LCD Insulation Resistance Megohmmeter Meter Tester with Bag

**Brand:** allsun
**Price:** € 188.92
**Availability:** ✅ In Stock

## Summary

> ⚡ Empower Your Diagnostics with Precision & Portability!

## 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?** € 188.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/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

- • **Built to Last:** Integrated protection circuit and high load tolerance safeguard your device against damage and ensure durability.
- • **Work Confidently:** LED indicator confirms high voltage operation, giving you real-time assurance during every test.
- • **Portable Powerhouse:** Battery-powered with included carrying case and belt for ultimate on-the-go testing convenience.
- • **Smart Data Handling:** Digital LCD display with data hold function ensures you never miss critical readings during inspections.
- • **Precision Voltage Control:** Easily switch between 250V, 500V, and 1000V test voltages via rotary switch to match your testing needs.

## Overview

The ALLOSUN EM480B is a modern digital insulation resistance megohmmeter designed for professionals needing accurate audio impedance and insulation testing. Powered by six AA batteries (not included), it offers selectable test voltages of 250V, 500V, and 1000V, a clear digital LCD with data hold, and an auto power-off feature. Its robust protection circuit and high load tolerance make it reliable for field use, all packed in a convenient carrying case with belt for easy transport.

## 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/71KXHK3yTGL.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

## Frequently Bought Together

- ALLOSUN - EM480B Audio Impedance Tester Digital LCD Insulation Resistance Megohmmeter Meter Tester with Bag
- Klein Tools VDV500-705 Wire Tracer Tone Generator and Probe Kit for Ethernet, Internet, Telephone, Speaker, Coax, Video, and Data Cables RJ45, RJ11, RJ12

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nl/products/25408151-allosun-em480b-audio-impedance-tester-digital-lcd-insulation-resistance-megohmmeter](https://www.desertcart.nl/products/25408151-allosun-em480b-audio-impedance-tester-digital-lcd-insulation-resistance-megohmmeter)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-20*