---
product_id: 258946332
title: "Extech EMF300 Microwave Leakage Detector - Portable Radiation Meter for Home, Office & Laboratory Safety, Measures Microwave Oven Leakage 2450MHz, Easy-to-Read LCD, Audible Alarm, Battery Included"
brand: "extech"
price: "43185 kr"
currency: ISK
in_stock: true
reviews_count: 5
category: "Extech"
url: https://www.desertcart.is/products/258946332-extech-emf300-microwave-leakage-detector-portable-radiation-meter-for-home
store_origin: IS
region: Iceland
---

# Compact & portable design 2450MHz precise detection Audible & visual alerts Extech EMF300 Microwave Leakage Detector - Portable Radiation Meter for Home, Office & Laboratory Safety, Measures Microwave Oven Leakage 2450MHz, Easy-to-Read LCD, Audible Alarm, Battery Included

**Brand:** extech
**Price:** 43185 kr
**Availability:** ✅ In Stock

## Summary

> 📡 Stay leak-free and worry-free with precision you can trust!

## Quick Answers

- **What is this?** Extech EMF300 Microwave Leakage Detector - Portable Radiation Meter for Home, Office & Laboratory Safety, Measures Microwave Oven Leakage 2450MHz, Easy-to-Read LCD, Audible Alarm, Battery Included by extech
- **How much does it cost?** 43185 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/258946332-extech-emf300-microwave-leakage-detector-portable-radiation-meter-for-home)

## Best For

- extech enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Use Case:** Ideal for home kitchens, offices, labs, and professional inspections alike.
- • **Effortless Operation:** No setup needed—just power on and scan for quick, reliable safety checks.
- • **Instant Safety Alerts:** Loud beeper and bright LCD ensure you never miss unsafe radiation levels.
- • **Pocket-Sized Protection:** Slim, lightweight, and battery-powered for on-the-go peace of mind.
- • **Pinpoint Microwave Radiation:** Accurately measures 2450MHz frequency to detect hidden leaks instantly.

## Overview

The Extech EMF300 is a portable microwave leakage detector designed to measure radiation at the critical 2450MHz frequency. Featuring an easy-to-read LCD, loud audible alarms, and a compact, battery-powered design, it offers fast, reliable detection of microwave oven leaks for home, office, and laboratory safety.

## Description

The EMF300 is a compact microwave leakage detector for measuring high frequency radiation levels. It's easy-to-use, compact microwave leakage detector designed to measure high frequency radiation levels emitted from household and commercial microwave ovens. 0 to 1.999mW/cm² measurement range. Audible alarm and overrange indicator. The EMF300 is complete with 9V battery.

Review: Not in accord with some of the other oppinions. ...
Review: Does not come with USB Power cable/ability

## Features

- Detect Microwave Oven Leakage Fast - Easily measure radiation levels around your microwave to ensure safety in your kitchen, office, or lab. Instantly spot leaks and protect your family, coworkers, or workspace.
- Clear Audible & Visual Alerts - Get peace of mind with loud beeper alarms and a bright LCD display that immediately notify you when unsafe radiation levels are detected near operating microwave ovens.
- Precise 2450MHz Frequency Monitoring - Specifically designed for microwave ovens, this detector accurately measures radiation at the 2450MHz frequency band to help identify hidden leaks that could otherwise go unnoticed.
- Compact & Portable Safety Tool - Slim, lightweight, and battery-powered, the EMF300 fits easily in your pocket or tool bag, making it a convenient companion for technicians, inspectors, and safety-conscious households.
- User-Friendly Design for Everyday Use - No complex setup required—just power on, hold near the microwave, and check results. Perfect for quick safety checks at home, in commercial kitchens, or during professional inspections.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Extech |
| Part number | EMF300 |
| Item Weight | 200 g |
| Product Dimensions | 6.86 x 3.56 x 15.24 cm; 200 g |
| Batteries | 1 Product Specific batteries required. (included) |
| Item model number | EMF300 |
| Color | Green |
| Style | Microwave Leakage Detector |
| Material | ABS |
| Item thickness | 1 Inches |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Included components | Product & Instructions Guide |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |

## Images

![Extech EMF300 Microwave Leakage Detector - Portable Radiation Meter for Home, Office & Laboratory Safety, Measures Microwave Oven Leakage 2450MHz, Easy-to-Read LCD, Audible Alarm, Battery Included - Image 1](https://m.media-amazon.com/images/I/611ZEgF0aqL.jpg)
![Extech EMF300 Microwave Leakage Detector - Portable Radiation Meter for Home, Office & Laboratory Safety, Measures Microwave Oven Leakage 2450MHz, Easy-to-Read LCD, Audible Alarm, Battery Included - Image 2](https://m.media-amazon.com/images/I/71UGM6hrl0L.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Not in accord with some of the other oppinions. ...
*by B***U on 9 December 2015*



### ⭐⭐ Does not come with USB Power cable/ability
*by D***E on 2 July 2019*



### ⭐⭐ Tri-Axyal RF Electric filed meter, but RF field only up to 7GHz (ok for 2.54GHz/5GHz and MW oven)
*by S***Y on 6 April 2022*

Extech 480846: instrument too expensive if bought at full price (about 600 euros, but even more if purchased from electronic distributors), purchased from AmazonWarehouse at a reasonable price (about 190 euros), arrived with original box and in perfect condition. Tested by comparison with instruments of greater precision and cost, both in anechoic chamber and in front of a horn antenna from 500MHz to 8GHz, both as absolute levels and as linearity (I didn't go further). Unfortunately in RF measurements it barely reaches 7GHz, besides it quickly loses sensitivity, but it is still useful for WiFi or microwave ovens. But the worst thing is that the instrument, despite being triaxial, is not isotropic in its measurements, so it is heavily influenced by the orientation, so you forget the absolute measurements :-) At most you can do it before using it in the field. vague idea of ​​how it behaves by measuring known fields and rotating it ... Large display but not backlit (which is very fasdisiosa in the workplace) and simple interface, but that can be improved, for example, it does not keep the time (in my opinion they have not mounted the battery internal that perhaps in some other version existed, no possibility of firmware updates), it would cost little to do so and would increase the class of use. I know the Extech brand and it is a serious company, but I warn you, as usual instrument for non-professional use, but accepting the limits perhaps it is usable (obviously the specifications declared by the manufacturer only absolutely fallacious and illusory). Instrument without internal shielding on electronic circuits, therefore unsuitable for fields over a few V / m. The fact of being able to set a calibration constant is appreciable. Extech 480846: strumento troppo costoso se comprato a prezzo pieno (circa 600euro, ma anche di più se acquistato presso distributori elettronici), acquistato da AmazonWarehouse ad un prezzo ragionevole (circa 190euro), arrivato con scatola originale ed in perfette condizioni. Provato per confronto con strumenti di maggiore precisione e costo, sia in camera anecoica che davanti ad una antenna a tromba da 500MHz a 8GHz, sia come livelli assoluti che come linearità (oltre non sono andato). Purtroppo nelle misure in RF arriva a malapena a 7GHz, oltre perde rapidamente di sensibilità, ma è comunque utile per WiFi o Forni a microonde. Ma la cosa peggiore è che lo strumento, pur essendo triassiale, non è isotropo nelle misure, per cui risente dell'orientazione pesantemente, per cui le misure assolute ve le scordate :-) Al massimo ci si può fare prima di usarlo sul campo una vaga idea di come si comporta misurando campi noti e ruotandolo... Display grande ma non retroiluminato (cosa molto fasdisiosa in ambito lavoro) ed interfaccia semplice, ma migliorabile, ad esempio, non mantiene l'ora (secondo me non hanno montato la pila interna che forse in qualche altra versione esisteva, nessuna possibilità di aggiornamenti firmware), costerebbe poco farlo e ne aumenterebbe la classe d'impiego. Conosco il marchio Extech ed è una casa seria, ma vi avviso, come al solito strumento ad uso non professionale, ma accettando i limiti forse è utilizzabile (ovviamente le specifiche dichiarate dal costruttore solo assolutamente fallaci ed illusorie). Strumento privo di schermature interne sui circuiti elettronici, per cui inadatto a campi oltre pochi V/m. Apprezzabile, il fatto di poter impostare una costante di calibrazione.

## Frequently Bought Together

- Extech EMF300 Microwave Leakage Detector
- Makita DHK180Z 18V LXT Brushless Power Scraper SDS-Plus (Tool Only)
- Midwest U012010 20 Amp Outlet Box with GFCI

---

## 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.is/products/258946332-extech-emf300-microwave-leakage-detector-portable-radiation-meter-for-home](https://www.desertcart.is/products/258946332-extech-emf300-microwave-leakage-detector-portable-radiation-meter-for-home)

---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-20*