--- product_id: 93934272 title: "EMF Meter, Advanced GQ EMF-390 Multi-Field Electromagnetic Radiation Detector 3-in-1 EMF ELF Meter & RF Spectrum Analyzer, Cell Tower Smartmeter Signal Detector RF up to 10G Data Logger" brand: "gq" price: "S/.1161" currency: PEN in_stock: true reviews_count: 13 category: "Gq" url: https://www.desertcart.pe/products/93934272-emf-meter-advanced-gq-emf-390-multi-field-electromagnetic-radiation store_origin: PE region: Peru --- # Built-in real-time RF spectrum analyzer RF detection up to 10 GHz Long-lasting lithium & alkaline battery support EMF Meter, Advanced GQ EMF-390 Multi-Field Electromagnetic Radiation Detector 3-in-1 EMF ELF Meter & RF Spectrum Analyzer, Cell Tower Smartmeter Signal Detector RF up to 10G Data Logger **Brand:** gq **Price:** S/.1161 **Availability:** βœ… In Stock ## Summary > πŸ“‘ Stay ahead of invisible threats β€” measure, monitor, and master your space! ## Quick Answers - **What is this?** EMF Meter, Advanced GQ EMF-390 Multi-Field Electromagnetic Radiation Detector 3-in-1 EMF ELF Meter & RF Spectrum Analyzer, Cell Tower Smartmeter Signal Detector RF up to 10G Data Logger by gq - **How much does it cost?** S/.1161 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/93934272-emf-meter-advanced-gq-emf-390-multi-field-electromagnetic-radiation) ## Best For - gq enthusiasts ## Why This Product - Trusted gq brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Compact & Portable:** Lightweight, wall-mountable design fits seamlessly into any home or office setup - β€’ **Data-Driven Decisions:** Integrated RF Browser and data logger for tracking and analyzing your environment over time - β€’ **Pro-Level Sensitivity:** High-sensitivity sensors identify power lines, smart meters, cell towers & microwaves instantly - β€’ **Instant Safety Insights:** Real-time safety suggestions empower you to reduce invisible radiation exposure effectively - β€’ **Triple Threat Detection:** 3-in-1 EMF, ELF, and RF meter for comprehensive radiation monitoring ## Overview The GQ EMF-390 is a professional-grade 3-in-1 electromagnetic radiation detector combining EMF, ELF, and RF measurement capabilities. It features high-sensitivity sensors capable of detecting frequencies up to 10 GHz, a built-in RF spectrum analyzer with real-time monitoring, and a data logger for tracking exposure trends. Designed for home and office use, it offers instant safety suggestions to help users minimize harmful radiation from common sources like power lines, smart meters, and cell towers. Compact and battery-powered, it’s a trusted tool for health-conscious professionals seeking precise environmental insights. ## Description Product Description The GQ EMF-390 advanced multi-function digital EMF ELF meter (Patent pending) is designed and developed by GQ Electronics, Seattle, USA. It is a portable and convenient device. It can be used in general purpose test, detection and other scientific applications. Such as Power Line, WiFi, Cell phone, Cell tower, Microwave, Smart Meter, etc. The device integrated features include three axis Electromagnetic Fields, Electric Field, Radio Frequency (up to 10Ghz) and a bonus feature RF Spectrum Power Analyzer(six bands up to 2.504Ghz). The meter is able to identify/recognize the common source from EMF/RF measured, such as Power Line, WiFi/Cell phone, Cell tower, Microwave etc. It also comes with built-in audible and visual alarm. It can be used for EMF, ELF, EF, RF detection and monitoring both indoor and outdoor, as well as in other similar environments. The EMF-390 has built-in flash memory for data logging, it can log the real-time data every second with timestamp. The history data can be be downloaded when the device linked to a PC. The free PC software can be downloaded from website. The unique GQ RF Browser feature visualizes the RF radiation precisely on screen. With RF Browser, user is able to see high speed RF signal, such as Smart meter, cell phone transmission, estimates Digital RF transmission data in bytes and RF power spectral histogram. The meter has installed multiple sensors to ensure maximum scale/range measurement and highest accuracy. . With open communication protocol, user is able to send commands to the unit to get all data remotely. This let the device be easier to integrate to any other system, The device is equipped with a USB port, utilized for communication and external power supply/charging of internal rechargeable Li-Ion 3.7V battery. GQ EMF meter is all you need to detect EMF, ELF, EF and RF radiation Specification EMF (Electromagnetic Field) Triple axis (X, Y, Z) Range: 0.0~500mG, 0.0 to 50Β΅T, Resolution: 0. 1mG EF (Electric Field): 0V/m to 1000V/m, Resolution: 1 V/m RF (Radio Frequency Field) Range: 0.02Β΅W/mΒ² ~ 9999mW/mΒ², Resolution: 0.01ΞΌW / mΒ², 1pW/cm Β², 1dB, up to 10GHz. 5 bands RF Spectrum Analyzer. New display maximizes the amount of information All-in-One display lets you see reading from all sensors at once. Advanced features and multi-sensors to ensure best detection from EMF, EF and RF. Compact design for easy testing and measurement. Safety suggestion lets you understand current situation instantly. Radiation source recognition provide fastest way to find out the radiation source. Classic display option is quick to adapt application With traditional analog style display, the data becomes even easier and faster to understand. Left and right vertical bars are also indications of the EF and EMF radiation level in glance. Safety suggestion in large font for easier reading. Real Time clock displays current time for time sensitive testing. Front LED visualizes alarm when triggered. Enriched features support enriched applications Real-Time EMF EF Graph Presents exact changes of EMF and EF radiation level been detected in past 45 seconds. The right side of graph shows a reading for both EMF and EF. RF Spectrum Analyzer Advanced users are able to use built-in RF Spectrum Analyzer to discover the RF signal power in a specific frequency. This graph shows two RF signal that has been detected at same time: Microwave oven and WiFi signal. RF Browser GQ RF Browser is a unique feature of GQ EMF detector. The real-time graph is based on high sensitivity sensors. This graph shows a close by cell phone that just received a text message. Real-Time Power Distribution Histogram RF power distribution is another important factor to let us understand how the RF radiation power distributed during the period. This graph shows the highest RF power is 6.47% of total at 0.049 milliWatts per square meter during the testing period. Unlimited Applications Detecting EMF, ELF, EF, RF from all electronics devices but not limited to. EMF-390 can do more than what you see here. It is not only a tool, but also a teacher. User will learn and discover invisible world from it. Review: Accurate and simple to use 3 in 1 (EMF/EF/RF) meter - This meter is half the price of equivalent competitors and provides everything a budding home worker or concerned parent could possibly need. Easy to use and sensitive enough to be able to easily sense check that the meter readings are reliable (which they are with mine). Super accurate in fact, especially when held correctly (as shown in small printed instructions). I wanted it to check my home office and particularly the electric / electromagnetic field fields and radio frequencies (aka WiFi exposure) at my desk & kitchen table (for home working under lock down). With some small changes was able to reduce our exposure to all forms of invisible radiation by more than 10 times. Also was able to see change in RF in real time as I used WiFi on my iPad. I already knew that you should not hold your iPad in your hands and use WiFi but the results were an eye opener. Needless to say my desktop computer is not connected by Ethernet cable and favoured (whenever possible) over the iPad. I have also move the modem (which is really harmful at short range, shit these things should come with a serious health warning!) as far from me as possible. This device is a God send and only after I had bought this meter did I watch 'Better Call Saul'. So glad I went for this meter and would recommend to anyone remotely concerned about their health with all the debate raging over 5G Review: very useful - This was bought for several purposes , including an educational one. 3 modes and several settings are presented with differing information being able to be displayed. The accuracy of measurement is always a difficult one to prove without spending loads of money on certified kit but comparison to friends much more expensive hardware and my own spectrum analysers show similar results. The unit presents information on the radiating source (wifi, cell tower etc) which has proven to be useful and you can focus on certain bands of the spectrum as well as the automated scans. navigating the menus is not that intuitive so I would recommend spending some time with the manual and online research . In the basic mode it is great for use in comparative measures , the display is grey and black, not high deff but good enough and battery life is extremely good . manufacture support is accessible and helpful. a nice case, wrist strap and credit card references outlining good and bad levels of exposure is also useful. You can customise the alarms and led warning as well as some of the settings but you do not get on screen help so need to read the manual ## Features - Multiple high sensitivity sensors installed for detecting Power line, Smart meter, Cell phone, Microwave etc. - Identify/recognize the common possible sources, such as Power line, Cell Tower, Microwave, Static etc. - Safety suggestion lets you understand current situation instantly. - RF up to 10Ghz and EMF up to 400Khz - Built-in RF Spectrum analyzer and GQ RF Browser for real time RF monitoring. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07JGJ897T | | Antenna Location | Electromagnetic Field and Radio Frequency Detection, Security, Automation | | Battery Description | Lithium (9v, lithium_ion) and alkaline (lr44) | | Best Sellers Rank | 75,748 in DIY & Tools ( See Top 100 in DIY & Tools ) 6 in Spectrum Analysers 716 in Scanners & Testers | | Brand | GQ | | Colour | Gray | | Compatible Devices | Computer, Smart Home System | | Country of Origin | USA | | Customer Reviews | 4.5 out of 5 stars 3,188 Reviews | | Frequency | 10 GHz | | Item Dimensions D x W x H | 2.5D x 7.6W x 14H centimetres | | Item Weight | 10 Ounces | | Item weight | 10 Ounces | | Manufacturer | GQ Electronics LLC | | Maximum Range | 10 Metres | | Maximum range | 10 Metres | | Model Number | EMF-390 | | Mounting Type | Wall Mount | | Mounting type | Wall Mount | | Number of Batteries | 1 LR44 batteries required. | | Operating Temperature | 5 Degrees Celsius | | Part Number | EMF-390 | | Power source | Corded Electric | | Temperature Range | 5 Degrees Celsius | | UPC | 723794245272 723794245364 | ## Product Details - **Brand:** GQ - **Colour:** Gray - **Item weight:** 10 Ounces - **Maximum range:** 10 Metres - **Power source:** Corded Electric ## Images ![EMF Meter, Advanced GQ EMF-390 Multi-Field Electromagnetic Radiation Detector 3-in-1 EMF ELF Meter & RF Spectrum Analyzer, Cell Tower Smartmeter Signal Detector RF up to 10G Data Logger - Image 1](https://m.media-amazon.com/images/I/61l-2OpLOHL.jpg) ![EMF Meter, Advanced GQ EMF-390 Multi-Field Electromagnetic Radiation Detector 3-in-1 EMF ELF Meter & RF Spectrum Analyzer, Cell Tower Smartmeter Signal Detector RF up to 10G Data Logger - Image 2](https://m.media-amazon.com/images/I/61lEgPEFfpL.jpg) ![EMF Meter, Advanced GQ EMF-390 Multi-Field Electromagnetic Radiation Detector 3-in-1 EMF ELF Meter & RF Spectrum Analyzer, Cell Tower Smartmeter Signal Detector RF up to 10G Data Logger - Image 3](https://m.media-amazon.com/images/I/71IH-8TGHpL.jpg) ![EMF Meter, Advanced GQ EMF-390 Multi-Field Electromagnetic Radiation Detector 3-in-1 EMF ELF Meter & RF Spectrum Analyzer, Cell Tower Smartmeter Signal Detector RF up to 10G Data Logger - Image 4](https://m.media-amazon.com/images/I/812JMf1HgcL.jpg) ![EMF Meter, Advanced GQ EMF-390 Multi-Field Electromagnetic Radiation Detector 3-in-1 EMF ELF Meter & RF Spectrum Analyzer, Cell Tower Smartmeter Signal Detector RF up to 10G Data Logger - Image 5](https://m.media-amazon.com/images/I/71ys3tLPNCL.jpg) ## Questions & Answers **Q: Does it detect ultrasonic sound frequencies? Like the mosquito alarm?** A: No, only EMF / RF, electro magnetic spectrum not sound waves **Q: Will this equipment detect electricity pylons for say up to 1 mile ? (i want to know before I purchase a new house)** A: It really depends on the strength of the electromagnetic field being generated. An electromagnetic field decreases exponentially over distance, as a result I would suggest that a pylon carrying 400KV a mile away would be undetectable over the earths natural magnet field. This device is capable of detecting emissions from TV's, computers and other electrical systems within the home. So in short the answer is no. If the pylon your concerned about is about a mile away I'm sure it would have no detrimental affect whatsoever. **Q: Can this device function as a Geiger counter in the event of a nuclear incident please?** A: No, definitely not. It measures electromagnetic radiation up to 10GHz, not nuclear radiation. It is mainly useful for detecting dangerous levels of non-ionising radiation from mobile phones, smart devices in general and. Microwave cookers etc. They do a Geiger counter version that does detect nuclear radiation. It detects beta and gamma radiation that would be emitted by a nuclear explosion but not alpha particles resulting from breathing in radioactive dust. However, beta and gamma radiation detection is generally the best indication of a nuclear event. **Q: What is the maximum time period of data that can be recorded on onboard flash memory and transfered to PC?** A: It is about 24Hrs for every seconds data. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Accurate and simple to use 3 in 1 (EMF/EF/RF) meter *by R***Z on 3 July 2020* This meter is half the price of equivalent competitors and provides everything a budding home worker or concerned parent could possibly need. Easy to use and sensitive enough to be able to easily sense check that the meter readings are reliable (which they are with mine). Super accurate in fact, especially when held correctly (as shown in small printed instructions). I wanted it to check my home office and particularly the electric / electromagnetic field fields and radio frequencies (aka WiFi exposure) at my desk & kitchen table (for home working under lock down). With some small changes was able to reduce our exposure to all forms of invisible radiation by more than 10 times. Also was able to see change in RF in real time as I used WiFi on my iPad. I already knew that you should not hold your iPad in your hands and use WiFi but the results were an eye opener. Needless to say my desktop computer is not connected by Ethernet cable and favoured (whenever possible) over the iPad. I have also move the modem (which is really harmful at short range, shit these things should come with a serious health warning!) as far from me as possible. This device is a God send and only after I had bought this meter did I watch 'Better Call Saul'. So glad I went for this meter and would recommend to anyone remotely concerned about their health with all the debate raging over 5G ### ⭐⭐⭐⭐⭐ very useful *by N***K on 5 October 2021* This was bought for several purposes , including an educational one. 3 modes and several settings are presented with differing information being able to be displayed. The accuracy of measurement is always a difficult one to prove without spending loads of money on certified kit but comparison to friends much more expensive hardware and my own spectrum analysers show similar results. The unit presents information on the radiating source (wifi, cell tower etc) which has proven to be useful and you can focus on certain bands of the spectrum as well as the automated scans. navigating the menus is not that intuitive so I would recommend spending some time with the manual and online research . In the basic mode it is great for use in comparative measures , the display is grey and black, not high deff but good enough and battery life is extremely good . manufacture support is accessible and helpful. a nice case, wrist strap and credit card references outlining good and bad levels of exposure is also useful. You can customise the alarms and led warning as well as some of the settings but you do not get on screen help so need to read the manual ### ⭐⭐⭐⭐ EF not accurate due to response to our body *by M***N on 1 April 2025* Excellent device BUT for some reason the EF reading jumps up to very high readings the moment I'm near it, touch it or hold it!!? I've read the instructions, hold it at the bottom where it's supposed to be held and keep it away from my body whilst holding it, but still it jumps up. How can I get an accurate RF reading if this keeps happening!?? I'm not sure whether to send back or does it need to be calibrated!? That being said its a great little detector with lots of great features. ## Frequently Bought Together - EMF Meter,Advanced GQ EMF-390 Multi-Field Electromagnetic Radiation 3-in-1 EMF ELF RF meter, 5G Cell Tower Smart meter Wifi Signal Detector RF up to 10GHz with Data Logger and 2.5Ghz Spectrum Analyzer - Radiation Nation: Fallout of Modern Technology - Your Complete Guide to EMF Protection & Safety: The Proven Health Risks of Electromagnetic Radiation (EMF) & What to Do Protect Yourself & Family - TriField EMF Meter Model TF2 – #1 Handheld EMF Detector for 3 Types of Electromagnetic Fields: Radio (RF), Magnetic (MF) and Electric (EF) - Measure 5G, Cell Towers, WiFi, Bluetooth, & Smart Meters --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pe/products/93934272-emf-meter-advanced-gq-emf-390-multi-field-electromagnetic-radiation](https://www.desertcart.pe/products/93934272-emf-meter-advanced-gq-emf-390-multi-field-electromagnetic-radiation) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-06-09*