Does it detect ultrasonic sound frequencies? Like the mosquito alarm?

No, only EMF / RF, electro magnetic spectrum not sound waves

Will this equipment detect electricity pylons for say up to 1 mile ? (i want to know before I purchase a new house)

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.

Can this device function as a Geiger counter in the event of a nuclear incident please?

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.

What is the maximum time period of data that can be recorded on onboard flash memory and transfered to PC?

It is about 24Hrs for every seconds data.

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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

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

Product ID: 93934272

Details

Brand
GQ
Colour
Gray
Item weight
10 Ounces
Maximum range
10 Metres
Power source
Corded

💾Real-time data logging with timestamp

📊Built-in RF Spectrum Analyzer

📡RF detection up to 10 GHz

€ 240.50

Duties & taxes included

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Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📡 Detect the invisible. Protect your space. Own your health.

PRECISION 3 IN 1 DETECTION - Simultaneously measures EMF, EF, and RF fields with triple-axis sensors for unmatched accuracy.
DATA DRIVEN SAFETY INSIGHTS - Instant safety suggestions and audible/visual alarms keep you informed and empowered to reduce exposure.
NEXT LEVEL RF SPECTRUM ANALYSIS - Visualize and identify radiation sources like cell towers and smart meters in real time with the integrated RF Browser.
COMPACT PROFESSIONAL PORTABLE - Sleek design fits your on-the-go lifestyle, perfect for home, office, or field testing with long battery life.
SEAMLESS DATA LOGGING INTEGRATION - Logs every second with timestamp and supports remote data access via USB and open communication protocols.

The GQ EMF-390 is a cutting-edge, portable 3-in-1 electromagnetic radiation detector combining EMF, electric field, and RF measurements up to 10 GHz. Featuring a built-in RF Spectrum Analyzer and unique RF Browser, it identifies common radiation sources like cell towers and smart meters in real time. With advanced data logging, safety alerts, and multi-sensor precision, it empowers professionals and health-conscious users to monitor and reduce invisible radiation exposure effortlessly.

Specifications

ASIN	B07JGJ897T
Antenna Location	Electromagnetic Field and Radio Frequency Detection, Security, Automation
Battery Description	Lithium (9v, lithium_ion) and alkaline (lr44)
Best Sellers Rank	6,821 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 1 in Spectrum Analysers 287 in Scanners & Testers
Brand	GQ
Colour	Gray
Compatible Devices	Computer, Smart Home System
Country of Origin	USA
Customer Reviews	4.5 4.5 out of 5 stars (3,205)
Frequency	10 GHz
Item Dimensions D x W x H	2.5D x 7.6W x 14H centimetres
Item Weight	10 Ounces
Manufacturer	GQ Electronics LLC
Maximum Range	10 Metres
Model Number	EMF-390
Mounting Type	Wall Mount
Number of Batteries	1 LR44 batteries required.
Number of Items	1
Operating Temperature	5 Degrees Celsius
Part Number	EMF-390
Power source	Corded Electric
Temperature Range	5 Degrees Celsius
UPC	723794245272 723794245364

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