Will this detect if there is radiation in seafood that's in it's package, like in the supermarket or if seafood in a restaurant is safe to eat?

Yes-If you menu dive on this 500+ there is a “food testing” setting that will allow one to test food for beta or gamma. I’ve personally not used that feature. This has 2 Geiger Muller tubes, on for low frequency, (for simplicity, under 100cpm will take over. There are people out there who know much more than I regarding the accuracy of this particular device reading super low level radiation. But, if you set this one to its slowest count, 60second readings, it says after 1minute of reading the item or piece of food that it’s accurate to +/-5% accuracy.

Will this detect radiation from a smart house? Phones, lights. Doorbells, routers.smoke detectors etc.

No. It detects nuclear radiation not electromagnetic frequencies. Specifically beta, gamma and X-ray emissions. The 600 will detect alpha, beta, gamma and X-ray.

Is there an android version of the app ?

Cellphones won't work in a nuclear apocalypse

Does it have GPS inside?

No. Only GMC-510, GMC-520 has GPS feature.

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Description

⚡ Stay ahead of the invisible threat with precision and power!

POWER THAT KEEPS UP - High-capacity rechargeable battery means you’re always ready, no downtime
AUDIO ALERTS OUTPUTS - Onboard speaker and audio output keep you instantly informed, hands-free
SEAMLESS DATA MANAGEMENT - Built-in flash memory with unlimited server logging for real-time global data access
CRYSTAL CLEAR DATA DISPLAY - Large, auto-orienting LCD ensures you never miss critical readings
NEXT LEVEL RADIATION DETECTION - Dual Geiger tubes push detection range 10x higher than standard models

The GQ GMC-500Plus is a cutting-edge nuclear radiation detector featuring dual Geiger tubes for 10x enhanced detection range, a large auto-orienting LCD display, built-in flash memory with unlimited server logging, and a powerful rechargeable 2600mAh lithium battery. Designed for professionals who demand accuracy, real-time data access, and reliable alerts in a sleek, lightweight form factor.

Specifications

Brand	GQ
Manufacturer	GQ Electronics
Model number	GMC-500Plus
Colour	white
Number of Memory Sticks	1
Item Weight	49.9 g
Product Dimensions	12.7 x 7.62 x 2.54 cm; 49.9 g
Batteries	1 Lithium Metal batteries required. (included)
Item model number	GMC-500Plus
Item Height	1 Inches
Item Width	3 Inches
Included Components	Nuclear Radiation Detector Monitor Dosimeter
Are batteries included?	Yes
Lithium battery energy content	2600 Milliamp Hours (mAh)
Lithium Battery Packaging	Batteries contained in equipment
Lithium battery voltage	3.6 Volts
Lithium battery weight	0.8 Grams
Number of lithium ion cells	1
Number of lithium metal cells	1

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