Can it be used to check the radiation level for seafood such as fish or shellfish?

I'm not certain but one of the photos shows fish and radiation symbol. This implies fish can be tested which is useful.

what is the responding time, 5 second, 10second, 1 minutes......?

I didn't time it, but probably 3 seconds. You push the pad on the screen, it flashes a couple times and gives the reading.

What all does this machine test for? Does it chech ph levels, heavy metals, arsenic etc?

This machine test only nitrate concentration in foods. I have test fresh vegetable and for me the results was acceptable.

The greentest website has eco and eco2 , which one is this?

EKO-2 (with radiation levels check).

Greentest Test Your Food Quality At Any Time

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

⚡ Stay ahead of food risks—test smarter, live safer!

NO BATTERIES NEEDED - Ready to use anytime without the hassle of charging or replacing batteries—effortless reliability.
GLOBAL COMPATIBILITY - Designed for international use, perfect for the jet-setting professional mindful of food quality worldwide.
DUAL SENSOR PRECISION - Advanced technology detects harmful nitrates and radiation for peace of mind in every bite.
INSTANT FOOD SAFETY CHECK - Empower your meals with real-time nitrate and radiation testing—know what you eat, always.
ULTRA LIGHT POCKET READY - At just 45.4 grams, carry your personal food guardian wherever life takes you.

Greentest Eco 5 is a sleek, lightweight food quality monitor that instantly detects nitrate levels and radiation in your food. Designed for on-the-go professionals, it offers portable, battery-free operation and international usability, ensuring you never compromise on food safety no matter where you are.

Specifications

ASIN	B01FJ9722K
Batteries Required?	No
Batteries included?	No
Customer Reviews	3.6 3.6 out of 5 stars (43)
Date First Available	27 July 2016
Guaranteed software updates until	unknown
Item Weight	45.4 g
Item model number	WDFRDATION-1
Manufacturer	Greentest
Package Dimensions	16.21 x 8.79 x 4.19 cm; 45.36 g
Part number	WDFRDATION-1

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Greentest, Test Your Food Quality at Any Time

Description

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