Greentest 2F, 3F, ECO 4 and ECO 6F: what is the difference?

Greentest 2F: when nitrates are the main task

Greentest 2F is the basic model for checking food for nitrates. It suits buyers who do not need a dosimeter or a separate water check, but want to screen vegetables, fruit, berries and other products available in the device menu.

If your main scenario is checking fresh produce from a market, supermarket or home kitchen, Greentest 2F is usually enough.

Greentest 3F: nitrates plus water check

Greentest 3F adds a water evaluation function to nitrate testing. This is convenient if you want one device for both produce and household water used for filters, kettles or cooking.

It is a good compromise when a dosimeter is not a priority, but the water function is genuinely useful.

Greentest ECO 4: nitrates and radiation background

Greentest ECO 4 is aimed at users who need a household radiation background check in addition to nitrate testing. This can be useful for products, objects, indoor spaces or travel locations.

If water testing is not important but the dosimeter function is, ECO 4 is the more logical choice.

Greentest ECO 6F: the widest feature set

Greentest ECO 6F combines three core areas: nitrate testing in food, water evaluation and radiation background measurement. It is the most versatile option for a family that wants one device for most everyday checks.

Choose it if you do not want to buy a separate TDS meter or dosimeter later and plan to use the tester regularly.

Short recommendation

For nitrates only, choose Greentest 2F. For nitrates and water, choose Greentest 3F. For nitrates and radiation background, choose Greentest ECO 4. For all three functions in one device, choose Greentest ECO 6F.