The Greentest V8 is a versatile handheld device designed to help you monitor the quality and safety of your food by measuring nitrate levels in fruits, vegetables, meat, and fish. Beyond food analysis, this yellow portable tool functions as a multi-purpose sensor capable of detecting ionizing radiation and electromagnetic fields (EMF), allowing you to check the environment around you for potential hazards. It also includes features for testing water hardness via Total Dissolved Solids (TDS) measurements, alongside integrated sensors for tracking ambient temperature and humidity. All these readings are presented on a digital screen with an icon-based menu, making it easy to navigate between different modes using the integrated probe.