Now you can identify unhealthy fruit and vegetables with this portable fruit and vegetable nitrate tester Protect yourself and protect your family Simply insert the probe into your sample Easy-to-read test results in just 3 seconds Greentest works by measuring the electrical conductivity of the fruit or vegetable matter being tested Lower resistance = higher nitrate content The presence of nitrate ions in organic matter measurably increases conductivity. This measurement differs according to the ion concentration and cell structure of the fruit or vegetable under test. Calibrated through extensive testing Our scientists developed the Greentest nitrate content protocols by using a mass spectrometer to determine nitrate levels in a large number of fruit and vegetable specimens. Testing a range of specimens under laboratory conditions allowed us to establish normative levels for various fruit and vegetable species. A high degree of accuracy The results were applied to test algorithms which have been coded into the Greentest device. The device has been extensively back-checked against specimens that were subsequently tested with a mass spectrometer. The device is certified to be more than 90% accurate according to third-party testing. This is more than sufficient to produce a valid assessment of nitrate content.
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