During testing vapors are drawn across the sensors. Over time the residue from the vapors builds up on the sensors surface eventually coating them to where they do not analyze the sample properly.
The CannaDx sensor is currently designed test for the presence of the most important compounds of interest in cannabis flower, including Cannabinoids and Terpenes. Oils, hash, solvents, edibles, [...]
The MyDx unit is designed to accept multiple sensors. We currently include the CannaDx sensor when shipped but other sensors will be available in the future.
The current version of the CannaDx is does not test for pesticides. A future version is being designed to test those most commonly found in cannabis.
We expect the MyDx sensor to have a minimum shelf life of 6 months while performing 100 tests or more. Replacement sensors are available for purchase from our web site at www.mydxlife.com.