Yes, its a basic testing device methinks
What the tCheck does is similar to the way one would check their cholesterol at home. The purpose is to give you an understanding of your cholesterol levels without the need for an in-depth breakdown that might take days. tCheck gives you a CBV number, or botanical Compound By Volume, which is the aggregate compounds in the infused solution. With the CBV reading you can determine the amount of un-infused and infused oil you need for any recipe. To help with the process, the calculator is a tool that helps determine exactly how much you need for a desired dose.
Much like ABV or alcohol by volume, CBV is a measure for total amount of botanical compounds dissolved in the oil or other liquid. CBV is expressed in terms of milligrams (mg) of per milliliter (ml) of liquid. So, if your CBV is 4 mg/ml, then a tablespoon, which is 14.8ml, has 59.2mg of total botanical compounds. The tCheck Web App on tCheck.me gives you a botanical compounds breakdown or type. It also can be used to adjust your recipes.
A lab test will provide myriad details such as ratios of each botanical compound, pesticides, terpenes, microbials, and other contaminants. tCheck provides a total infused CBV number. The results are analogous to your cholesterol test. The quick way is for your doctor to use just a tiny drop of blood from a pin prick. This quickly measures total cholesterol. The second, more accurate method, involves fasting overnight, taking a few test tubes of blood. This method may take several days but gives you a very detailed breakdown including HDL, LDL, triglycerides and more. tCheck is analogous to the first quick and easy method.
This still has use for those regularly making their own extractions and consumables....but it WONT measure a cannabinoid profile, just a Compound By Volume measurement.
Useful methinks for those who have already found the strain they seek, not as a device to seek such a strain.