RE:A THC breathalyzer is not an easy thingThank you Geodcan!
I do understand what you'e saying (mentioned) about BLO however, I too have been formally in industry engineering R & D, testing for certification(s) and accreditations.
The various authorities have had multiple oppertunities to test, albiet as single THC only detection. Now with the dual THC detection and alcohol breathalizer, which the later has been proven in industry.
I just feel this is taking far too long (8-years plus) to get a single product combining the two detectors into market.