Air switch for scent machine via hvac system Min 0.3s/m wind speed

How to let scent machine work together with your hvac,

Solution:

1. Drill one hole in hvac duct

2. put metal probe into that hole,seal it

3. Set up time for scent machine 0:00-23:59 Mon..sunday.

Note: When it connect power,air switch will preapre 30s.then when have wind in your hvac system.,

              scent machine will work;