Question 2
Colour change from blue to yellow is positive indication of active dry rot.

Question 3
There is no deterioration in product over the periods stored so far (about 3 years) so a long shelf life is expected. It's a good idea to store away from direct sunlight (ie in the box).

Question 4
Weather. Sunlight will bleach the sensors over a long period. Rainwater will eventually dilute the bio-active reagent. They can be inserted from the outside of a building. I would recommend that in such a situation they are fully inserted to protect against weather.

Question 5
No minimum depth but it is a good idea to push right up to the cap as this helps seal the hole. Its not essential but it helps speed up the equilibrium time.

Question 6
Fit doesn't have to be tight, but sensor must be in contact with substrate (masonry, wood or plaster) at at least one point.

Question 7
Time to equilibrate is 4 days to 14 days (usually leave for 14 days due to inherent variability in vigour of various isolates of dry rot).

Question 8
Will only react to dry rot not wet rot.