Camera recorder (homes) — checked and reset per service (per recorder)
Added to an annual package (ready, custom or institution); not sold on its own.
Checking and resetting the camera recorder.
Unit: per recorder. The price is per service; quantity = number of recorders × times a year.
Carried out during your annual subscription visits; the engineer confirms the numbers at the first visit: any excess is charged and any shortfall refunded. The price is fixed for the subscription year.