Operating instructions DuoFern motion detector 9484 (indoor) Y. Beenen Updated August 28, 2024 08:53 Follow Download PDF Related articles Operating instructions Window/door contact 9431 Operating Instructions Smoke Alarm 9481 Information about the RolloTube S-line DuoFern Operating instructions RolloTron Basis 1100 Operating Instructions DuoFern Sun Sensor 9478-1