Information about the DuoFern motion detector 9484 Y. Beenen Updated January 05, 2023 01:04 Follow We are happy to answer all your questions on general and technical topics in our FAQ section. Forwarding to the FAQ area Related articles Operating instructions DuoFern motion detector 9484 (indoor) Information about the RolloTube S-line DuoFern Information on the multiple wall switch (230V) 9494-2 Activate login mode: DuoFern motor actuator (potential-free) 9471-2 Activate login mode: DuoFern motion detector 9484