Frequently asked questions about the Movement detectors and timers category
What are movement detectors and timers and what are they used for?
Movement detectors and timers — these devices automate lighting and appliances: motion sensors (e.g. GRÄSSLIN 180° IP54, SEDNA DISAIN 160° 10A) switch lights on when motion is detected, while timers (mechanical 24H, mechanical 3500W/16A, digital 1800W/8A) schedule operation to save energy and add convenience.
Which sensor should I choose for outdoor use and why is the IP rating important?
Choose sensors with IP54 or higher for outdoor use, such as GRÄSSLIN 180° IP54 or HÄMARAANDUR GRÄSSLIN IP54. An IP54 rating protects against dust and water splashes, ensuring reliable performance and longer life outdoors.
What is the difference between mechanical and digital timers in the range?
Mechanical timers (e.g. 24H, mechanical 3500W/16A) are simple to use and handle higher loads; digital timers (1800W/8A) provide finer programming and more modes but are rated for lower load capacity.
What are the detection angles and range of SEDNA DISAIN 160° 10A and GRÄSSLIN 180°?
SEDNA DISAIN has a 160° detection angle and is rated 10A, suitable for corridors and entrances; GRÄSSLIN provides a 180° angle (GRÄSSLIN 180° IP54) for a wider coverage area. Range varies by exact model.
Can a motion sensor be mounted in the ceiling and which models are recessed?
Yes — recessed ceiling models include 'MOTION SENSOR 360º MIKROLAINE, SISSEEHITATAV', a 360° microwave sensor designed for flush/recessed ceiling installation.
What loads do the BRENNENSTUHL COUNTDOWN timer and the mechanical 3500W/16A timer handle?
BRENNENSTUHL COUNTDOWN (IP20) is for smaller loads and countdowns from 15 minutes to 9 hours; the mechanical programmable timer 3500W/16A supports up to 3500 W and 16 A for heavier appliances.
Do sensors allow adjustment of light-on time and sensitivity?
Yes — many models such as SEDNA DISAIN 160° 10A and GRÄSSLIN include adjustments for light-on duration and sensitivity, letting you set the switch-off delay and detection threshold.
Which timers are suitable for outdoor lighting — IP44 or IP20?
Choose timers with at least IP44 for outdoor lighting, for example the mechanical 3500W/16A IP44 timer; IP20 (like BRENNENSTUHL COUNTDOWN) is suitable only for indoor dry locations.
Can a 360º microwave sensor be used in rooms with glass partitions?
360º microwave sensors (MOTION SENSOR 360º MIKROLAINE) can penetrate thin walls and glass partitions, potentially causing false triggers; it's better to position the sensor with direct line-of-sight to the monitored area.
Which models are suitable for corridors and stairwells with frequent short passages?
Choose wide-angle sensors with adjustable sensitivity such as SEDNA DISAIN 160° 10A or GRÄSSLIN 180° IP44/IP54 — they respond quickly to motion and allow short light-on times to suit brief passages.