Can Spiders activate a Dual-Tech

[steveo44]

Common knowledge that spiders can activate Pir detectors but what about Dual-Tech detectors?

 

[secureiam]

yes they can, but less likely than a qd or standard ir, but a spider close up, inside or over the lens probably would

 

[GalaxyGuy]

A tmd (twin movement detector) has two pir's combined, making it less likely for a spider to trigger. You can also fit two regular pir's in the same room and program for parallel activation to reduce false alarms - a hassle with wiring etc though.

My own dualtec in the sunroom was triggered by a moth a few years back - it was sitting directly on the lens, so changing both the heat and Doppler patterns of the room. Sirens going, I got my SelfMon message showing a single internal activation, so had high confidence that it was a false alarm.

 

[Mottie]

Get yourself some of this - I use it at work and at home on my detectors and cctv cameras.
https://www.lakeland.co.uk/25429/Spider-Ex-Aerosol-Spray-300ml

 

[steveo44]

A tmd (twin movement detector) has two pir's combined, making it less likely for a spider to trigger. You can also fit two regular pir's in the same room and program for parallel activation to reduce false alarms - a hassle with wiring etc though.

My own dualtec in the sunroom was triggered by a moth a few years back - it was sitting directly on the lens, so changing both the heat and Doppler patterns of the room. Sirens going, I got my SelfMon message showing a single internal activation, so had high confidence that it was a false alarm.

Nice plug. Great product though