Banggood

good and working

2ND ORDER AS EXPECTED GREAT FOR ELECTRONIC PROJECTS

I bought these with the hopes of replacing the sound trigger on a bunch of Halloween animatronic pieces. after testing out with a simple transistor circuit these are going to work perfectly. seem to be good up to about 12 or more feet.

I wonder why they have not mounted the output transistor which would have made the interface to the outside world much easier. The sensor needs a subsequent delay relay as 8 seconds of on-time can only be used as a trigger. Works perfect up to 2-3 meters.

The shipment has arrived within the scheduled time. The product meets our requirements. Great!

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top très utile merci. top pour le prix !

Very compact pir senser

Work perfectly with Arduino !!!

for small robot projects these items make great motion detection, good reliable quality