Average Reviews:
(More customer reviews)The PIR sensor works very well.It scans every five seconds reacts very quickly.I ordered extra sensors to compliment the Air Alarm kit I ordered.The adjustability of the mounting makes it easy to aim once a mounting location is chosen.
Of the three sensors, there is one that appears to have one undesirable trait.I'm unsure if it is unique to that sensor or if it is because it is in a high traffic location or bad luck with 9V batteries.The PIR scans every five seconds according the manual and when it detects movement, it glows red.The sensor in question has used three 9V batteries since it was mounted.The original battery did not last very long and I assumed it was because it was a no name battery included with the unit.The second lasted 3 months and it did not glow "white" when the battery is low according to the manual.The red LED simply would was not as bright as normal (it was a 9V that I had, but tested "good" with the battery tester before installed- so it could have been just bad luck with two batteries).It is on it's third battery in six months.That is the only issue that has come up since the installation and so far just with one of the three PIR sensors.The Air Alarm and sensors are not even one year old yet, but the PIR does work as stated.
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Product Description:
SM-80 is an add-on wireless PIR motion sensor for SecurityMan Air-Alarm system. Its wireless transmitting distance is up to 450ft (in open area). It includes a 9V alkaline battery which could last up to 2 years. Motion detection range is 100° 10x10m.
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