Price : $18.05
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Product Description
SM-80 is an add-on wireless PIR motion sensor for SecurityMan Air-Alarm technique. Its wireless transmitting distance is up to 450ft (in open area). It consists of a 9V alkaline battery which could last up to 2 years. Motion detection range is 100° 10x10m.
Customer Reviews
The PIR sensor functions incredibly well. It scans each and every 5 seconds reacts particularly rapidly. I ordered extra sensors to compliment the Air Alarm kit I ordered. The adjustability of the mounting tends to make it quick to aim once a mounting place is chosen.
Of the 3 sensors, there is a single that appears to have one particular undesirable trait. I am unsure if it is special to that sensor or if it is mainly because it is in a high site visitors place or negative luck with 9V batteries. The PIR scans every single 5 seconds according the manual and when it detects motion, it glows red. The sensor in question has utilised three 9V batteries considering the fact that it was mounted. The original battery did not last really extended and I assumed it was given that 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 merely would was not as vibrant as normal (it was a 9V that I had, but tested "fantastic" with the battery tester ahead of installed- so it could have been just negative luck with two batteries). It is on it is third battery in six months. That is the only issue that has come up since the installation and so far just with 1 of the three PIR sensors. The Air Alarm and sensors are not even one particular year old but, but the PIR does function as stated.
When these perform, they are wonderful. I presently have five installed, and generally speaking, they function correctly. In spite of this, of the eight total that I have ordered, I have had challenges with 3: 1 wouldn't turn on at all, 1 looked like it was turned on but wouldn't detect motion, and the third one particular detects motion inconsistently. I am returning the two that do not function at all (through Amazon) I'll update the evaluation if there are any complications with the return.
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