… and it's always at night.

Specifically it against the smoke detector. In Ireland, can be found in every home. Most are connected to the power supply, but each of them is still powered 9 V battery. And it is these batteries are made of this, I do not like these sensors.

When the battery is low in the sensor generates a single tone, whip. Frequency of changes depending on the battery. The weaker the more likely the sensor battery squeaks. The purpose is to warn you, that soon your sensor may stop working.

And everything would be if it were not pożądku, the batteries in the sensors always exhausted at night (most weekend) and the bearing 8 sensors in the home, night, hard to locate where there is a signal.

This is what I have time for about an hour on Saturday 4 in the morning. One sensor battery was running out of the house so that 15 minute signal is heard. I could not sleep, dog was terribly zdenerowany. We had to do something about it. Sequentially disconnect one sensor, thinking, that the sound coming from this unit właśniee. Then I went to bed happy, but, unfortunately, turned out to be, that erroneously located the source. So the whole operation had to be repeated once again… and another. And once I was sure, that is because the sensor unplugged all the sensors could lie down to sleep. Unfortunately, I was so wide awake, they do not want me to sleep and I waited a long day.

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