A MIRACLE of RELIEF
I found this to be an excellent product with a loud piercing sound that you could not sleep through. Since I was the only other person in the house, this was ideal when I was either in my own bedroom on the other side of the wall, or downstairs and in another room, or even yet another level further downstairs, in other words this was audible from level 1 to level 3. This alert *is* going to wake up anyone else in the house, in my opinion, unless their door is closed, they are a very heavy sleeper, their bedroom is far away, and maybe even then. Other reviewers have discussed how it is possible to muffle the sound by wrapping it in a towel or something, so it can be muted, but that was the last thing I was interested in.<br /><br />The battery also lasts an extremely long time, something like a year or more of 24x7 use, and there is a highly visible blinking light to assure you the battery is still working (the light is small, and won't keep anyone awake).<br /><br />This was some of the best money I've ever spent, allowing me to actually sleep in my own bed with absolute confidence I would be awakened no matter how deeply I was sleeping, and as exhausted as I was, I had begun to sleep very deeply without wanting to.<br /><br />The instructions are very clear, just put the batteries in, adjust the mat under the sleeper, and hang the device on their doorknob or wherever - the cord beyween the mat and the alarm device was plenty long enough to be convenient. You can place the mat under the other person's shoulders, so that it goes off if their shoulders come off the mat (which is about a yard wide, so just rolling over on top of it will not trigger it), or you can place it under them lower down, around the middle of their ribs, so it is triggered only if they actually sit up. The device is sensitive and works immediately with no dangerous time lag, when pressure contact on the mat is removed. It does not go off if someone just rolls back and forth on it or shifts position. I experimented with the proper placement by lying on top of it myself, and adjusting its location to be under my ribs, so that it would go off when my shoulders got about 8&#34; off the bed, as I was in the process of sitting up. It worked perfectly EVERY TIME.<br /><br />I did not actually *use* the feature of the magnetic tether for detecting when someone sitting, gets up from a chair, but I did *test* it, and found it unobtrusive and lightweight to the sitting person, and extremely effective.<br /><br />I said out loud to myself and to others, repeatedly, that this was the best money I'd ever spent in my life. I no longer had to sleep on the floor by the bed so I'd be physically stepped on and awakened, or on the floor in the hallway just outside the open door in the hopes I would hear activity and wake up in time, and no longer did I have to attempt to stay awake all night at the foot of the bed, in an uncomfortable chair, in case something happened.<br /><br />This product was a miracle of relief to me, I have absolutely NO complaints about it, and only the HIGHEST praise.<br /><br />It's simple to use, it works brilliantly, there is a reassuring light visible from at least 60 feet away (probably farther) so you know it's on, the light lets you know when the battery finally *does* begin to get weak, but the sound is still very loud and the device still works strongly for WEEKS after the &#34;weak battery&#34; light alert comes on, so there is NO concern about being surprised by it suddenly stopping working. I have nothing but the highest praise - and my very deepest gratitude - for this product.
Rating: 5 stars