Techko S184 Portable Door Knob Guard with Vibration Sensor

List Price: $19.99 Discount Price: $13.99

Features:

• Built-in 115 db alarm
• Standard 9-volt battery operation (not included)
• Requires no special installation
• Low battery LED indicator
• Vibration or panic button activation

Customer Reviews:

Can't disarm without LOUD EAR-PERCING CHILD AWAKENING noise [Posted on 2008-06-11]
It works, but it is sensitive. Half the time you can't turn it off without waking up the neighborhood. I tried to cautiously hold down the unit when turning it off. It is possible to quietly disarm, but it is hard. Imagine one of those movies where the guy is trying to disarm a bomb without blowing himself up and everyone around him. THAT is the kind of sensitivity it takes to turn the thing off. Purchase only if you have patience, don't have kids, and you are halfway deaf.

Cheaply made, sometimes works [Posted on 2008-07-03]
I had to throw this away after trying it. It looks good in the photo but it is flimsy and unreliable. Sometimes it would work when moved; other times you could slam the door and even shake the alarm and it would still be silent. So if it can't be counted on to work every time someone opens the door, it can't be counted on at all, right? Don't waste your money on this one.

If They're up to No Good This Thing Will Stop Them! [Posted on 2008-07-05]
I got this because my former supervisor at my old job just cant get enough & she tries to come & pick/bump our locks. After moving 900 miles across the country, 3 months after we moved into our apartment we started noticing our deadbolt unlocked. We wanted to see if we were simply forgetting to lock it or was someone up to something. Sure enough at 4 am the day after we installed this it started going off. I estimate the sound to be at least 120 decibels; in the next room! It was soo loud we had to cover the speaker with some tape to keep from waking up all 12 units in our building! So far the lock picker has stayed away recently. Great for seniors who may be hard of hearing!

Great but not "Perfect" [Posted on 2008-07-05]
i bought a couple of differnt types to experiment, and this 1 is the loudest most ear piercing 1 of the bunch...i hang it on my sliding glass door arm brace, and there is NO way someone is getting in without making alot of racket...the only thing that keep its from being perfect is that the knob hook is a hard plastic, and you can't use it with door knob braces, you have to use an alrm that hangs with a chain or soft cord

unusable! [Posted on 2008-07-10]
Very disappointing - this door alarm is waaaaay too sensitive. It will go off for no apparent reason, and there is no way to adjust the sensitivity. It is very loud but there's no way you could turn it on and then go to sleep or leave the house. It would go off and wake you up or go off and disturb the neighbors. Please don't spend your money on this product! I gave it one star because that was the lowest rating I could give - it really deserves zero stars.

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