How do you know if it's working?
237251
Lock it and it makes one beep, it's armed. Unlock it and lock it again and it makes two beeps, it's disarmed. When lock is armed, shake or move it and it goes off. Works perfectly.
466957
Read and follow the instructions on the container. It works, just be patient.
266089
No it doesn't. The only way you would know it's working is by plugging in your phone and see if it starts charging.
1087060
Not a clue. With the way the last 3 of their product worked for us, I wouldn't be surprised if it simply didn't work.
538563
I'm not sure how to tell but I think mine is the real thing. Let me know how to tell.
523410
It means that it's working, but if my experience is a guide it won't work for long.
778051
I would test the unit through the RCA input first to verify it is still functioning.
1763268
I don't know if it will work or not. It may be that it will; you can try it and if it doesn't work, send it back.
534361
There is a small sight window on the outside of the unit that permits you to see if the bulb is still working. It will glow with a light purple light when all is working.
812461
yes it works well. I have not had anyone tell me that they can even tell i am using them.
234630
How do you know it's not working by the way? Mine is 1.5 years in on a well and going strong.
1874021
Having bought one I can say I can't tell if it works or not. So no I would not.
1446151
Not sure... But I bought this and discovered there is No Light or Sound Indicating its on or even working..You will never know for sure whats happening or working or batteries are kaput. A bit disconcerting at best. :)
168594
It shows that the power is successfully connected. It goes out but never lets you know when fully charged. Sorry, I just let it go for a few hours.
212891
Check the battery first. Then check the instructions to see if you followed it correctly.
454109
I heard this to be true so I bought the product. I have not seen any result myself.
2068464
If it is a small problem it works well. If it is a bad problem it will take a while. Hope this helps you some.