Door sensor problems

[pal251]

I installed two of the nellysecurity door sensors on a nvr the other day for a friend. He is supposed to be getting emails when the door opens. Now he's saying he got a "1000" emails saying it's open. Worked fine for a day till today.

It's on a steel door but has magnetic tape holding it. Any ideas?

 

[ruppmeister]

Is there by chance a large gap between the sensor and the strip giving the sensor the impression that it is open? Can you move the two parts of the sensor closer together at all?

 

[pal251]

Pretty close together. I wonder if it matters which way magnet is facing, didn't see any directional indicators. I do t normally install these

 

[ruppmeister]

I don't imagine the direction of the magnet being the problem if it was working and now it isn't.

I would remove from the door and test in hand the function of open/closed. It might be the magnetic tape causing it to register as open constantly.

 

[pal251]

You mean the double sided sticky tape? I have another magnet I can fiddle with it with

 

[ruppmeister]

It's on a steel door but has magnetic tape holding it. Any ideas?

I thought you said you were using magnetic tape to hold the sensor to the metal door, no?