I'm using a LCD TSA and just got a LED TSA. Have to return the LCD one. From what I can tell there are no settings for sensitivity on the LED. The manual doesn't even mention the LED model. So I'm hoping that it works A-Ok as I haven't had time to test it yet. I had assumed that you could adjust things on the LED model. Something like you do on a car alarm you know. But it appears..? that isn't the case.