[Spridgets] (no subject)

[Rick Fisk]

Larry,

They work by emitting a beam of infrared light and then sensing how much is 
reflected back.  A warm body reflects far more IR light than the air and the 
light turns on even if the air is close to skin temperature.

Rick

----- Original Message ----- 
From: "Larry Daniels" <ladaniels at sbcglobal.net>
To: "Rick Fisk" <refisk at chartermi.net>; <spridgets at autox.team.net>
Sent: Thursday, February 17, 2011 10:13 PM
Subject: Re: [Spridgets] (no subject)


> Rick, not trying to be a smartass here (I don't really need to try), but 
> if
> the motion detector is actually a temperature sensor, would it detect a 
> body
> when the ambient temperature is about 98.6 degrees?  Seems like it would
> fail as it neared that temp.
>
> LAD