From: curd@notformail.com   
      
   On Mon, 20 May 2019 13:56:49 -0400, Phil Hobbs wrote:   
      
   > When it's cold outside, the PIR's temperature is higher than ambient   
   > because of thermal conduction from the house via the mounting.  A quick   
   > gust of wind will cool the sensor, which looks just the same as the   
   > ambient warming up.   
      
   The problem is trying to use PIRs outside - period.   
      
      
      
   --   
   This message may be freely reproduced without limit or charge only via   
   the Usenet protocol. Reproduction in whole or part through other   
   protocols, whether for profit or not, is conditional upon a charge of   
   GBP10.00 per reproduction. Publication in this manner via non-Usenet   
   protocols constitutes acceptance of this condition.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)