On Sep 25, 5:08*pm, wrote:
On Sep 24, 5:02*pm, Martin Gregorie
wrote:



On Wed, 23 Sep 2009 17:53:24 -0700, snead1 wrote:

Shat is a thermal detector?

Typically an DC amplifier watching a tiny, naked fast response thermistor
on a 5m (15ft) pole. The thermistor should be sensitive to air temp, so
it is fitted with a sunshade to keep direct or reflected sunlight off it.