Pictures of my Whelen Freez-Alarm.
If I remember correctly, these were for neither aviation or automotive warning. These were for placing in your greenhouse, or other temperature sensitive area, and setting the "thermostat" for a certain temperature. If that temp was reached, the beacon would active to get your (or your neighbor's) attention.
I believe this was an ebay find. The seller shipped it to me in it's original box!
If I remember correctly, these were for neither aviation or automotive warning. These were for placing in your greenhouse, or other temperature sensitive area, and setting the "thermostat" for a certain temperature. If that temp was reached, the beacon would active to get your (or your neighbor's) attention.
I believe this was an ebay find. The seller shipped it to me in it's original box!