The Model FZ-12 has a thermostat with a 3 ft cord. Upon setting the thermostat
at the desired activation temperature, it can be placed up to three
(3) feet from the signal head via a wire cable, to monitor
the room temperature.
The Model FZ-12 is visible from only one side and is powered
by a (2) D-cell batteries and consists of a flashing signal
that can be seen from a much greater distance (up to 1/2