The FS-Series flame sensors are designed to detect ultraviolet rays in flames. With a detection range of approximately 33' they either activate a built-in alarm sounder or are connected to a remote panel annunciating device.
FS-2000E
Now UL Listed! 33' detection range, Built-in sounder, 10V to 30VDC power, Adjustable angle of sensing element, Form "C" Relay, Tamper Circuit, Selectable detection times.