Flash Products

FTM 181 Airport Lighting Monitor

Current-Driven Lighting Monitor

Flash Technology’s FTS 430 and FTS 830 series of approach lighting products use the FTM 181 airport lighting monitor. The monitor communicates with current-driven airport approach lighting units and displays their flashing status.


The FTM 181 communicates with the lighting units, displays their flashing status and shows SSALR and ALSF-2 operation of the sequential lights. The FTM 181 provides a set of isolated relay contacts representing each light to be used for telemetry. The contacts open to indicate a failed light.


FTM 181 Airport Lighting Monitor Features

  • LED indicators for onsite at-a-glance status
  • Independent LED status indicator for each light
  • 15 individual dry contacts & 1 system dry contact
  • Option for normally open or normally closed data point
  • NEMA 4X stainless steel outdoor rated enclosure
  • Flash Technology meets the Buy American Act with all our airport lighting systems

Please fill out the form below or call 615.503.2000 with questions or to order this product.


19 x 18.8 x 6” (482.6 x 477.5 x 152.4 mm)


-50 to +55 degrees C


FTM 181 Datasheet


Current Manual

FTM 181 Manual Rev 3 (3.8MB)
Manuals for older product revisions can be found in the Knowledge Base.