ASD

Siemens FDA221, S54333-F15-A1

  Siemens FDA221, S54333-F15-A1 The FDA221 series of detectors are a very early warning dual wavelength (blue and infrared) smoke detectors designed to protect small business-critical environments up to 500 m². The detector works by...

Siemens FDA241, S54333-F17-A1

  Siemens FDA241, S54333-F17-A1 The FDA241 series of detectors are a very early warning dual wavelength (blue and infrared) smoke detectors designed to protect small business-critical environments up to 800 m². The detector works by continually...