DSC Security Products WS4920HE SF 11/02 Siemens FDOOT441 utilizes ASAtechnology™ a

Siemens FDOOT441 utilizes ASAtechnology™ a distinctive forward / backward

They are intelligent analog addressable devices used for connecting

Enclosures shall be NEMA 4 listed by Underwriters Laboratories Inc

The LED is visible on the module or on a low‐profile faceplate

Led 2W Hf Speaker Strobe

DSC Security Products WS4920HE SF 11/02 Siemens FDOOT441 utilizes ASAtechnology™ aNew to the DSC family of wireless products, the WS4920 Wireless Repeater delivers an easy to install wireless device that significantly extends the range for DSC 1 way wireless devices from the control panel receiver and compensates for interference sources by improving the signal quality. The WS4920 repeats the 1 way wireless devices signal to ensure high quality signals are transmitted to the control panel receiver.