The first loop (primary loop) is supervised and typically used for high-priority alarm reporting such as high security fire or burglary (reporting transmission every four seconds)
The second loop is the built-in, normally closed reed switch used in conjunction with magnet
Hi-Gain Dipole / Flat Paddle Antenna for 698-2700 MHz 3G/4G/LTE Cellular for optimal signal strength
Includes CELL-EXT – SMA Female to U.FL Cable – 9 Inches
Optimized for use with Honeywell Home AlarmNet Security Alarm Systems GSMV, GSMV4G, iGSMV4G, VISTA-GSM, VISTA-GSM4G, iGSMHS, iGSMHS4G and Fire Alarm Systems IPGSM-4G and iGSMCFP4G
Sleek, Sturdy Housing: The sleek, sturdy housing blends with any residential or light commercial interior and is constructed of ABS plastic for superior shock and impact protection. It contains a convenient wiring channel, knockouts for mounting and wiring, and easy access to terminals. Mounting screws are located in the rear cover— enabling easier installation.
Sealed Optics and Electronics: The optics and electronics are assembled into the front enclosure and sealed with a protective cover to prevent damage during installation. The sealed optical chamber also prevents drafts and insects from affecting the detector.