The PG9922 is a PowerG+ wireless glass break module. It is a sensor that detects when glass breaks and alerts the alarm panel. It has an upgraded form factor and has the upgraded PowerG+ technology. It's compatible with PowerG+ panels and can work in a fallback/legacy mode with PowerG panels. It works with your existing hardwired glass break detectors, letting you connect them to a PowerG+ wireless security system. This makes it easier to upgrade your alarm system without replacing all of your wired sensors.
The PG9922 is a PowerG+ wireless glass break module. It is a sensor that detects when glass breaks and alerts the alarm panel. It has an upgraded form factor and has the upgraded PowerG+ technology. It's compatible with PowerG+ panels and can work in a fallback/legacy mode with PowerG panels. It works with your existing hardwired glass break detectors, letting you connect them to a PowerG+ wireless security system. This makes it easier to upgrade your alarm system without replacing all of your wired sensors.