Napco PGB — wireless glassbreak transmitter for the Napco Prima system.
One acoustic glassbreak can cover a whole glazed room, which is why it is reached for instead of fitting a contact or shock sensor to every sash in a bay window or storefront. Because the PGB is omnidirectional it does not have to be aimed, and it mounts with adhesive tape, so a room can be covered without drilling a finished ceiling.
- 433 MHz omnidirectional acoustic sensor, listed by Napco in the Prima accessory range.
- Long range up to 656 ft open air.
- 1-way encryption; tamper supervised.
- Slim profile, 2.55 in. × 0.65 in.
- Supplied with a CR2477 3 V lithium battery, self-stick tape and optional mounting screws.
- Security equipment, not fire: Napco publishes no fire listing for the PGB. In the same Prima range the smoke and CO devices, PSMK and PSMKCO, are the ones that carry UL 268 and UL 2075 certifications.
Do not order this as a replacement for a Napco Gemini glassbreak such as the GEM-GB or GEMC-WL-GB: those are a separate 319.5 MHz range. Within Prima itself, PWD is the window/door transmitter and PPIR the motion sensor — different zone devices entirely.