PGST
Alarm · Camera · Sensor · Siren
ALARM SYSTEMS
CAMERAS
SENSORS & ACCESSORIES
SIRENS
By Thomas Rivière, Product Analyst — Last updated: 30 September 2026
The PGST indoor siren delivers a powerful audible alarm the moment the panel detects an intrusion, providing immediate deterrence for anyone inside the home.
PGST indoor siren: role in the alarm system
When any PGST sensor triggers the alarm panel, the indoor siren activates instantly with a high-volume sound alert. This immediately deters intruders and warns occupants or neighbours. Unlike the outdoor siren, it is designed for interior use — typically installed in a hallway or central area to maximise sound distribution throughout all rooms.
PGST indoor siren: installation
The siren communicates wirelessly with the PGST panel — no wiring between the two devices. Mount it on a wall or ceiling in a central location, ideally out of easy reach of an intruder. Perform a range test before finalising placement to confirm stable signal reception. The siren’s own power supply keeps it operational even during a mains power cut.
5 key takeaways about the PGST indoor siren
- Powerful sound deterrent: high-volume alarm activated instantly by the PGST panel.
- Wireless: no wiring required, easy installation anywhere indoors.
- Own power supply: operates independently, even during a mains power cut.
- Full PGST compatibility: works with PG103, PG106, PG107, and PG108 panels.
- Configurable duration: alarm duration set via panel configuration.
FAQ — PGST indoor siren
What is the difference between the PGST indoor and outdoor siren?
The indoor siren is for interior use only and is not weather-resistant. The outdoor siren is built to withstand rain and temperature extremes and is designed to be visible from the street for neighbourhood alerting.
Can I connect multiple sirens to one PGST panel?
Yes. Depending on your PGST panel model, you can associate multiple sirens to cover different areas of your home and maximise deterrence.
Does the PGST indoor siren work during a power cut?
Yes. The siren has its own backup power supply, keeping it operational even if the mains power is cut or tampered with.
Also in the PGST range
See also: PGST outdoor siren · PGST door sensor · PGST PG103 alarm panel
PGST Indoor Siren: Sound Power and Reliability During Intrusions
The PGST indoor siren produces a powerful alarm as soon as the PGST control panel detects an intrusion or receives an alert from one of its sensors. As a guide, indoor alarm sirens on the residential market typically emit between 90 and 110 dB: check the datasheet of the exact model for its sound level. The sound is loud enough to alert neighbours, wake sleeping occupants and strongly deter an intruder from continuing. The siren communicates wirelessly with the panel via 433 MHz — no cabling between the two devices is needed.
Installation is straightforward and flexible: it mounts on a wall or ceiling by screwing into place, ideally at height to keep it out of reach and maximise sound projection. Powered from the mains with an integrated backup battery, it continues operating even during a power cut — precisely when you need it most.
Frequently Asked Questions — PGST Indoor Siren
How long does the siren sound before stopping automatically?
The alarm duration is configurable from the PGST control panel: once the set time has elapsed the siren stops automatically, even if the alarm has not been manually disarmed. This behaviour prevents prolonged noise disturbance in the event of a false alarm or an inability to disarm quickly. The duration can be adjusted to suit your preferences and local regulations on noise levels at night.
Alarm duration is configurable from the panel and stops automatically once that time elapses, even without disarming — a deliberate design choice to avoid prolonged noise from a false alarm rather than a sign of a failing siren.