Smart Shield Systems
Supervised Wireless PowerG Outdoor Siren
The DSC PowerG Outdoor Siren is a 2-way, fully supervised sounder with a built-in strobe, designed for spots where running wire is impractical. It delivers ~110 dB at 1 m with distinct tones for burglary, fire, CO/gas, and flood, and includes entry/exit beeps and arm/disarm squawks you can enable from the panel. Its rugged, IP55 housing and long-life lithium batteries (typ. 7–8 years) are built for the outdoors.

Why Choose This with Smart Shield Systems
- Loud, code-aware installs: we place the siren for audibility, set event-specific tones, and program strobe timing per your preferences and local requirements.
- Signal verified on the spot: we use the siren’s link-quality LEDs and self-test before we mount it, aiming for GOOD/STRONG RF (UL/ULC: STRONG).
- Sealed and secure: we mount vertically for weatherproofing, engage double tamper (front + wall), and document battery service steps.
Key Features
- ~110 dB siren @ 1 m (≈85 dB @ 3 m) with built-in strobe (1-second pulse).
- Event-specific sounds: burglary (1.4–3.2 kHz sweep), fire, CO/gas, flood; optional entry/exit beeps and arm/disarm squawks.
- PowerG 2-way wireless (AES-128, FHSS, adaptive power) with supervision and low-battery reporting.
- IP55 weatherproof housing and visible link-quality indicator for optimal placement.
- Double tamper: front cover and wall (back) removal protection.
Product Specifications (At-a-Glance)
- Models / Bands: PG9911 (NA 915 MHz, UL/ULC listed), PG8911 (868 MHz), PG4911 (433 MHz).
- Sound output: ≥109 dB @ 1 m (piezo); ≈85 dB @ 3 m.
- Ingress rating: IP55.
- Operating temp: –33° to 70 °C (–27.4° to 158 °F).
- Power / Batteries: Four 3.6 V 3.5 Ah lithium cells (two packs, EVE/FANSO ER18505M) with ~8-year typical life.
- Dimensions / Weight: 295 × 186 × 63 mm (11.63″ × 7.31″ × 2.5″); ~970 g (34 oz) with batteries.
Compatibility Notes
- Compatible with PowerSeries Neo, PowerSeries Pro, and Qolsys IQ panels (PowerG). Qolsys lists PG9911B among supported peripherals.
- UL/ULC listing applies to PG9911 (915 MHz); follow vertical mounting guidance for weather sealing.
Popular Use Cases
- Fronts, side yards, and courtyards: loud, attention-grabbing alerts with a visible strobe
- Detached garages / shops: add an exterior sounder without running cable
Frequently Asked Questions
Specs call for ≥109–110 dB at 1 m (about 85 dB at 3 m) with a piercing sweep tone for burglary events.
The built-in strobe pulses about once per second during alarms for visual verification outdoors.
Yes—entry/exit beeps and arm/disarm squawks can be enabled from the panel. We’ll set what you want.
The enclosure is rated IP55 (dust-protected, water-jet resistant). Proper vertical mounting maintains the seal.
Two internal packs (each with two 3.6 V lithium cells) connect via a cable adapter; typical life is up to ~8 years. Your system reports low battery well in advance.
Yes—PowerG sirens, including PG9911, are supported by the Qolsys IQ Panel line.
Additional Resources
Download ManualWant a louder, more visible outdoor alert?
Smart Shield Systems will mount and enroll your PG9911/PG8911/PG4911, verify GOOD/STRONG RF, program tones and strobe timing, and test audibility—so neighbors notice and intruders don’t linger.