Smart Shield Systems
Series Wireless Smoke and Heat Detector
The DSC PowerG PGx936 series combines a photoelectric smoke sensor with a fixed-temperature (135 °F / 58 °C) + rate-of-rise heat detector and a loud built-in 85 dB sounder—delivering fast, reliable fire warning to your security panel and locally at the device. PowerG’s encrypted, two-way wireless adds long range and robust supervision, and the unit includes clear LED status and a Test/Silence button for quick checks and nuisance-alarm hush.

Why Choose This with Smart Shield Systems
- Code-aware placement: we install detectors outside sleeping areas and on every level, following NFPA 72/UL guidance for spacing and environmental limits.
- Clean integration: we enroll the device to your PowerG panel, verify supervision (≈128-sec heartbeat), and document alarm/restore, tamper, and trouble reporting.
- Fewer false alarms: we avoid high-humidity/drafty spots and use the Silence (hush) feature correctly—about 7 minutes for smoke alarms; 12 hours for low-battery chirps.
Key Features
- Photoelectric smoke + fixed 135 °F (58 °C) & rate-of-rise heat detection in one device.
- Built-in 85 dB sounder with ANSI Temporal-3 pattern and bright alarm LED.
- Two-way PowerG wireless with encrypted communications and automatic supervision.
- Test/Silence button: quick functional test; smoke hush ≈7 min, low-battery hush 12 hr.
- Visible link-quality indicator for faster, confidence-checked placement.
- Long transmission range for many repeater-free installs; typical 3-year battery life.
Product Specifications (At-a-Glance)
- Models / Bands: PG9936 (NA 915 MHz), PG8936 (EU 868 MHz), PG4936 (433 MHz).
- Detection: Photoelectric smoke; fixed 135 °F (58 °C) + rate-of-rise heat.
- Sounder: ≥85 dB at alarm (Temporal-3).
- Supervision: heartbeat about every 128 s; reports alarm/restore, tamper, low-battery, trouble.
- Battery / Life: 3× AAA (Duracell Procell PC2400 or Energizer E92); ~3 years typical.
- Environmental (PG9936): 40–100 °F (4.4–37.8 °C); 15–90% RH, non-condensing.
- Dimensions / Weight: Ø 125 mm (5″) × H 63 mm (2.5″); ~243 g (8.75 oz).
- Listings: UL 268 / ULC-S531 (PG9936); EU versions comply with EN14604.
Compatibility Notes
- Works with PowerG-capable DSC panels (e.g., PowerSeries Neo, iotega) and other compatible receivers; also widely used with Qolsys IQ panels that support PowerG.
- On alarm, the detector sounds locally and signals the control panel, which can trigger other sirens/alerts per programming (this is not a hardwired interconnect).
Popular Use Cases
- Hallways outside bedrooms & each level of the home (primary life-safety coverage)
- Basements, utility areas, living spaces—with heat backup for fast-rising temperature events
Frequently Asked Questions
Place detectors outside each sleeping area and on every level, avoiding areas with drafts, high humidity, or extreme temperatures. Follow NFPA 72/UL and the manual’s diagrams for spacing. We handle this for you.
Press and hold Test/Silence to sound the unit and signal the panel; for a nuisance alarm, press to silence for ~7 minutes. Low-battery chirps can be hushed for 12 hours.
It uses three AAA batteries (specified brands) with ~3-year typical life; the detector reports low battery to the panel and chirps locally.
Alarm/restore (smoke or heat), tamper/restore, low battery, and trouble/maintenance; the device also sends a supervisory signal about every 128 seconds.
In addition to smoke sensing, the unit includes fixed-temperature 135 °F (58 °C) and rate-of-rise heat detection for quicker response in fast-heating fires.
Additional Resources
Download ManualReady for monitored, code-compliant fire protection?
Smart Shield Systems will place, enroll, and test your PG9936/PG8936/PG4936 detectors, set up professional monitoring and mobile alerts, and schedule maintenance reminders—so your home gets fast, reliable warnings when it matters most.