Smart Shield Systems
PowerG 2-Way Wireless Magnetic Contact
The PowerG PGx945 series is a professional wireless door/window contact with a built-in reed switch and a programmable hard-wired auxiliary input—perfect when a magnet isn’t practical or you want to bring an existing wired contact into your wireless system. It communicates using PowerG (AES-128, frequency-hopping), includes case & back (wall) tamper, and provides on-device link-quality LEDs to speed up installs. Typical battery life is up to 8 years.
Why Choose This with Smart Shield Systems
- Flexible installs: we’ll use the aux input (NO/NC/EOL) when a magnet gap won’t meet spec or to convert a wired contact—cleanly enrolled and labeled.
- Signal verified on the spot: we use the device’s Placement Test and LED strength indicator to ensure GOOD/STRONG PowerG signal before we leave.
- Code-aware mounting: we set the back tamper, use screws where required, and align the magnet within the 6 mm (0.24″) gap limit for reliable detection.
Key Features
- Reed switch + hard-wired input (program as NO / NC / Single EOL 47 kΩ). The reed and aux input behave as separate transmitters for clean zoneing.
- PowerG wireless with AES-128, frequency-hopping, adaptive power, and supervision (4-minute heartbeat).
- On-device link-quality LEDs and enroll button for quick commissioning.
- Case & back tamper, low-battery reporting.
- Long battery life (typical 8 years, CR123A).
- Color options: PG9945 (white), PG9945BR (brown).
Product Specifications (At-a-Glance)
- Models / Bands: PG9945 (FCC/IC/UL/ULC 912–919 MHz), PG8945 (868 MHz), PG4945 (433 MHz).
- Magnet gap: ≤ 6 mm (0.24″) at the marked reed-switch side.
- Battery: 3 V CR123A lithium; up to 8 years typical.
- Supervision: status signaling every ~4 minutes; automatic low-battery transmission.
- Dimensions / Weight: 81 × 34 × 25 mm (3-3/16″ × 1-1/4″ × 1″); ~53 g.
- Aux input: NO / NC / EOL (47 kΩ); max cable length 10 m (22 AWG).
- Tamper: case & back tamper (back tamper mandatory for UL/ULC fire/commercial burglary).
Compatibility Notes
- Works with PowerG-capable panels (e.g., Qolsys IQ Panel 4 / IQ Pro, DSC PowerSeries Neo, etc.).
- Aux input can be enrolled as a separate zone for clean system logic.
- For UL/ULC Residential Fire applications, the aux input may be used with listed mechanical heat detectors mounted within 3 ft, with specific programming (zone type, supervision, EOL). We handle these settings when required.
Popular Use Cases
- Standard doors & windows: low-profile perimeter protection with verified signal strength.
- Hard spots / metal frames: use the aux input to land a wired recessed contact while keeping wireless on the panel side.
- Heat-detector tie-in (UL/ULC scenarios): approved wiring/programming for Residential Fire where appropriate.
Frequently Asked Questions
6 mm (0.24″) at the marked side of the transmitter. We align the magnet mark to the case mark during install.
Yes—the aux input supports NO, NC, or Single-EOL (47 kΩ) and can be enrolled as its own zone.
Real-world life is up to ~8 years on a CR123A with typical use; the sensor reports low-battery automatically.
Yes. The base has a break-away wall segment for back tamper, which is required in certain UL/ULC installs.
We use the device’s Placement Test mode—the LED blinks to show POOR/GOOD/STRONG so we can reposition if needed. (For UL/ULC, STRONG is required.)
PG9945 (North America, 915 MHz class),
Additional Resources
Download ManualReady for flexible, reliable perimeter protection?
Smart Shield Systems will mount, align, and enroll your PGx945 contact, configure the aux input if needed, test tamper and supervision, and document everything—so your doors and windows report perfectly from day one.