Smart Shield Systems
IQ Recessed DW-S
Make your door protection virtually invisible. The IQ Recessed DW-S installs inside the door (or frame) and reports open/close activity to your IQ Panel using S-Line encrypted 319.5 MHz signals. A powerful earth magnet and long wireless range deliver reliable performance without changing your décor.

Why Choose This with Smart Shield Systems
- Discreet security—sensor hides in the door or jamb for a clean look.
- Secure S-Line encryption with support for legacy 319.5 MHz systems.
- Pro installation—we drill, mount, enroll, label, and test every zone for you.
- Local support from Smart Shield Systems before and after installation.
Key Features
- Recessed, nearly invisible install in the core of the door; option to mount in the frame when needed.
- S-Line encrypted 319.5 MHz radio; backward compatible with legacy 319.5 MHz receivers.
- Long range: up to 600 ft (open air) to the panel; supervisory check-in ~70 minutes.
- Health & security reporting: alarm/restore, tamper/restore, and low battery.
- Powerful earth magnet keeps alignment stable over time.
Product Specifications (At-a-Glance)
- Model / Part #: QS1134-840 (IQ Recessed DW-S)
- Dimensions (sensor): 2.25″ D × 0.75″ H (cylindrical body)
- Wireless / Range: 319.5 MHz S-Line, up to 600 ft open air; keep-alive ~70 min
- Battery: 1× 3 V CR2; replace with exact type ~every 5 years (panel supervises low battery)
- Operating environment: -10 °C to 50 °C, 5–95% RH (non-condensing); storage -40–80 °C
Compatibility Notes
- Works with IQ Panels that support 319.5 MHz; S-Line encryption is automatically recognized on compatible panels (e.g., IQ Panel 4 with S-Line support).
- Enrolls like a standard Door/Window zone and participates in scenes, chimes, and notifications.
Popular Use Cases
- Front and back entry doors for a seamless look
- French doors or patio doors where surface contacts would be visible
- Designer trim or historic doors where aesthetics matter
Frequently Asked Questions
You can mount the sensor at the top or on the side of the door; the magnet mirrors that placement. In some door types it’s better to place the sensor in the frame instead of the door—our tech will choose the best option.
About every 70 minutes (supervisory keep-alive), and it also reports tamper, alarm/restore, and low battery events.
Listed up to 600 feet (open air). Actual range depends on construction; we verify signal strength during installation.
One CR2 3 V lithium cell. Replace with the exact type approximately every 5 years; your panel/app will alert you for low battery.
Yes—if your panel supports 319.5 MHz sensors. S-Line encryption is used with compatible IQ panels and remains backward-compatible on legacy 319.5 MHz systems. We’ll confirm firmware during your quote.
Additional Resources
Download ManualReady for Invisible Door Protection?
Smart Shield Systems will drill and fit your IQ Recessed DW-S (QS1134-840), enroll it to your panel, and set up chimes and alerts—so you get discreet security that blends right in.