Smart Shield Systems
IQ Mini Extended
Get clean, reliable door/window protection—even in tricky spots. The IQ Mini Extended is an ultra-compact S-Line encrypted contact with a built-in reed switch and screw-terminal inputs for a nearby external (NC) contact. It’s ideal when the sensor must sit away from the actual opening (safes, cabinets, overhead doors) while still giving you standard open/close alerts and smart automations.
Why Choose This with Smart Shield Systems
- Pro placement & wiring for the cleanest install on doors, windows, safes, and garage doors
- Fast enrollment & testing so alerts and automations behave exactly how you expect
- Ongoing support for batteries, naming, chimes, and Alarm.com notifications
Key Features
- Encrypted S-Line radio (319.5 MHz) to your IQ Panel, with backward compatibility for legacy 319.5 systems.
- External terminals for a nearby normally-closed wired contact (keep lead length ≤20 ft).
- Rare-earth magnet and compact body make tight installations easy; gap up to ~3/4″ when aligned correctly.
- Smart rules & notifications (e.g., text if a door/window is left open; “turn on light when door opens”).
- Long life design: dual coin cells; marketing claims up to 8–10 years, with installer guidance to replace every ~5 years.
Product Specifications (At-a-Glance)
- Model / Part #: QS1137-840 (IQ Mini Extended-S)
- Dimensions: 2.5″ H × 1.0″ W × 0.5″ D; includes rare-earth magnet
- Radio / Range: 319.5 MHz; up to ~600 ft open air; supervisory check-in ~70 min
- Power: (2) CR2032 3 V lithium coin cells; replace with exact type about every 5 years
- Environment: -10 °C to 50 °C; 5–95% RH (non-condensing)
- Inputs / Codes: Primary reed (alarm/restore), External terminals (external alarm/restore), tamper/restore, low battery
- Install notes: Magnet gap ≤3/4″; external lead ≤20 ft; replace batteries with the exact listed type
Compatibility Notes
- Works with IQ Panels using 319.5 MHz; S-Line encryption on compatible IQ models, with legacy 319.5 panels supported unencrypted.
- Can be programmed as a standard Door/Window zone or a Safety Sensor for cabinets, chemicals, or safes, and used in Alarm.com automations.
Popular Use Cases
- Garage doors & gates (sensor on framing, wired contact at the door track)
- Medicine cabinets / gun safes where the sensor must sit out of sight
- Tricky window moulding that needs extra gap forgiveness (rare-earth magnet)
Frequently Asked Questions
Functionally similar, but the Extended version adds screw-terminal inputs for a nearby NC wired contact—handy when the wireless body can’t sit right at the opening.
Keep the external contact’s lead length at or under 20 ft, per the quick-install guide.
When aligned correctly, the guide specifies a maximum gap of about 3/4″ between sensor and magnet.
Two CR2032 coin cells. The product page cites up to 8–10 years of life, and the quick guide recommends replacing with the exact type about every 5 years; your panel will alert for low battery.
Yes—if your system supports 319.5 MHz sensors. It uses S-Line encryption with compatible IQ panels and is backward-compatible with many legacy 319.5 systems. We’ll confirm firmware during your quote.
Additional Resources
Download ManualReady for a Tidy, Flexible Contact Install?
Smart Shield Systems will design placement, wire the external contact (if needed), enroll your IQ Mini Extended (QS1137-840), and set up the right notifications and rules—so you always know what’s open, closed, or left ajar.