Qolsys QS5110-840 IQ Wireless Smoke & Heat Detector — 319.5 MHz

Qolsys QS5110-840 IQ Wireless Smoke and Heat Detector

The QS5110-840 is a compact, battery-powered wireless detector designed to work with compatible 319.5 MHz control panels. It blends a photoelectric smoke sensor with an integrated heat sensor to provide multi-layered alerts, helping you respond quickly when smoke or rapid heat rise occurs.

With Always On technology, this device stays vigilant 24/7, even if the main system is unarmed. Its small 5" x 2.5" footprint makes ceiling mounting straightforward, and the included screws and anchors simplify installation. The detector is UL 217 listed and carries FCC/IC approvals, underscoring its alignment with residential safety standards.

What it detects and how it helps

• Photoelectric smoke sensor detects visible particulates early, often before a heavy smoke plume forms, helping to reduce nuisance alerts.
• Integrated heat sensor monitors rapid heat increases (135°F rating) for an additional warning signal, especially in areas where smoke might be delayed or obscured.

Key specs and practical performance

• Power: 3 AAA batteries (included) with an estimated 3–5 year life, reducing frequent battery changes.
• Communication: 319.5 MHz transmitter with up to 600 ft wireless range to your control panel or receiver.
• Audible alert: 85 dBA sounder to grab attention in busy rooms or hallways.
• Environment: operates from 40°F to 100°F and 15–90% relative humidity, suitable for typical home conditions.
• Form factor: measures 5" x 2.5", designed for quick mounting using included hardware.
• Status indicators: tri-colored LED helps you identify device state at a glance.
• Compliance: UL 217 listed with FCC and IC approvals; tamper and tamper restore signaling supported.

Compatibility and setup you can rely on

• Requires connection to a compatible control panel/receiver operating on 319.5 MHz, such as GE/Interlogix NetworX or Simon panels, Leviton 64-Zone Receiver, Elk M1 Wireless Receiver, or Qolsys IQ Panels.
• Wireless installation with no field wiring; designed to protect up to a 70-foot area from the panel and within a 600-foot range in open spaces.
• Hush button lets you silence the sounder during an alarm, while the LED and tamper features keep you informed.

Why consider this detector

For homes already using 319.5 MHz systems, the QS5110-840 adds a robust, dual-sensor approach that can trigger alerts even when smoke hasn’t fully clouded the room. It supports notifications to the control panel and, with a subscription, text alerts via Alarm.com. Expect improved peace of mind from continuous monitoring and clear status signals, without requiring rewiring or complex installation.

Note: This device is designed to mesh with existing ecosystems and does not replace a full home fire alarm system. It provides added coverage and early warning where compatible panels are installed, backed by a 1-year warranty.