Qolsys IQ Panel 4 Review: Keep It, Upgrade It or Buy IQ5?
The Qolsys IQ Panel 4 can still be a useful installed security system. For a new purchase, compare it with IQ Panel 5 and ask why the older model is being proposed. For an existing system, condition, communication reliability and the features you need are better reasons to upgrade than the model number alone.
Product status checked October 2026: Johnson Controls' May 11, 2026 North American notice discontinued the listed IQ Panel 4, IQ4 Hub and IQ4 NS part numbers and named IQ5-family replacements. The notice lists some units as out of stock and others available while quantities last. It does not announce that installed IQ4 systems lose monitoring or stop operating.
This review concerns the full IQ Panel 4 touchscreen model. IQ4 Hub and the screen-free IQ4 NS are separate products; the full panel's camera and radio configuration should not be assumed on those variants.
Which IQ Panel 4 features matter in everyday use?
The manufacturer product page describes a 7-inch touchscreen, LTE and Wi-Fi communications, PowerG support, Z-Wave 700-series automation and an 8MP panel camera. What matters is how those functions are configured around your home.
- Touchscreen: check system status and use clear zone names so an open window is easy to identify.
- Two communication paths: cellular and Wi-Fi can provide alternatives, but activation, signal quality and the working service connection still matter.
- PowerG sensors: supported two-way encrypted devices can be useful for an existing home where new cable is difficult to route.
- Automation: choose supported locks, lights and thermostats for particular tasks rather than assuming every Z-Wave device exposes every feature.
- Panel camera: consider disarm-image and privacy settings with everyone who uses the property.
The panel camera is not a whole-home recording system. Alarm.com's Peek-In documentation, for example, describes on-demand panel snapshots and requires the IQ Panel 4 to be connected to Wi-Fi. That is a different function from a driveway camera recording motion or a dedicated video system.
Will your existing sensors work with IQ Panel 4?
The answer depends on the exact receiver, sensor model and software. The IQ Panel 4 specification sheet identifies PowerG plus model-dependent legacy RF options. A unit with one legacy receiver does not receive all three legacy frequencies.
| Legacy RF option | Examples to investigate | What must still match |
|---|---|---|
| 319.5 MHz | Supported Qolsys S-Line and selected GE/Interlogix devices. | Exact sensor model, receiver and supported firmware. |
| 345 MHz | Selected Honeywell and 2GIG legacy devices. | Exact protocol/model and, where relevant, the device's supported loop. |
| 433 MHz | Selected legacy DSC wireless devices. | Exact model and regional version. |
The manufacturer's version-specific supported-sensor list demonstrates why model and software checks matter; that older list is not a current blanket approval for every device in those brands. Have the installer confirm the applicable compatibility documentation for your panel's firmware before ordering sensors.
A concrete purchasing trap: the manufacturer notice distinguishes IQP4001, a Verizon version with 319 MHz legacy RF, from IQP4003, a Verizon version with 345 MHz legacy RF. A matching cellular carrier does not make their legacy sensor receivers interchangeable.
Older one-way devices also do not become encrypted PowerG sensors when retained on an IQ4. If reuse is important, ask for a written inventory showing which devices can stay and which should be replaced.
Wired sensors require their own conversion plan
An all-in-one wireless control is a different architecture from a cabinet panel with wired zones. A supported wired-to-wireless interface may preserve suitable existing circuits, but it needs the correct power, supervision and device compatibility. Smoke and CO circuits require special attention; do not assume a burglary-zone converter accepts them.
See our existing-system takeover guide for the full assessment. For extensive wired equipment, comparing a hybrid design may be more useful than trying to convert every part to suit a touchscreen panel.
Accessories can depend on firmware
The IQ Keypad-PG quick guide gives a specific example: IQ4-family support requires version 4.4.0 or later and a PowerG-equipped panel. That requirement applies to that accessory; it is not a universal minimum for every keypad or sensor. Check accessory instructions before purchasing.
Where installation and outage planning matter
Choose an indoor, dry location within the operating limits
The IQ Panel 4 data sheet specifies indoor, dry use from 32°F to 120.2°F. An unheated Maine camp or detached outbuilding can fall outside that range in winter. Select the control location and any remote detectors around their individual environmental ratings.
For a seasonal home, a sensor near a vulnerable pipe can tell you something the temperature at the panel cannot. Ask about freeze and leak protection, including who can respond when you are away.
Battery backup supports the panel, not every connected service
The manufacturer rates the panel battery for more than 24 hours under its specified conditions. Treat that as a published rating, not a guarantee for an aged battery or every operating condition. Have backup condition assessed and plan for outages longer than the available battery runtime.
The panel battery does not keep the home's router, modem, cameras or heating system powered. Cellular alarm communication and internet-dependent video features are different paths. A winter outage plan should address those dependencies separately.
Radio range must be checked at the property
A sensor across an open room and one beyond masonry, metal equipment or an addition face different conditions. Ask for testing at the proposed locations, especially for a garage, basement or outbuilding. Do not turn an advertised open-air range into a promised working distance through your home.
Where IQ Panel 4 remains a sensible fit
For an owner with a stable installation, suitable sensors and the needed remote functions, keeping the system can be reasonable. A service visit can address an isolated battery, sensor or communication problem without assuming the whole panel needs replacement.
Its limitations are chiefly about the actual design: legacy radio choice, supported accessory functions, ongoing service costs and the dependencies of connected features. A touchscreen alone cannot compensate for missing detection coverage or an unreliable communication path.
IQ Panel 4 versus IQ Panel 5: when does an upgrade make sense?
IQ Panel 5 brings a newer computing platform, built-in PowerG+, modular legacy-radio options and newer automation hardware, according to the current manufacturer overview. Our IQ Panel 5 changes guide explains the hardware differences in detail.
Consider keeping IQ4 when
- The existing system tests correctly.
- The interface and enabled services meet your needs.
- Your provider can support the configuration.
- A targeted repair or compatible addition solves the problem.
Compare an upgrade when
- A required function is unavailable on the existing setup.
- Repair or replacement-part options are poor.
- You are redesigning substantial coverage.
- You are buying a new system and want the current generation quoted.
Do not assume the new panel uses the old power supply, mounting parts or every accessory unchanged. A proper quote should identify retained equipment and any required replacements. For broader brand choices, read our Qolsys platform assessment.
What should an IQ4 quote or upgrade proposal include?
Request the exact SKU, new or existing equipment condition, sensor inventory, installation work, communications, enabled app features and ongoing monitoring charges. For remaining stock, confirm the warranty and the provider's support arrangements. Do not infer a discount, long-term update promise or parts availability from the discontinuation notice.
The home security cost calculator can help organize an initial budget, but the final installed price depends on the equipment and work required. Reusing suitable devices may help; it should follow testing and compatibility review.
IQ Panel 4 owner questions
Does a discontinued part number mean my alarm stops working?
No such shutdown is stated in the cited product notice. Verify your current monitoring, firmware and service arrangements with the provider. Hardware availability and active service are different questions.
Does it need Wi-Fi for every alarm function?
The panel supports cellular as well as Wi-Fi communication. The enabled service, actual connection and particular function determine what works during an outage. Video or panel-camera features may have additional network requirements.
Can I use it without a monitoring subscription?
Local panel operation and connected services are separate. Do not assume that app access, cellular reporting or staffed alarm response are included without an activated service plan. Ask the provider to spell out the proposed arrangement.
Where can I get help with a current problem?
Use the correct IQ Panel user manual and contact your service provider with the displayed message. Existing Cunningham customers can request service. If an emergency alarm is sounding or danger is suspected, get to safety and call 911 as appropriate.
Make the decision around your existing system
Tell Cunningham whether you own an IQ4, have an older alarm or are comparing a new installation. Include your town, known model and the feature or problem driving the decision.
