Generator Remote Monitoring: What the Apps Actually Do

What remote monitoring actually means for a standby generator

Most major standby generator brands now offer a cellular or WiFi module that connects the generator to a smartphone app. When your generator starts, runs, or develops a fault, the app notifies you, regardless of whether you are home. If you travel frequently, own a second property, or simply want confirmation that your generator completed its weekly exercise cycle, remote monitoring is the feature that makes that possible without a service call.

The core functions are similar across brands: real-time status, alert notifications when something needs attention, exercise cycle history, and in some cases remote start or reset capability. The differences are in how the hardware connects, whether there is a subscription fee, and how much diagnostic detail the app exposes.

Generac Mobile Link

Generac's Mobile Link is the most widely available remote monitoring system for residential standby generators. It uses a cellular module (sold separately from the generator, typically $100 to $200 installed) that communicates with Generac's cloud platform over an LTE connection. No home WiFi required.

What Mobile Link monitors and reports:

• Generator status (ready to run, running, alert, shutdown)
• Active fault codes when the generator detects a problem
• Weekly exercise cycle results (passed, ran, alerts during the run)
• Oil pressure and coolant temperature on larger liquid-cooled units
• Battery voltage (important because battery failure is one of the most common reasons a generator does not start)
• Total runtime hours since installation

Alerts arrive as push notifications or email. The app also stores a maintenance log so you can track when service was last performed. Generac offers Mobile Link on most of its residential generators (7 kW through 26 kW air-cooled and Guardian liquid-cooled lines); it is not standard on all models, so confirm it is included or available as an add-on when reviewing a quote.

There is a monthly or annual subscription fee for the cellular data service. As of 2026, Generac charges approximately $8 to $10 per month or $80 to $100 per year for the cellular plan. WiFi-based connection to an existing home router is available as an alternative that avoids the cellular subscription; the app functionality is the same, but the generator requires internet access from your router to communicate.

Kohler OnCue

Kohler's OnCue system provides comparable functionality to Mobile Link and is available on Kohler's residential generator line. Like Mobile Link, it requires a communications module that may or may not be included with the generator depending on the model and installer package.

OnCue reports generator status, active alert codes, exercise cycle history, and service reminders. It also surfaces hours until the next scheduled maintenance interval, which is useful for owners who want to coordinate service calls proactively. Kohler's app allows remote commands on supported models, including the ability to reset certain non-critical alerts without a service visit.

Kohler offers both WiFi and cellular connectivity options depending on the module purchased. The OnCue experience is closely tied to Kohler's dealer service network; some alerts trigger automatic outreach from your installing dealer if the generator is enrolled in a service plan.

Briggs and Stratton and other brands

Briggs and Stratton offered a similar monitoring system for its Fortress and PowerProtect generator lines under the "BRIGGS and STRATTON Home Standby App" branding. As of 2025, Briggs and Stratton's generator product line had gone through significant changes following the company's restructuring; availability of app-connected models under dealers varies by region. If you are getting quotes on a Briggs and Stratton unit, ask your installer explicitly whether remote monitoring is available for the specific model they are quoting.

Champion, Cummins (Onan residential), and Honeywell (which uses Generac hardware) have varying levels of app connectivity; confirm with your installer for the specific product.

What to ask your installer before you buy

Remote monitoring should be a topic in your pre-purchase conversation, not an afterthought after the unit is installed. Useful questions to ask:

• Is the monitoring module included in this quote, or is it a separate add-on? What does it add to the total cost?
• Does this generator use WiFi or cellular for connectivity? If cellular, what is the ongoing subscription cost?
• Can I see the app before I commit? A demo of the installer's own account is a reasonable ask.
• If the generator triggers an alert at 2 a.m., does the app notify me, or do I have to check it manually?
• If I enroll in your service plan, does that give you visibility into my generator's status so you can proactively schedule maintenance?
• What fault codes will cause an automatic service call from your team versus just an app notification to me?

Does remote monitoring matter for a typical homeowner?

If your generator is at your primary residence and you are generally home during major outages, remote monitoring is a convenience, not a necessity. The generator will run whether or not the app is connected.

Remote monitoring becomes meaningfully more valuable in three scenarios: (1) you travel or are away from home regularly during storm season, (2) you have a second home or vacation property with a generator, and (3) you have a household member who depends on the generator for medical equipment and you need real-time confirmation that it is running correctly. In any of these cases, knowing within seconds that the generator started (or did not start) during an outage is worth the module cost and subscription fee.

The weekly exercise cycle is the other practical use: most generators self-test for 10 minutes once a week, and without monitoring you only know it ran if you happened to be home and hear it. With monitoring, the app confirms the exercise completed without faults. Missing a failed exercise cycle for several weeks is how a battery or oil problem goes unnoticed until the next real outage, when the generator fails to start.

See the maintenance checklist guide for what to schedule beyond what the monitoring app can detect, and the installation checklist for the full list of questions to ask before signing an installation quote. Ready to get quotes from verified local installers? Find license-checked installers near you.