APsystems LTE USB Dongle
A cellular internet connection for your APsystems monitoring, for sites where Wi-Fi can't reach.
- Local delivery & installation in California
- Licensed electricians available
- Questions? Real answers from our team
- 14-day returns
Monitoring without Wi-Fi
A cellular connection for sites where Wi-Fi was never going to work. The LTE USB dongle gives your APsystems monitoring hardware its own independent path to the internet, over the mobile network, with no dependence on the building's router, password or uptime.
The problem it solves
Monitoring assumes an internet connection, and a surprising number of solar sites do not have a usable one. Detached garages and barns sit well outside router range. New-build sites have an array commissioned months before broadband is installed. Rental properties have a network the installer has no business asking for credentials to. Remote ground mounts, pump stations and agricultural buildings often have no fixed line at all.
Why it is not just a convenience
A monitoring gateway that cannot reach the internet is an expensive local logger. The warranty claim you file two years from now depends on production history that was actually uploaded. So does the service call where you prove a module has been underperforming since installation. Connectivity is not a nice-to-have on the data side — it is the thing that makes the data exist.
Also useful when
- The homeowner changes their Wi-Fi password and the system silently drops offline
- You are managing systems under an O&M contract and want a connection you control
- The array is commissioned before the property is occupied
- Site wireless is congested or unreliable enough to cause data gaps
Before you order
Check LTE coverage at the equipment location, not at the street — equipment rooms, basements and metal outbuildings attenuate signal significantly. Confirm data plan requirements and carrier compatibility for your region, as these are not universal. Verify compatibility with your specific ECU model before ordering.
Related products
- APsystems EZ1-LV Plug-In Solar Kit + APmeter — the complete zero-export plug-in system
- EZ1-LV Add-On Microinverter — expand an existing kit
- All cables & accessories
Local delivery & install
We deliver and install across our California service area.
Licensed electricians
Meter installs, dedicated circuits and breakers. Learn more
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Works well with
Helpful guides
We'll help you plan it
Tell us about your space and your power bill, and we'll recommend the right kit, panels and backup setup for your home.