GridWatchdog plugs into any outlet and emails you about 20 seconds after the power drops — over its own cellular connection. It keeps working when your WiFi, router and internet are all dead.
$150 one time · 5 years of cellular service included · no monthly fee
They report over your WiFi. When the power goes out, so does your router — and the device goes silent exactly when you need it.
A summer outage while you're away can quietly cost hundreds of dollars in spoiled groceries.
No heat for two days means burst pipes. Finding out on arrival is the expensive way.
Medical equipment, heat, refrigerated medication. You want to know before they call.
Know your UPS started draining while there's still time to shut things down cleanly.
No app to install. No account to create. No hub, no wiring.
Any standard outlet near the thing you care about. The display lights up immediately.
Join its WiFi from your phone, type "Kitchen" and your email address, tap Activate.
It quietly checks in over cellular. You only hear from it when something actually happens.
The device runs on its own battery, so it reports the outage the moment it happens.
LTE-M, independent of your internet. Five years of data is included in the purchase price.
A rechargeable cell keeps it reporting through the outage, then lets you know quickly once power returns.
Brief flickers are filtered out. If your area is noisy, we can tune it remotely for you.
Built and tested by hand. Photos of the real thing.
Most competitors charge monthly, forever. That adds up.
| Product | Device | Per year | 5-year total | Needs WiFi? |
|---|---|---|---|---|
| GridWatchdog | $150 | $0 | $150 | No |
| MarCELL PRO | $199 | $180 | $1,099 | No |
| CabinPulse | ~$145 | ~$88 | ~$585 | No |
| iSocket Pro | $189 | ~$55 | ~$464 | No |
| WiFi smart plug | ~$30 | $0 | ~$30 | Yes — fails in an outage |
Competitor pricing from public listings and may change. GridWatchdog's $150 covers the full five years shown — after that, service renews for a modest one-time fee. A WiFi plug is listed for contrast: it stops reporting the moment your router loses power.
After 5 years, service can be extended for a modest one-time fee — we'll contact you well before then.
Not yet shipping. Join the list and you'll hear first.
There's a cellular modem inside, the same technology smart meters and trackers use. It connects to LTE-M networks directly, so it doesn't touch your router or internet at all.
Really. Five years of prepaid cellular service is built into the $150 purchase price. The device sends a few hundred bytes every half hour, so there's nothing metered and nothing to top up along the way.
Typically about 20 seconds from the outage to an email in your inbox. If cellular is congested the device retries several times, and our servers independently notice it stopped reporting within a few minutes.
It checks in frequently at first, then slows down to conserve power during a long outage. You'll get a second email quickly once power returns, with how long it was out.
No. Brief interruptions are filtered out automatically. If you're on a rural line with frequent blips, email support@gridwatchdog.com and we'll tune the filter for your device remotely — it takes effect immediately.
Yes. Each device is completely independent with its own cellular connection and its own name in the alerts. There's no hub, so one failing never affects the others.
The device keeps working — you just renew the cellular service. We'll email you well before the five years are up with a renewal option at a modest one-time cost. There's no auto-billing and no surprise: if you do nothing, we'll tell you before anything stops.
Only power status, battery level and signal strength — nothing else. It's stored on our servers so we can email you and help troubleshoot. We never sell it.
We're building the first production run now. Leave your email and we'll tell you when units are available.
One email when we launch. No newsletter, no sharing your address.