Power cut alarm UK: get notified when the power goes off at home or on site
PowerNotify is a compact power cut alarm that monitors mains power using a small USB device. If power fails, you can receive alerts by email (free), SMS or phone call — wherever you are.
UK-based support. 30-day returns. 12-month warranty.
Why people in the UK buy a power cut alarm
- To protect fridge/freezer food when out of the house
- To keep aquariums and reptile setups safe during outages
- To know when CCTV or broadband equipment goes offline
- To monitor rentals, holiday homes, sheds and garages
- To protect small business stock and comms cabinets
PowerNotify runs from any standard USB power source and connects to 2.4 GHz Wi-Fi.
What a “power cut alarm” usually means in the UK
In the UK, most people searching for a power cut alarm want a simple way to find out when power fails at a property — especially if they’re away, asleep, or managing something that can’t be left without power.
PowerNotify is designed for that exact job: it monitors whether the device is still receiving power and checking in. When it stops checking in for longer than your chosen delay, it sends alerts to your chosen recipients.
This is particularly helpful for UK homes where a short outage can be enough to thaw food, drop aquarium temperatures, or take security systems offline without you realising.
Recommended UK settings
- Alert delay: 60–180 seconds (reduces false alarms)
- Recipients: add at least 2 contacts for important setups
- Channels: email for records, SMS for fast attention, calls for urgent escalation
Internet issues can also cause the device to stop checking in. An alert delay helps filter brief drops.
Popular UK use cases
These are some of the most common setups customers protect with a power cut alarm in the UK.
Buying tip
If you’re mainly worried about missing alerts while you’re out, SMS is usually the simplest option. For critical setups, add a phone call alert as a backup.
FAQ: power cut alarms in the UK
Do I need Wi-Fi for a power cut alarm?
PowerNotify uses Wi-Fi and internet to report its heartbeat to the cloud. When the device stops checking in, the cloud sends your alerts.
Can I alert family members as well?
Yes. Add multiple email addresses and phone numbers so more than one person is notified.
Is email enough, or should I use SMS?
Email is great for records and multiple recipients. SMS is often noticed faster when you’re out. Many people enable both.
Will I get a notification when power returns?
Yes. When the device reconnects and resumes checking in, you receive a restore notification.
Set up in minutes
Plug in the device, connect it to Wi-Fi, claim it in the portal and add your recipients to start receiving power cut alerts.