• power outage?

Don't let a power failure cause you a damage. Learn how to get prompt notifications about power failures via text message or call to your phone.

iSocket - power failure alarm

power outage alarm device

iSocket is an intelligent device that plugs into an electrical wall outlet and can alert you of a power failure. This gives you peace of mind or informs you of a problem. We have been helping with this for over 12 years.

Watch a short video about the power failure notification feature of the new Plug-and-Go iSocket

What features does your iSocket have

Power loss alarm is the main feature of this iSocket model. Another useful feature is that you can connect any home appliance to iSocket and start or stop it remotely from anywhere in the world. You can turn on a lamp remotely or reboot your router remotely, and so on. You can do these operations with any appliance that is fitted with a plug. There are other features included as standard or optional.

You can recycle power with iSocket

Remote switching

You can connect a home appliance and turn it on or off remotely.

iSocket suitable for remote reboot

Reboot when hung-up

Reboot your router or other IT equipment when it hangs up.

iSocket offers free test period

Free test period

You can explore iSocket within a month free of service charges. We know you will like it!

power outage alerts by SMS with iSocket
iSocket uses Progressive Web App

Progressive Web App

You can manage your iSocket via convenient interface either from phone or computer.

iSocket is a very safe device

Incredible security!

iSocket has multiple levels of security: your data protected.

iSocket made in Finland

Made in Finland

All iSocket products are designed and manufactured in Finland to strict quality standards and have national approvals.

How the power outage alert feature works

iSocket has a number of built-in features, however power failure notifications is the core feature of iSocket. Find out how easy it is to set up and run this system and prevent loss or damage to your property when the power goes out and you need to know about it.


We provide a simple one-page checkout where you can choose your applications and we will offer the best plan as well as the correct model and accessories for you. We offer fast delivery - usually around 3 business days.


Plug iSocket into a power outlet and wait for it to connect to the mobile network. It comes pre-configured based on your order! It is a Plug-and-Go solution. Just plug and go!


"Forewarned is forearmed". If you are informed of a power outage in good time you can take the corrective action promptly and avoid disaster.

Yes, it's that simple! We will create an account for you on the iSocket World IoT Portal and your iSocket will start working out of the box, without additional settings, without contracts, without the need for a new phone line or anything else that makes life difficult. Just plug and go! You can change setting, add new numbers for notifications and more anytime.

iSocket power outage alarm device for North America

A small cost for the peace of mind and comfort that iSocket gives you

Remember, the cost of the damage from a power interruption can be considerably more than the cost of a solution that will send you power outage notifications. And remember, power failure alerting is not the only feature iSocket offers you.

Where do people use iSocket?

iSocket is used to monitor power outages all over the world, by many people in different applications. Look through these applications and see how iSocket can help you. Remember, the cost of the damage from a power outage can be considerably more than the cost of a solution that will send notifications about power failures directly to your mobile phone.

  • People use iSocket all over the world in their homes and offices to monitor power cuts and start or stop equipment remotely.
    Power Cut Alarm for the UK
  • John, and other farmers like him, use iSocket to remotely control the power supply to cattle feeders.
    Power cut alerts to cell phone for farmers
  • Nicky and Anna will get an immediate alert if there is a power outage on shore and they need to check the boat.
    Shore power lost alarm by SMS to mobile
  • Customers use iSocket to monitor power of servers in data centres.
    Power cut monitoring in datacentres
  • The fishing industry use iSocket to monitor power supply to pumps and other equipment used in the fishing and seafood industries.
    Power outage monitor for fishing and seafood industry
  • Alberto – and a number of other greenhouse owners use iSocket to monitor power supply and to stop or start irrigation systems remotely.
    Power cut monitor in a greenhouse

If you could not find an application that suits your needs exactly, use it just for the peace of mind it offers you. We offer a 30 day money back guarantee - return the product if you are not completely satisfied.

What customers say

Few years ago, back to ~2015, we asked one of our loyal customers Rick McAndrew from Australia give us a feedback about iSocket. He has a boat and tells what happens when electricity cuts off and why it is important for him to get a power loss alert immediately. NOTE: this is a feedback on the previous generation of iSocket where you need to use a SIM card. New iSocket is Plug-and-Go - connectivity is integrated. It become frustration-free solution - it works out of the box. It will text you about power outage soon after you plug it in.

iSocket power outage alarm device for North America

Now is a good time to get your iSocket - special limited offer when you buy two

Buy two iSockets together with your friends and get a great discount. This is a small cost for the peace of mind and comfort that iSocket gives you.

The best for the US?

People are using iSocket all over the world to monitor power failures and for other applications. Why don't you? Check out what makes iSocket an outstanding choice for power outage monitoring in the US?

Certified for the US

Connects anywhere mobile coverage exists

Fast free shipping (2-5 days)

Free support from manufacturer

Who are we?

We are iSocket Systems, who invented this power outage monitoring technologies more than 10 years ago. Yes, we inveted this! We are a company with reputation.

10+ years experience

We have extensive experience in the development of electronics and software. We are more than 10 years on the market.

Authorised distribution

We are the manufacturer of the product and we know our product!

30 day money back guarantee

You can return a product if you are not fully satisfied.

PayPal Verified

Your payments to us are protected by the PayPal protection programme.


We protect our intellectual property worldwide. We invest for the future. We are here to stay!

Ordering steps

With a few simple steps you will become another delighted owner of iSocket.

Click Buy now.

We offer a quick delivery.

Just start using. We guarantee your satisfaction!


Nope! When power fails, the Wi-Fi will too. iSocket is a cellular solution!
You don't need your own SIM card or data plan. This new (since 2021) iSocket is a Plug-and-Go hassle-free solution with integrated connectivity that allows your iSocket to be connected to any available cellular network. We offer you a plan in proportion to the features you use. You will see your plan on checkout after you have selected your applications. Our prices are better than anything you would get from a local provider. More, you get not just a bare connection as it would be with your local provider, but also a convenient interface to work with iSocket and amazing support that we could not provide if we were selling you just hardware. On the top of that you have 30 days free test period and 30 days money back warranty.
The whole idea of this new (since 2021) iSocket is that it is a hassle-free solution where end users do not have to think about SIM cards, networks and so on. The first 10 years (since 2010) that we only sold hardware our support team was overfilled with questions about numerous problems related to SIM cards and SMS deliverability. We would say that about 99% of the problems were for this reason. We won't that poor experience to our customers anymore.

In any case, you should have paid your mobile operator for the SIM card and data usage. Text (SMS) control is not even considered - this is an outdated technology that does not allow any quality real-time monitoring. Delivery of non-human generated SMS in many countries is regulated and more and more countries impose restrictions on this. This is especially true in North America and Australia. It is also noticeable that the SMS-only plans have become a rarity. Texting (SMS) from machines to humans is not reliable in any country anymore.

The main plans of mobile operators are designed to use a large amount of data for Internet browsing. New special plans for IoT (Internet of Things) usually have a small amount of data for a considerable fee. Our plans are developed in proportion to the features used and they are more beneficial for you that any plans from local operators.

Additionally, you get not just a bare connectivity but an all-in-one solution. On the top of just connectivity that you would anyway need to buy from your provider you get an absolutely convenient interface for managing your iSocket, guaranteed connection to ANY available mobile network and we after all will be able to provide effective support, which is impossible when clients use their own SIM cards.

In all respects, the new iSocket with built-in connectivity is much better!

Not saying that this is iSocket to last - it supports all modern mobile technologies that are here to stay for next decades.
Yes, you can! Text, voice or email notifications about power outages as well as power restore events are available in this new iSocket since 2021. Voice messages can be customized. Voice alerts about power outages are highly recommended, because they are not affected by different regulations/restrictions enforced by operators for text messages in some countries even though we are whitelisted for such alert.
In the new Plug-and-Go iSocket since 2021 you can add unlimited phones for power outage alerts as well as for notifications about other alarms, such as temperature rise / temperature fall, burglar, water leak, gas leak, etc.
Connectivity is integrated into iSocket. We pay third parties multiple fees even when you don't pay us. You can stop use it anytime, it is not a contractual agreement. There are options to suspend it temporary but they are mainly designed to protect you from loss of your devices. Please see Terms of Use for details - in Chapter 9 we explain by a non-bureaucratic language how it works. You may find this policy fine for your purposes. Otherwise please consider your cost as an annual cost - similar like what you pay to insurance companies for your car, home and never use it, or what you pay for a broadcasting, TV, etc. - even if you don't use them all the time, or taxes you pay for a remote cabin that you visits only few times in a year and probably never in Winter time.
Of course! We do not store your card details. Our payment provider BlueSnap is PCI compliant. You can also pay with PayPal if you wish so.
The warranty terms for products purchased from different retailers can vary. You need to contact the retailer who sold you the product in a warranty case. If you have ordered the product directly from iSocket Systems, we offer at least one year full warranty from the date of purchase. If you experience a fault, please contact us. We aim to give you full satisfaction when dealing with warranty! That is our advantage in compare with no-name sellers or corporations who don't care after they sold the product to you.
All iSockets are designed and assembled in Finland to strict quality standards. iSocket Systems is a manufacturer of devices. iSockets are not re-branded or re-manufactured from someone else's products, they are original, made by iSocket Systems with quality to last. The products come with the appropriate certification.
Products from the iSocket Smart Sockets family have been designed for consumers. You do not require specific knowledge to install and use smart sockets. They are plug-in devices. The products from the iSocket Smart Home family are products for integrators who undertake installations for their customer. These products require to be wired up and must be installed by qualified personnel with specific knowledge. In most countries only qualified personnel are legally allowed to perform installations on an AC network. However if you use products from the iSocket Smart Home family, e.g. iSocket Smart Relay in a house with DC voltage only (e.g. houses powered from sun panels), then you are most probably allowed to do the wiring yourself.
We have a full 100% burn-in test during manufacturing. We perform a functional test before shipping. This test can take up to 30 minutes per product, as a specially designed system checks all aspects of iSocket performance based on extensive documentation. When you buy directly from iSocket Systems, our system verifies that the test has been passed. The product that did not pass the test cannot be sent - the system will detect and prohibit it. We pay particular attention to signal strength. We reject units if the signal quality is lower than usual for the area where we perform the test. If the product has a temperature feature and is ordered with a temperature sensor we test it and check that it shows temperature correctly. Then we also check the power outage feature for devices where this feature is available. Finally, we reset the device to the default and package it for dispatch. It is 100% guaranteed that you will get a tested and working product.
We are a company with reputation who invented these power outage monitoring technologies more than 10 years ago when the world did not know about them. We are innovators of them and we are here to stay!
Any mobile phone! Even a phone from your grandmother, if this is cellular ;) Seriously, though, it does not matter if you have an iPhone, Samsung, BlackBerry, a contracted Verizon phone or locked AT&T phone or even an old Nokia 250. In fact, iSocket and your phone are independent from each other. You only need a phone to accept text messages or calls about power outages and other alarm events - the same way as you accept messages and calls from your friends. Moreover, iSocket can send a voice message to a landline phone. You can manage your new Plug-and-Go iSocket from a computer if you don't have a smart phone.
You don't need your own SIM card or data plan but you will have a plan with us. We offer you a plan in proportion to the features you use. Since 2021 iSocket is a hassle-free solution with integrated connectivity that allows your iSocket to be connected to any available mobile network out of the box. We pay cellular service providers a base fee to keep your iSocket up and running. On the top of that we pay a fee for data usage. We also pay to datacenters to support 24/7/365 operation of your iSocket. In fact the largest part of the payment will go to third parties. At the same time, our prices remain better than what you could get from local providers, because we buy services in large volumes.

When you only use iSocket occasionally we continue pay for such services to thirds parties. Finally, just a remote switching (reboot) feature uses the same amount of data/services as any other feature such as power outage alerting or even more, because it require the unit to be always online in order to access it remotely.
For a house in France it would be better to buy the model with a French plug. If you browse our website from the UK you will see models with a British plug in the list first. Tell us about preferable plug in comments to your order.
We use is a classical prepaid model - you can put any amount on your account balance and your service fees will be reduced from it according to your plan and text/voice messages or other one-time fee operations usage. Billing is daily for the plan (which means a certain amount is deducted from your account balance daily according to your plan) or based on the event for a one-time fee operations like text/voice messages (i.e. Pay As You Go, PAYG). Say, you put $100, your plan is $3.99/mo and you've got 200 messages for a given year. Your account balance will be $34.12 by the end of that year ($100-$3.99*12-200*$0.09). If you can figure out what will your average usage for text/voice messages about power outages or other alerts you can top up your account balance for the amount you need for one year. You can add additional features to your plan anytime you wish, it will be changing your monthly payment and so your account balance will be deplete earlier. We provide all details about your plan and fees in the 'Billing' section of your account. Everything is transparent and it's up to you to decide how much you put on your account balance in advance. You can configure auto top up too.
You have full rights to return a product in accordance with the terms of your retailer and the legislation prevailing in your country. Please check the terms of sale and return in each individual case with your retailer. If you purchased the product directly from iSocket Systems we offer a full money-back guarantee up to 30 days together with free test period up to 30 days.
Nope! We have 10+ years of experience in this field and we've invented these monitoring technologies. We know your needs and we are able to amaze you with how simple and easy everything will work out of the box without a complex configuration. We will configure iSocket for you based on your order and you can do changes anytime you wish via a convenient interface from your mobile phone or computer. This new (since 2021) iSocket that combines all our 10+ years experience is really awesome! Power, energy, temperature and alarm monitoring were never that easy!

Only for some alarm sensors (motion, smoke or gas detectors) you will need some help with wiring. This is another story and only few customers require this.

Contact us

You will get a response from us, the manufacturer, in Finland. We know our product - we know your concerns. We aim to reply within 12 hours. For technical support for existed customers please follow this link.

Your message has been sent. Thank you!

Contact Sales

iSocket power outage alarm device for North America

Now is the best time to get your iSocket at a bargain price. Only valid for the next few days.

With iSocket your home will be under control, you can turn your home appliances on and off remotely and you will always know when the power fails.