Home temperature alert for kids and elderly | SaveElectro
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Peace of mind

Know when it gets too cold or too hot for someone you care for

A home temperature alert for the people you care for, whether an elderly parent living alone or a small child's room: a small sensor tells SaveElectro the temperature. If it drops below or rises above the limits you set, you get a message, and so can up to three family members or carers. Day or night, if you choose.

A notification service, not a care alarm. It does not replace a safety phone, regular visits or emergency services.

Your mother lives alone, two hours' drive away. One January night a breaker trips and her living room slowly cools. She doesn't notice, or doesn't want to bother anyone. You find out on Sunday when you call.

Or it is July, the third week of a heat wave, and her top-floor flat is getting hotter every day. Long heat waves send more older people to hospital, and Finland's health institute THL advises keeping in daily contact with people at risk.

The same goes for the youngest. A child's bedroom can cool down on a winter night after a radiator fails, or get too hot under the roof in summer, while the parents sleep at the other end of the house or the grandparents are babysitting.

SaveElectro can't visit or check for you. But it can tell you, and the people you choose, the moment the temperature goes outside the range you agreed on.

What the home temperature alert sends you and the family

One message when a limit is crossed, and one when it is back to normal. Never a stream of repeats.

Mum's living room
17.2 °C
Below the 19 °C minimum since 02:10
Mum's bedroom
20.4 °C
Alerts below 19 or above 26 °C
Sensors
Reporting
Last reading 4 min ago
Who is told
You + Anna
Anna lives nearby and gets emergencies at night too
Mum's living room: below limit · 02:10
17.2 °C, the minimum is 19 °C. Sent to you and Anna.
Mum's living room: back to normal · 03:25
19.3 °C again.
Example with sample data. Your own view follows your sensors and your limits.

What SaveElectro does

Too cold

An alert when a room drops below the minimum you set, for example after a tripped breaker or a heater that has stopped working, and another when it recovers.

Too hot

An alert when a room rises above your maximum during a heat wave, so someone can call, visit, close the blinds or bring a fan before it becomes dangerous.

Family and carers told too

Add up to three people per home: a sister nearby, a neighbour, a home-care nurse. Each one gets the same alerts by email, with their own quiet hours. Premium.

Day or night, your choice

Too cold, too hot and similar safety alerts are emergency alerts. Each person decides whether these may wake them in their quiet hours. Everything else waits for one morning summary.

Told if a sensor goes quiet

If a sensor stops reporting (a flat battery, a lost Wi-Fi connection, a power cut), you hear about it instead of trusting an old reading. On by default.

Keeps the room warm too, if you want

With electric convectors on a Shelly relay, SaveElectro can also heat the room whenever it drops below the minimum, whatever the electricity price. See Heating.

Which temperatures to choose

The World Health Organization's housing guidelines propose 18 °C as a safe indoor minimum in cold seasons for the general population, and note that a higher minimum may be needed for older people, children and people with chronic illness, especially heart and lung disease.

For heat, THL warns that a long heat wave increases hospital care and deaths, especially among older people and people with chronic illness, and advises daily contact with people at risk.

Agree the limits with the person you care for and, if they have a care plan, with their nurse or doctor. For a baby or a small child, ask your child health clinic (neuvola) or doctor which room temperature they recommend. You can change the limits at any time.

How to get started

1
Place a sensor
A Shelly H&T in the room where the person spends most time, or in the child's bedroom, on USB power. No electrician needed.
2
Set limits and people
A minimum and a maximum temperature, and who else should be told: family, a neighbour, a carer.
3
Get told
One message when a limit is crossed and one when it is back to normal, to everyone you chose.

What you need

A temperature sensor

A Shelly H&T per room, on USB power, so it reports every few minutes. On batteries it reports much less often, which is too slow for this use.

Wi-Fi from a router

A home router's 2.4 GHz network and a working internet connection. Not a phone hotspot: when the phone leaves, the sensor goes silent.

Premium for family and carers

On the free plan, alerts reach the account owner. Premium adds up to three more people per home, each receiving alerts by email with their own quiet hours.

Any electricity contract

Temperature alerts work with any contract. No exchange-price contract needed.

What this is, and what it is not

SaveElectro is a notification service. It is not a care alarm, a safety phone or a medical device, and nobody watches the alerts around the clock. It works only while the sensor has power and the home has Wi-Fi and internet, and messages travel through Shelly's cloud and your chosen channel. If a person may need help quickly, keep the care alarm, the visits and the phone calls. SaveElectro adds one more pair of eyes on the temperature.

Questions people ask

Will an alert wake me at night?

Only if you allow it. Too cold, too hot and other safety alerts are emergency alerts; each person chooses in Settings whether these may come during their quiet hours. A "back to normal" message follows at night too, so you can go back to sleep. Everything else waits for one summary when your quiet hours end.

What if the power or the internet goes out?

Then the sensor can't report, and you get a "no reading" alert after the time you choose (6 hours unless you change it; on USB power 1 hour works well). That message waits for the morning summary, because at night it is usually just the router restarting.

Does the person need a smartphone or an app?

No. The sensor sits on a shelf and shows the temperature on its own screen. Only the people receiving alerts need email (the account owner can also use Telegram or, on Premium, WhatsApp).

Can SaveElectro turn the heating on?

Yes, if the room has electric convectors on a Shelly relay set up as room heating: it then heats whenever the room is below the minimum. Without a relay, SaveElectro only watches and tells you.

Start with one sensor in the living room

One sensor and two limits are enough to know that the home of someone you love is warm in winter and not overheating in summer.

Free plan needs no card · Family and carers on Premium

Sources: WHO Housing and health guidelines (2018), chapter 4: Low indoor temperatures and insulation · THL: Prolonged heat is a health risk, especially for older and chronically ill people

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