# Notification when my sonoff device cuts from power source
**URL:** https://forum.ewelink.cc/t/notification-when-my-sonoff-device-cuts-from-power-source/32471
**Category:** Feature Request
**Created:** [May 6, 2024, 6:03pm UTC](https://forum.ewelink.cc/t/notification-when-my-sonoff-device-cuts-from-power-source/32471 "2024-05-06T18:03:04Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@arslanghouri263](https://forum.ewelink.cc/u/arslanghouri263)
#### Post date: [May 6, 2024, 6:03pm UTC](https://forum.ewelink.cc/t/notification-when-my-sonoff-device-cuts-from-power-source/32471/1 "2024-05-06T18:03:04Z")
I need a notification when my Sonoff device loses power. Because I have a lot of power outage in my area so I want know when my sonoff device is not available .
---
### Author:  [@Tamer\_Salah](https://forum.ewelink.cc/u/Tamer_Salah)
#### Post date: [May 6, 2024, 7:50pm UTC](https://forum.ewelink.cc/t/notification-when-my-sonoff-device-cuts-from-power-source/32471/2 "2024-05-06T19:50:42Z")
go to the desired device setting page and enable offline alert
---
### Author:  [@morgan](https://forum.ewelink.cc/u/morgan)
#### Post date: [May 6, 2024, 7:59pm UTC](https://forum.ewelink.cc/t/notification-when-my-sonoff-device-cuts-from-power-source/32471/3 "2024-05-06T19:59:30Z")
> [@Tamer\_Salah](#):
>
> go to the desired device setting page and enable offline alert
By chance, these notifications do not arrive with a delay of 1 hour or per 1 hour… something is bothering me in the back of my mind.
@ward ? 🙂
---
### Author:  [@Tamer\_Salah](https://forum.ewelink.cc/u/Tamer_Salah)
#### Post date: [May 6, 2024, 8:01pm UTC](https://forum.ewelink.cc/t/notification-when-my-sonoff-device-cuts-from-power-source/32471/4 "2024-05-06T20:01:19Z")
today i rebooted my main router , and got the notification within 5 min , i dont know if the delay caused by ewelink servers .
---
### Author:  [@jam3](https://forum.ewelink.cc/u/jam3)
#### Post date: [May 6, 2024, 8:14pm UTC](https://forum.ewelink.cc/t/notification-when-my-sonoff-device-cuts-from-power-source/32471/5 "2024-05-06T20:14:13Z")
> [@morgan](#):
>
> these notifications do not arrive with a delay of 1 hour
This varies. You never know. Sometimes notifications come straight away, sometimes after a long time or not at all. I have not been able to observe any patterns. Not good for @arslanghouri263 plans 💁♂️
---
### Author:  [@morgan](https://forum.ewelink.cc/u/morgan)
#### Post date: [May 6, 2024, 8:21pm UTC](https://forum.ewelink.cc/t/notification-when-my-sonoff-device-cuts-from-power-source/32471/6 "2024-05-06T20:21:09Z")
> [@jam3](#):
>
> This varies. You never know. Sometimes notifications come straight away, sometimes after a long time or not at all. I have not been able to observe any patterns. Not good for @arslanghouri263 plans 💁♂️
That’s what I thought… recently there was even a thread about notifications when the device is offline and I think there was a mention of different times. Unless I dreamed it… 🙂
---
### Author:  [@morgan](https://forum.ewelink.cc/u/morgan)
#### Post date: [May 6, 2024, 8:35pm UTC](https://forum.ewelink.cc/t/notification-when-my-sonoff-device-cuts-from-power-source/32471/7 "2024-05-06T20:35:45Z")
[https://forum.ewelink.cc/t/instant-offline-notification-and-mailing](https://forum.ewelink.cc/t/instant-offline-notification-and-mailing)
I knew I wasn’t crazy. 🙂
> [@Instant offline notification and mailing](https://forum.ewelink.cc/t/instant-offline-notification-and-mailing/31863/5):
>
> It usually sends a status report to the gateway every hour. If the gateway misses one of these, you’ll get a warning that the device is offline. But remember, there’s an hour-long gap between these reports.
---
### Author:  [@ward](https://forum.ewelink.cc/u/ward)
#### Post date: [May 7, 2024, 7:49am UTC](https://forum.ewelink.cc/t/notification-when-my-sonoff-device-cuts-from-power-source/32471/8 "2024-05-07T07:49:02Z")
It depends on the device itself. Like I mentioned in another post. Battery-powered ones tend to have longer periods while main-powered ones are more responsive.
You can alter this setting in some customized zigbee firmware but it would drain the battery quickly if it reports too much.
---
### Author:  [@morgan](https://forum.ewelink.cc/u/morgan)
#### Post date: [May 7, 2024, 11:45am UTC](https://forum.ewelink.cc/t/notification-when-my-sonoff-device-cuts-from-power-source/32471/9 "2024-05-07T11:45:17Z")
> [@ward](#):
>
> It depends on the device itself. Like I mentioned in another post. Battery-powered ones tend to have longer periods while main-powered ones are more responsive.
>
> You can alter this setting in some customized zigbee firmware but it would drain the battery quickly if it reports too much.
And that explains everything. 🙂
So, to sum up, if someone expects to have fast live monitoring for each device immediately when something goes offline, they should not count on it too much.
---
### Author:  [@alexdiazoe](https://forum.ewelink.cc/u/alexdiazoe)
#### Post date: [August 1, 2025, 9:00pm UTC](https://forum.ewelink.cc/t/notification-when-my-sonoff-device-cuts-from-power-source/32471/10 "2025-08-01T21:00:48Z")
```auto
Some observations about ewelink notifications on Android that I have noticed: if the mobile phone has been locked for more than 3 minutes, the notifications do not arrive until the phone is unlocked!! Has anyone already noticed it? How did they solve it?
```
Algunas observaciones de las notificaciones de ewelink en android que he notado: si el telefono mobil tiene mas de 3 minutos bloqueado las notificaciones no llegan hasta que se desbloquea el teelfono!! alguien ya la habia notado?? como solucionaron?