# Notify when sensors are offline/missing? **URL:** \ **Category:** Devices\ **Created:** [November 2, 2018, 5:16pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580 "2018-11-02T17:16:33Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![psy0rz](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/psy0rz/32/1801_2.png) [@psy0rz](https://community.homey.app/u/psy0rz)\ **Post date:** [November 2, 2018, 5:16pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/1 "2018-11-02T17:16:33Z")
Is there a way to detect if a device is missing? I have 30 zigbee door sensors (aqara), and i would like to know if one goes offline for some reason. Am i correct that a zigbee device reports every 60 minutes? Will it work if I add a device flow that triggers when a device did not report for something like 121 minutes? (then it can miss one report) ---
**Author:** ![Rocodamelshekima](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rocodamelshekima/32/8209_2.png) [@Rocodamelshekima](https://community.homey.app/u/Rocodamelshekima)\ **Post date:** [November 2, 2018, 7:10pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/2 "2018-11-02T19:10:59Z")
u can try the devices option in ur flow section, 2nd from top. Device has not reported in … ---
**Author:** ![Toon\_Vos](https://avatars.discourse-cdn.com/v4/letter/t/57b2e6/32.png) [@Toon\_Vos](https://community.homey.app/u/Toon_Vos)\ **Post date:** [November 3, 2018, 7:15am UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/3 "2018-11-03T07:15:28Z")
But they only report changes, so you will have to open all windows to check this ---
**Author:** ![psy0rz](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/psy0rz/32/1801_2.png) [@psy0rz](https://community.homey.app/u/psy0rz)\ **Post date:** [November 10, 2018, 10:41am UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/4 "2018-11-10T10:41:58Z")
Indeed. Does someone know if things like vibration sensors report every X hours to that they are still there/alive? ---
**Author:** ![Geurti](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/geurti/32/8560_2.png) [@Geurti](https://community.homey.app/u/Geurti)\ **Post date:** [February 23, 2020, 5:46pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/5 "2020-02-23T17:46:04Z")
Ik know, it’s an old post. Maybe someone can help me to solve this. I tried to make a flow with your idea. Example: If: One device did not report for x time And: Sensor is off in kitchen Then: Telegram me, kitchen sensor did not report. I started with the lowest option in time and tried all the options till 24 hours. This morning I got 8 the same messages about four different sensors at the same time. Since I set these flows I got already 13 different messages. How? Is my flow completely wrong? Or is there something wrong with Athom? ---
**Author:** ![Rocodamelshekima](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rocodamelshekima/32/8209_2.png) [@Rocodamelshekima](https://community.homey.app/u/Rocodamelshekima)\ **Post date:** [February 23, 2020, 5:53pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/6 "2020-02-23T17:53:17Z")
> [@Geurti](#): > > Is my flow completely wrong? We won’t know untill u show us the flow aye? ---
**Author:** ![Geurti](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/geurti/32/8560_2.png) [@Geurti](https://community.homey.app/u/Geurti)\ **Post date:** [February 23, 2020, 6:22pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/7 "2020-02-23T18:22:07Z")
Sure! https: Sorry, too much private info 😉 ---
**Author:** ![Rocodamelshekima](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rocodamelshekima/32/8209_2.png) [@Rocodamelshekima](https://community.homey.app/u/Rocodamelshekima)\ **Post date:** [February 23, 2020, 6:25pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/8 "2020-02-23T18:25:11Z")
Try this: ![chrome_2020-02-23_19-23-53](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/4/2/42bef814f74d873b435121752910142b8739011d.png) Tag comes from the first card. If u don’t know how to use tags then look [here](https://community.homey.app/t/how-to-use-tags-in-a-flow/9285). ---
**Author:** ![Geurti](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/geurti/32/8560_2.png) [@Geurti](https://community.homey.app/u/Geurti)\ **Post date:** [February 23, 2020, 6:39pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/9 "2020-02-23T18:39:16Z")
This flow didn’t work and I got an error when tested ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/c/e/ce27b8afc7b442d263aab491a97a885115a6f2b8.jpeg) https:// The last reporting time was about 40 minutes ago. ---
**Author:** ![Rocodamelshekima](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rocodamelshekima/32/8209_2.png) [@Rocodamelshekima](https://community.homey.app/u/Rocodamelshekima)\ **Post date:** [February 23, 2020, 6:43pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/10 "2020-02-23T18:43:25Z")
> [@Geurti](#): > > I got an error when tested Then u have an error in the device name while testing? ---
**Author:** ![Geurti](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/geurti/32/8560_2.png) [@Geurti](https://community.homey.app/u/Geurti)\ **Post date:** [February 23, 2020, 6:44pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/11 "2020-02-23T18:44:24Z")
I copied the name, to be sure not making a mistake. Also checked for space error. ---
**Author:** ![Rocodamelshekima](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rocodamelshekima/32/8209_2.png) [@Rocodamelshekima](https://community.homey.app/u/Rocodamelshekima)\ **Post date:** [February 23, 2020, 6:47pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/12 "2020-02-23T18:47:38Z")
Well, it’s working here so maybe double check? ![chrome_2020-02-23_19-46-57](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/9/d/9d76e28e98aa3d3c214fee4c4e7b151d049f34bb.png) ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/4/9/497f3c20c9d3a165e2feb33f2f01ac2e650b0bdf.jpeg) ---
**Author:** ![Geurti](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/geurti/32/8560_2.png) [@Geurti](https://community.homey.app/u/Geurti)\ **Post date:** [February 23, 2020, 6:55pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/13 "2020-02-23T18:55:17Z")
I tried both options, Zone and Name Zone I named keuken And Name I named ASW/D keuken Both are not working. Heb ik weer 🤣 ---
**Author:** ![Rocodamelshekima](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rocodamelshekima/32/8209_2.png) [@Rocodamelshekima](https://community.homey.app/u/Rocodamelshekima)\ **Post date:** [February 23, 2020, 6:56pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/14 "2020-02-23T18:56:28Z")
And ur device is actually named “ASW/D keuken” ? ---
**Author:** ![Geurti](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/geurti/32/8560_2.png) [@Geurti](https://community.homey.app/u/Geurti)\ **Post date:** [February 23, 2020, 7:02pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/15 "2020-02-23T19:02:56Z")
For sure 😊 ---
**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\ **Post date:** [February 23, 2020, 7:21pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/16 "2020-02-23T19:21:35Z")
Try testing with a name that doesn’t contain a `/` character. ---
**Author:** ![Rocodamelshekima](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rocodamelshekima/32/8209_2.png) [@Rocodamelshekima](https://community.homey.app/u/Rocodamelshekima)\ **Post date:** [February 23, 2020, 7:23pm UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/17 "2020-02-23T19:23:28Z")
Just tested with a name that does contain the slash and that also works here. ![chrome_2020-02-23_20-33-06](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/4/5/451c0d899f23eeee9dda9655b3010297c5cf0188.png) ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/d/5/d5bd3825ca9e189a95d98c3f7a2846c4d5c1b64c.jpeg) Side note: running Homey version 3.2.1 ---
**Author:** ![Geurti](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/geurti/32/8560_2.png) [@Geurti](https://community.homey.app/u/Geurti)\ **Post date:** [February 24, 2020, 10:07am UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/18 "2020-02-24T10:07:26Z")
> [@Rocodamelshekima](#): > > Side note: running Homey version Tried several things but same result. Running Homey version 4.0.0 Could that be the reason? ---
**Author:** ![Rocodamelshekima](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rocodamelshekima/32/8209_2.png) [@Rocodamelshekima](https://community.homey.app/u/Rocodamelshekima)\ **Post date:** [February 24, 2020, 10:19am UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/19 "2020-02-24T10:19:29Z")
> [@Geurti](#): > > Could that be the reason? Dunno, that’s why I added it. First I would rename the device to something easy named. Without capitals and slashes. Maybe someone on 4.x.x can try this for u? ---
**Author:** ![Geurti](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/geurti/32/8560_2.png) [@Geurti](https://community.homey.app/u/Geurti)\ **Post date:** [February 24, 2020, 11:13am UTC](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580/20 "2020-02-24T11:13:14Z")
I tried an other one with only “voordeur” and same result. Someone else tried already? [Next page](https://community.homey.app/t/notify-when-sensors-are-offline-missing/3580.md?page=2)