# How to Monitor multiple Devices in Same Group/ Gauges

**URL:** <https://discourse.nodered.org/t/how-to-monitor-multiple-devices-in-same-group-gauges/78859>\
**Category:** Dashboard\
**Tags:** node-red-dashboard, function-node\
**Created:** [1 June 2023 07:26 UTC](https://discourse.nodered.org/t/how-to-monitor-multiple-devices-in-same-group-gauges/78859 "2023-06-01T07:26:54Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ahsan.zahid](https://avatars.discourse-cdn.com/v4/letter/a/7c8e57/32.png) [@ahsan.zahid](https://discourse.nodered.org/u/ahsan.zahid)\
**Post date:** [1 June 2023 07:26 UTC](https://discourse.nodered.org/t/how-to-monitor-multiple-devices-in-same-group-gauges/78859/1 "2023-06-01T07:26:54Z")

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Hello there,

I wanted to know, As I have Energy Meter x 20, all have same Modbus registers, I have created 2 pages, I wan to add drop down menu where I can select any device and dashboard starts showing the data of that particular device.

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**Author:** ![jbudd](https://avatars.discourse-cdn.com/v4/letter/j/5f8ce5/32.png) [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Post date:** [1 June 2023 08:19 UTC](https://discourse.nodered.org/t/how-to-monitor-multiple-devices-in-same-group-gauges/78859/2 "2023-06-01T08:19:40Z")

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Welcome to the foru @ahsan.zahid.

Of course you need some way to distinguish one energy meter's data from another.  
Often in Node-red you would have the unique name of the device in msg.topic, but any message property works too.

Then something like this will work:

 ![Untitled 2](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/d/b/db1fe0548456fc99667b227a9248bd4d4397fd68.jpeg)

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [1 July 2023 08:20 UTC](https://discourse.nodered.org/t/how-to-monitor-multiple-devices-in-same-group-gauges/78859/3 "2023-07-01T08:20:26Z")

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