# Reset ui gauge classic
**URL:** https://discourse.nodered.org/t/reset-ui-gauge-classic/90400
**Category:** Dashboard
**Tags:** dashboard-2
**Created:** [24 August 2024 18:14 UTC](https://discourse.nodered.org/t/reset-ui-gauge-classic/90400 "2024-08-24T18:14:28Z")
**Posts on this page:** 13
**Page:** 1
### Author:  [@Panda](https://discourse.nodered.org/u/Panda)
#### Post date: [24 August 2024 18:14 UTC](https://discourse.nodered.org/t/reset-ui-gauge-classic/90400/1 "2024-08-24T18:14:29Z")
Hey guys,
I use this gauge with the 3 values & needles. I want to clear the values & the needles, the needles should go to zero & the values should show "-".
If I set the values to "null" via function node, the last values are always shown.
Does anyone have an idea what I'm doing wrong & has a tip for me?
This is after the "clear" button:
And this is what I want:
Thanks in advance
---
### Author:  [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)
#### Post date: [24 August 2024 18:19 UTC](https://discourse.nodered.org/t/reset-ui-gauge-classic/90400/2 "2024-08-24T18:19:18Z")
@Colin - FYI
---
### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [24 August 2024 18:49 UTC](https://discourse.nodered.org/t/reset-ui-gauge-classic/90400/4 "2024-08-24T18:49:32Z")
Sending an empty string will reset it.
---
### Author:  [@Panda](https://discourse.nodered.org/u/Panda)
#### Post date: [24 August 2024 19:11 UTC](https://discourse.nodered.org/t/reset-ui-gauge-classic/90400/5 "2024-08-24T19:11:47Z")
I'm using a function node with:
```auto
var res = {payload: "", topic: "PC min. Temp"};
return res;
```
directly connected to the gauge node, the needle goes down but the value is still there
---
### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [24 August 2024 19:34 UTC](https://discourse.nodered.org/t/reset-ui-gauge-classic/90400/6 "2024-08-24T19:34:20Z")
Is that the first needle? The value displayed is for the first one.
---
### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [24 August 2024 19:35 UTC](https://discourse.nodered.org/t/reset-ui-gauge-classic/90400/7 "2024-08-24T19:35:56Z")
If it isn't that then export the function node and the gauge and post them here.
---
### Author:  [@Panda](https://discourse.nodered.org/u/Panda)
#### Post date: [24 August 2024 19:53 UTC](https://discourse.nodered.org/t/reset-ui-gauge-classic/90400/8 "2024-08-24T19:53:41Z")
I can't export atm, because I'm on my smartphone.
I think it must be something with msg.ui\_update
```auto
var res = {payload: "", topic: "PC min. Temp"};
msg.ui_update = {units:''}
return res,msg;
```
---
### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [24 August 2024 20:18 UTC](https://discourse.nodered.org/t/reset-ui-gauge-classic/90400/9 "2024-08-24T20:18:16Z")
it appears you have found a bug. Setting the units to an empty string does not work. I have opened [an issue](https://github.com/colinl/node-red-dashboard-2-ui-gauge-classic/issues/10) to remind me to fix it. It may take a few days to get round to it. In the meantime use, for example
`msg.ui_update = {units:'-'}`
---
### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [24 August 2024 20:20 UTC](https://discourse.nodered.org/t/reset-ui-gauge-classic/90400/10 "2024-08-24T20:20:56Z")
By the way, you can do it all in one message, which is a little more efficient.
```auto
msg.payload = ""
msg.topic: "PC min. Temp"};
msg.ui_update = {units:'-'}
return msg
```
---
### Author:  [@Panda](https://discourse.nodered.org/u/Panda)
#### Post date: [24 August 2024 20:26 UTC](https://discourse.nodered.org/t/reset-ui-gauge-classic/90400/11 "2024-08-24T20:26:52Z")
Yes, thank you so much. Finally it works the way I want it. But there are some spelling mistakes:
```auto
msg.payload = "";
msg.topic="PC min. Temp";
msg.ui_update = {units:'-'};
return msg;
```
---
### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [24 August 2024 20:59 UTC](https://discourse.nodered.org/t/reset-ui-gauge-classic/90400/12 "2024-08-24T20:59:49Z")
> [@Panda](#):
>
> But there are some spelling mistakes:
True, I have to leave something for you to do 🙂
In modern JS, the semi-colons are not needed, so this should work too
```auto
msg.payload = ""
msg.topic="PC min. Temp"
msg.ui_update = {units:'-'}
return msg
```
---
### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [25 August 2024 11:19 UTC](https://discourse.nodered.org/t/reset-ui-gauge-classic/90400/14 "2024-08-25T11:19:38Z")
This is fixed now, version 1.2.1 is available for install.
---
### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [8 September 2024 11:20 UTC](https://discourse.nodered.org/t/reset-ui-gauge-classic/90400/15 "2024-09-08T11:20:21Z")
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