# Placing Probe Elements on Demand Side Nodes

**URL:** <https://discourse.ladybug.tools/t/placing-probe-elements-on-demand-side-nodes/23282>\
**Category:** ironbug\
**Created:** [November 20, 2023, 10:14pm UTC](https://discourse.ladybug.tools/t/placing-probe-elements-on-demand-side-nodes/23282 "2023-11-20T22:14:19Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Elliot\_Glassman](https://discourse.ladybug.tools/user_avatar/discourse.ladybug.tools/elliot_glassman/32/12443_2.png) [@Elliot\_Glassman](https://discourse.ladybug.tools/u/Elliot_Glassman)\
**Post date:** [November 20, 2023, 10:14pm UTC](https://discourse.ladybug.tools/t/placing-probe-elements-on-demand-side-nodes/23282/1 "2023-11-20T22:14:19Z")

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Have gotten in the habit of using Probes to help with my model troubleshooting. Unfortunately, I am having some issues with overheating and underheating on a couple models with VAV terminals with reheat, and to better understand the problem, I am trying to attach probes to the nodes before and after the air terminal.

 ![image](https://discourse.ladybug.tools/uploads/default/original/3X/2/5/25936319bfcad07861e009ce56de2cbf7bc2fc22.png)

I can’t seem to be able to figure out do this however; any suggestions?

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**Author:** ![feifeifie](https://discourse.ladybug.tools/letter_avatar_proxy/v4/letter/f/ec9cab/32.png) [@feifeifie](https://discourse.ladybug.tools/u/feifeifie)\
**Post date:** [July 28, 2025, 8:53am UTC](https://discourse.ladybug.tools/t/placing-probe-elements-on-demand-side-nodes/23282/2 "2025-07-28T08:53:01Z")

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Hi, I also encountered this problem 😢, did you figure out how to solve it?