# Insights graphs for ppd and ppb values **URL:** \ **Category:** Questions & Help\ **Tags:** insights\ **Created:** [March 1, 2022, 10:24am UTC](https://community.homey.app/t/insights-graphs-for-ppd-and-ppb-values/61198 "2022-03-01T10:24:54Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Chillout](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/chillout/32/29997_2.png) [@Chillout](https://community.homey.app/u/Chillout)\ **Post date:** [March 1, 2022, 10:24am UTC](https://community.homey.app/t/insights-graphs-for-ppd-and-ppb-values/61198/1 "2022-03-01T10:24:54Z")
Hi all, I’ve noticed that Insights show graphs for various types of sensor data (like µg/m³, ppd), but some aren’t supported (ppd, ppb). Example: This sensor has ppd, ppm and ppb, but only the ppm values can be graphed: ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/c/3/c31524b752ed271bc2caa85e9c9ca967eec0fc8a.png) ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/2/0/204750838e053ea3e8562982f9fe32f6611f7f77.png) Is there any reason why ppb and ppd units aren’t visible as graph? ---
**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:** [March 1, 2022, 10:39am UTC](https://community.homey.app/t/insights-graphs-for-ppd-and-ppb-values/61198/2 "2022-03-01T10:39:28Z")
The default for custom capabilities is not to generate Insights data. The CO2 sensor is based on an existing capability (`measure_co2`), hence its data _will_ generate Insights data. The developer of the app can change this behaviour. ---
**Author:** ![Chillout](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/chillout/32/29997_2.png) [@Chillout](https://community.homey.app/u/Chillout)\ **Post date:** [March 1, 2022, 12:13pm UTC](https://community.homey.app/t/insights-graphs-for-ppd-and-ppb-values/61198/3 "2022-03-01T12:13:24Z")
In this case, (Tasmota app) it has a capability “measure\_particulate\_matter.pm2\_5”. I guess that’s not right indeed 🙂 and should be measure\_pm25