# IBS M2 Pool temperature sensor

**URL:** <https://community.inkbird.com/t/ibs-m2-pool-temperature-sensor/160790>\
**Category:** Questions & Answers\
**Tags:** smart-sensors\
**Created:** [May 21, 2024, 11:31pm UTC](https://community.inkbird.com/t/ibs-m2-pool-temperature-sensor/160790 "2024-05-21T23:31:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![User\_1716320714279](https://avatars.discourse-cdn.com/v4/letter/u/4491bb/32.png) [@User\_1716320714279](https://community.inkbird.com/u/User_1716320714279)\
**Post date:** [May 21, 2024, 11:31pm UTC](https://community.inkbird.com/t/ibs-m2-pool-temperature-sensor/160790/1 "2024-05-21T23:31:42Z")

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Hi I just got the IBS M2 pool water temperature transmitter, all appears to work well, except that the temperature appear to be off by ~ 5 Degrees. it shoes around 25, when it should be around 20, how can it be reset, adjusted, etc.  
Thanks  
Jose

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<div class="post-metadata">

**Author:** ![Tania](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.inkbird.com/tania/32/88_2.png) [@Tania](https://community.inkbird.com/u/Tania)\
**Post date:** [May 23, 2024, 7:33am UTC](https://community.inkbird.com/t/ibs-m2-pool-temperature-sensor/160790/2 "2024-05-23T07:33:18Z")

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Hello,  
Please connect IBS-M2 to INKBIRD app.  
If the reading of IBS-M2 is inaccurate, please set the temperature calibration value ‘-5’ through the setting icon in the lower left corner. (Please understand that the screenshots are only to show the location of the settings. Please make sure the device remains online, otherwise the settings will not be saved.)

 ![image](https://canada1.discourse-cdn.com/flex031/uploads/inkbird1/original/2X/0/054d7d07973fbcba43ee67f92c6075083453c0ee.png)  
 ![image](https://canada1.discourse-cdn.com/flex031/uploads/inkbird1/original/2X/d/da057d9a4877a10afe8fbd22b02f4cb1b9f62012.jpeg)

If the reading of the pool thermometer is inaccurate, please select the sensor channel and set the temperature calibration value ‘-5’ through the setting icon in the lower left corner.

 ![image](https://canada1.discourse-cdn.com/flex031/uploads/inkbird1/original/2X/c/c97c3d5fc0457bc8c88c559e23732818484f512d.png)  
 ![image](https://canada1.discourse-cdn.com/flex031/uploads/inkbird1/original/2X/e/e41b2269ff653958d982232b2183a3a146a28924.jpeg)