# Can't pair any longer the Bluetooth Smart Sensor ITH-12S **URL:** \ **Category:** Questions & Answers\ **Created:** [January 13, 2023, 12:33am UTC](https://community.inkbird.com/t/cant-pair-any-longer-the-bluetooth-smart-sensor-ith-12s/12202 "2023-01-13T00:33:23Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![cinghialino](https://avatars.discourse-cdn.com/v4/letter/c/d07c76/32.png) [@cinghialino](https://community.inkbird.com/u/cinghialino)\ **Post date:** [January 13, 2023, 12:33am UTC](https://community.inkbird.com/t/cant-pair-any-longer-the-bluetooth-smart-sensor-ith-12s/12202/1 "2023-01-13T00:33:23Z")
Hello, I can’t put my Bluetooth Smart Sensor ITH-12S in Pairing mode. I can’t find the sensor when trying to pair it. The manual is not helping. Any tips? ---
**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:** [January 13, 2023, 2:00am UTC](https://community.inkbird.com/t/cant-pair-any-longer-the-bluetooth-smart-sensor-ith-12s/12202/2 "2023-01-13T02:00:03Z")
Hello, Please check if the Bluetooth of ITH-12S is turned on. Please refer to this troubleshooting post. The ITH-12S uses the Engbird app, which requires the same settings on the phone. > [@Q&A: How to connect the IBS-TH1/IBS-TH2 series?](https://community.inkbird.com/t/q-a-how-to-connect-the-ibs-th1-ibs-th2-series/167): > > Please search and download the Engbird app via Google play/ App store on your phone. When installing, please make sure that all permissions of Engbird are allowed. When connecting, please try to place the sensor next to the phone. Open the Engbird app, and turn on the phone’s Bluetooth and location functions. Please make sure that the Bluetooth of the mobile phone is not connected to other Bluetooth devices. (Since the Google policy upgradation of SDK (Software Development Kit) to the latest …