Troubleshooting Bluetooth Connection

Updated by Elizabeth Smith

  1. Make sure your batteries have enough power.  
  • - The logger needs at least 10% power.  
  • - Try replacing the batteries with known good batteries  

  1. Press the test button 
  • - the test button needs to be pressed to activate Bluetooth. The lights should blink green and red immediately after pressing the button. 
  • - the Bluetooth will stay on for 3 min if there is no active connection 


  1. Use ZENTRA Utility Mobile (ZUM) 
  • - Make sure location permissions are allowed/are on 


If you still cannot connect please send an email to  

  • Please include any screenshots and actions you did to connect the logger/ZUM 

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