How do I wear my Tempdrop?


Your Tempdrop sensor is worn over the Axillary artery area just below the armpit. To help position it correctly, feel for the soft skin between the bicep and triceps. Curvier ladies may need to wear it closer to the armpit over the thinnest skin. 

The tip of the sensor should be orientated towards the elbow and the metal button against the skin.

Your armband must be adjusted so it's very firm without causing discomfort to ensure the sensor maintains good skin contact and doesn't move during sleep. Thread the metal hook through a lace loop to lock your size and slide it on/off each day to maintain consistency. The elastic can stretch over time so be sure to readjust if needed once in a while. 


The sensor can be placed in a high, firm sports bra as an alternative wearing position. The tip is orientated down and the sensor positioned as demonstrated below. It's important to maintain consistency with placement and ensure the bra is tight enough to keep the sensor firm against the body during sleep with minimal movement. 


  • Don't switch placement sites or arms mid-cycle as this can influence your temp range. If circumstances mean you do need to switch positions, note that change and take it into consideration when interpreting your results. 
  • Periodically check the armband tightness as the band is prone to stretch over time. Hook the metal catch through a lace loop to lock the size in place, sliding it off and on each night will help keep your tightness consistent. 
  • The supplied armband is completely modular, you can create your own alternative if you wish.

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