What Bluetooth radio frequency does my biosensor use? The radio frequency is 2.402–2.480 GHz BLE, modulation is GFSK, and maximum power output is 0 dBm EIRP. 1. Related articles What if my biosensor comes off too soon? Why does my new biosensor give higher or lower glucose readings than my previous biosensor? Can I still use a biosensor after it expires? What battery is in my biosensor? Why do my Lingo results differ from results from finger stick test?