NOTE: this is a third party product and should be ordered from the manufacturer's website.
The greenteg CORE is a wearable continuous body temperature measurement sensor. It is waterproof and very compact at 50mm x 40mm x 8.35mm. It connects to the Pilot using ANT and also works in combination with an ANT heart rate monitor to provide even more accurate core temperature data.
For information configuring the device then go to the help section on the Temperature Module.
Visit greenteg CORE for more information and to purchase.