The manual says that you can use HRM-Tri for Forerunner 245, but if you check the manual for HRM-Tri, the Forerunner 245 is not included under compatible devices.
The manual says that you can use HRM-Tri for Forerunner 245, but if you check the manual for HRM-Tri, the Forerunner 245 is not included under compatible devices.
They are compatible. The HRM-Tri was released before the 245, that's why it's not on the list with compatible devices of the HRM-Tri.
Tanks, order one now for 90 Euro.