You can definitely reuse your old, factory installed OE TPMS sensors. Reusing your old sensors may be a money-saving choice at the moment, but actually can be quite costly in the future.
The average life span of an original equipment tire pressure monitoring sensor is 5 to 7 years. This means that many drivers are driving with on the road with sensors that may expire in the very near future. Reusing your old sensors, only to have them stop working shortly after is an expensive and time consuming problem.