hello sis lei glee,
yes, reusable yung digital monitor. yung strip one time lang.. i used the clear blue ovulation monitor very effective at sasabihan ka nya when to make love =) ito pa thankful ako sa device na ito, kasi kung nag strip lang ako i have no idea is it the best time to the test na.. last cycle ko i my ovulation was earlier,maybe with the help of EPO na din tapos ayun naka positive na kami =)