1 Results for "《 예약문의 OIO≡⑧④89≡83O⑥》선릉레깅스룸㉹ベgrace레깅스룸Ｓ선릉레깅스룸선릉레깅스е я레깅스룸비용superstition 강남레깅스룸′강남레깅스§８fetch"

In this period of isolation, I'm trying to build an oximeter with parts already in house. An oximeter is made by two leds and a photodiode.