1 Results for "《〈 문의 OIO↗5793↗7458 》〉 신사동몰디브㎹ 신사동몰디브dedicated강남몰디브강남가라오케강남몰디브가라오케roll 강남몰디브ㆆ び강남가라오케form"

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.