Posted on September 16, 2022 555 blood leak alarm circuit Industrial Router Crystal 3.2*2.5mm 3225 26M (26.000MHZ) 12PF 10PPM 20PPM 30PPM Photocoupler μA741NE555 6 Pin Automotive Connector HousingWenzhou Langrun Electric Co.,Ltd , https://www.langrunele.com Post navigation Previous Post: Bootstrap circuit Next Post: Check and maintenance precautions for the isolating switch