4路继电器模块：DAM-3944B ky体育登录官网

p1Src=//y3.yzimgs.com/uploads/543182/2022325-111343415.jpg&p2Src=//y1.yzimgs.com/uploads/543182/2022325-111348947.jpg&p3Src=//y1.yzimgs.com/uploads/543182/2022325-111353734.jpg"

aa