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ZXY6020S 60V 10A 600W Programable CNC DC-DC Regulated Power Supply Voltage Step Down Module with Digital Display Module

M9 Video Doorbell 720P/ 15fps 100MP WIFI XSH CAM /UBELL-APP Two-way Voice Intercom

JK11-5V 100S/15min/30min Delay Adjustable Infinite Loop Single-time Multi-function Relay Module Delay Circuit Module

1080P HD Wifi CCTV IP Camera Waterproof Outdoor PTZ Security Wireless IR Camera