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Body Fat Scale Smart Wireless Digital Bathroom Weight Scale Body Composition Analyzer With Smartphone App Bluetooth-compatible

50Pcs/1pc USB 3.1 Type C Connector 16 Pin Test PCB Board Adapter USB3.1 16P Connector Socket For Data Line Wire Cable Transfer

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Digital Alcohol Tester Professional Alcohol Detector Breathalyzer Police Alcotester LCD Display Drunk Driving Test for Home

DC 3.3V/5V Isolated TTL to RS485 Level Module Serial Port Auto-Reversing High-Speed 2Mbps Module