3V Relay Power Switch Board AYWHP 6 Pieces 1 Channel Relay Power Switch Module Optocoupler Optoisolation High Level Trigger for IOT ESP8266 Microcontroller Development Board sold2026 and bring him or her

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Compatiable For To the side of the lens: 58mm To the side of the filter thread:77mm Package Includes: 58mm to 77mm Metal Step Up Ring Adapter 1 (Original Manufactory Package)

- Heavy duty smoker clamp is made of steel

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3V Relay Power Switch Board AYWHP 6 Pieces 1 Channel Relay Power Switch Module Optocoupler Optoisolation High Level Trigger for IOT ESP8266 Microcontroller Development Board sold2026 and bring him or her3V Relay Power Switch Board AYWHP 6 Pieces 1 Channel Relay Power Switch Module Optocoupler Optoisolation High Level Trigger for IOT ESP8266 Microcontroller Development Board Description: This 3V relay switching module is ideal for IoT and microcontroller development projects. It is equipped with high quality optocoupler insulation, which can effectively protect the development board from external interference. The high level trigger method facilitates