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10pcs QF1021-A-10M 0-10Min Adjustable 220V Time Delay Relay Module Timer Delay Switch Timed Off with Overcharge Protection

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5pcs QF1022-A-100S 220V AC Power-on Delay 0-100S Adjuatable Timer Switch Automatic Disconnect Relay Module Dry Contact Output

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5pcs QF-RD21 5V Power-off Delay Disconnect Relay Module Timer Delay Switch Module

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3pcs QF-RD21 5V Power-off Delay Disconnect Relay Module Timer Delay Switch Module

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OPEN-SMART Cortex-M3 STM32F103C8T6 STM32 Development Board On-board SWD Interface Support Programmed with ST-LINK V2

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ST-LINK V2 Programmer Emulator Mini STLINK Downloader for STM8 / STM32 MCU Development Board