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Suitable for UNO simulation TDS sensor, hydraulic conductivity sensor, liquid detection, water quality detection module

XY-DJ01 optocoupler relay module delay power-off disconnection trigger delay cycle timing circuit switch

CN3791 MPPT solar panel solar charger 3.7V 4.2V lithium battery charging board module

CN3791 MPPT solar panel solar charger 3.7V 4.2V lithium battery charging board module

CN3791 MPPT solar panel solar charger 3.7V 4.2V lithium battery charging board module

XH-M127 single key switch module reset button self-locking button switch control board triggers power switch

XH-M127 single key switch module reset button self-locking button switch control board triggers power switch

XH-M127 single key switch module reset button self-locking button switch control board triggers power switch

XH-W1316 Universal Temperature Controller+Acceleration Control 2-channel Relay Output Temperature Controller High and Low Alarm

Potentiometer extension cable lead out dual 6-pin 09 audio amplifier tuning speed control potentiometer lead out module

Potentiometer extension cable lead out dual 6-pin 09 audio amplifier tuning speed control potentiometer lead out module

Potentiometer extension cable lead out dual 6-pin 09 audio amplifier tuning speed control potentiometer lead out module