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1PCS Photodiode plus relay module light control switch light detection 5V 12V#YT

1PC NEW Fire detection Flame sensor plus relay module infrared reception #YT

1PCS 1 way 5V infrared remote control relay module learning infrared switch #YT

1PCS Flame sensor module Relay module 2-in-1 flame detection fire alarm #ZJ

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1PCS DC3-12V rain module Water leakage alarm sensor Snow droplets detection #YT

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