UEB 12V One 1 Channel Relay Module Optocouple Board Shield For PIC AVR DSP ARM

Amazon.com Price:  $3.55 (as of 02/06/2019 13:58 PST- Details)

With isolation groove in control area and load area; With a permanent open and close vents contact
With power and relay action indication, bright when connect and go off when disconnects
It can be not only used as a microcontroller development board module, but also as a home appliance control

Usually ships in 1-2 business days

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