5V 12V 1 Way Relay Module with Optocoupler Isolation Relay Board Suitable for 3.3V 5V 12V Signal Control MCU IO Switch

5V 12V 1 Way Relay Module with Optocoupler Isolation Relay Board Suitable for 3.3V 5V 12V Signal Control MCU IO Switch
thumb
thumb
thumb
thumb
thumb
thumb
sku: 1005006186571873
$3.50-3%
$3.40
Shipping from: China
   Price history chart & currency exchange rate