1 channel 5V 10A Relay Control Board Module with Optocoupler DIY Mini Battery Powered 4 Wheel Drive Car The theoretical 300-meter line-of-sight range

The theoretical 300-meter line-of-sight range reduces significantly in real buildings due to wall attenuation and RF interference

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1 channel 5V 10A Relay Control Board Module with Optocoupler DIY Mini Battery Powered 4 Wheel Drive Car The theoretical 300-meter line-of-sight range1 channel 5V 10A Relay Control Board Module with Optocoupler 1 channel 5V 10A Relay Control Board Module with Optocoupler This 1 channel 5V 10A relay control board module with optocoupler modules is compliant with international safety standards, control and load areas isolation trenches it has a single relay a genuine. The inputs of 5V 1 Channel Relay 10A Relay Module are isolated to protect any delicate control circuitry. The power supply and relay