This is a 5 VDC mechanic relay module which supports two electrical devices. This module is driven by an optocoupler where it provides an isolation ground between your microcontroller and the relay. If there are any electrical break down (such as power surge or outage), your microcontroller can be saved from the breakdown.
1 x Mechanic Relay module (2 channel, 5V)
Last Updated @ 11/20/2019 9:52:28 AM
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