Low Level Trigger Relay Board 12V 16 Channel Relay Module with Optocoupler Protection Low Level Trigger

【OPTOCOUPLER The 16 Channel Relay Module has contact capacity of 10A 250 V, with optocoupler protection, which can support all MCU drivers, and this Relay Module can be a great helper to your work. 【GREAT ANTI-INTERFERENCE】: The on-board power module does not require an external power supply, and the port controller I / O is active at low level trigger, with excellent industry optocoupler isolation anti-interference stability. PRINCIPLE】: When the relay is not closed, the common terminal of the relay is connected to the normally closed terminal, and the load does not work when the load is out of power. When the relay is closed, the common terminal of the relay is connected to the normally open terminal, and the load works with electricity. 【HIGH QUALITY MATERIAL】: This 16 Channel Relay Module has taken the material of plastic shell and electronic components, which is brand new and has high quality assurance, and we hope this Relay Module will meet your basic need. 【WIDELY USED MODULE】: This 16 Channel Relay Module can be widely used as MCU development board module for appliance control, and extended output, etc, you don’t have to worry about the working performance of this Relay Module, which is an ideal choice for you.