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5V 2 Channel Relay Module Shield

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Module Parameters: 
1 Dimensions: 50.5mm (length) * 38.5mm
(W) * 18.5 (H) 
2 Weight:. 31g 
3.PCB Color: Black 
4 board four weeks with four screws holes,
hole diameter 3.1mm, easy to install and fixed 
5 relay of high quality loose music relays SPDT.
A common terminal, a normally open, one
normally closed terminal 
6 optocoupler isolation, good anti-jamming 
7 low pull, high release. Energisation status
indicator light, release status LED is off 
8.VCC of system power, JD_VCC relay power.
You can plug in jumpers 

Please be aware that due to your computer monitor display the color may have some difference between the picture and the physical item

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