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Product Name: KEYES Light interrupt module for arduino

Operating Voltage: DC 3-5V 
Second, characteristics: 
1, single-channel signal output; 
2, with mounting holes for easy fixed installation; 
3, the output switch circuit board can be connected directly to the microcontroller IO port

Operating Voltage: DC 3-5V

Second, characteristics:

1, single-channel signal output;

2, with mounting holes for easy fixed installation;

3, the output switch circuit board can be connected directly to the microcontroller IO port