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Don't touch the nozzle and the glue liquid when the gun is working
Certificates: CE
Tip and ground potential :<2mV
Single start 2mm per turn
Fc-33 10mm Arduino Rpm Sensor Rotational Speed Measuring Sensor moisture grain sensor Don't touch the nozzle andCorrelation photoelectric Infrared count sensor module is a high quality infrared Counter module at a very cheap price which comes with tiny size and integrated LM 393 chipApplications: Widely used in motor speed detection, pulse count, the position limit, etc. Features: Using imported groove optical coupling sensor, width 5mm. It have the output state light, if output high level, the lights are off. if output low level ,it on. If it covered,it will
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