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Gain Adjustment Potentiometer
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When the door is closed the two pieces should be in close contact of each other
electronic security systems
USB to RS-485 Converter protection circuitsu GPRS GSM Module Gain Adjustment PotentiometerIntroduction : Industrial grade RS485 to USB converter which can withstand tough working enviroment. The housing is made of hardened ABS plastic with a reinforced terminal header for easy connection of communication wires. This RS485 to USB converter is electrically protected against static electricity, high voltage spikes and other dangerous voltage spikes which can damage your equipment or data signaling. This protection is accomplished by four
US$ 174.50
US$ 119.50
US$ 79.90
