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MQ9 Gas Sensor datasheet
Capacity: 3000mAh
The device delivers fast switching performance with low power consumption
4mm inner diameter / 6
Internally
RS-232 to TTL Converter (Industrial Standard) hc151 MQ9 Gas Sensor datasheetRS 232 to TTL converter (UT 210) converts data (TXD, RXD) of RS 232 to TTL signal. The TTL electrical level is 5V, without external power supply. It adopts unique "RS 232 charge pump" technology to drive the system and gains power without initializing the RS 232 serial port. The RS 232 to TTL converter has an automatic transmission and reception conversion with no delay. It has a unique I O circuit auto control data flow direction. With these, you