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digital output Gas Sensor MQ135 gas sensor with UART analog output
20uA when disabled (power and low batt LED are off)
and repeatable positioning projects
sound level demos
The size is compact to make it easy to carry it out
RFID Card 125kHz EM4100 10pcs - Compatible Tags wav player digital output Gas Sensor MQ135This is a proximity identification token of 125Khz, EM4100. You can use it with the 125K RFID reader module, often used for electronic locks or customer identification. SPECIFICATION Frequency: 125K Dimension: 85. 5mm x 54mm x 1mm
US$ 64.99
US$ 34.99
US$ 40.00
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