This is the CO2 carbon dioxide sesor module that has three outputs: analog output, digital TTL output, and temperature compensation output.
Features:
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Size: 32mm x 22mm x 30 mm
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Chipset" LM393 amd CO2 sensor
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Working voltage: 6V DC.
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Digital output: active low. When it outputs low level signal, the LED will turn on.
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Analog output: two optional ranges 0-2V or 0-4V. The default is 0-2V/
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Detection Range: 0-10000ppm.
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