Specifications :
Detecting Concentration: 300 to 10000 ppm
Input Voltage: 5 VDC
Power: 150 mA
Digital Output Voltage: TTL digital 0 and 1 (0.1 V and 5 V)
Analog Output Voltage (relatively clean): 0.1 V to 0.3 V
Analog Output Voltage (highest concentration): 4 V