Features:

• High-quality dual panel design, with power and TTL output signal indication.
• DO (TTL) signal output and AO analog signal output.
• TTL output signal for low level.
• Analog voltage output with concentration, where higher concentration leads to higher voltage.
• Better sensitivity to LPG, natural gas, urban gas, and smoke.
• Long lifespan and reliable stability.
• Fast response and recovery characteristics.

Specifications:

• Input voltage: DC5V
• Power consumption (current): 150 mA
• DO output: TTL digital signal 1 and 0 (0.1 and 5 V)
• AO output: 0.1-0.3 V (no pollution)
• Maximum voltage concentration: Approximately 4 V
• Alcohol detection range: 10 ~ 1000 PPM

Connection method:

• VCC: Positive (5 V)
• GND: Connect to negative power supply
• DO: TTL switch signal output
• AO: Analog signal output