Specifications:

1. Wide detecting scope
2. Fast response and High sensitivity
3. Stable and long life
4. Operating Voltage is +5V
5. Detect/Measure NH3, NOx, alcohol, Benzene, smoke, CO2, etc.
6. Analog output voltage: 0V to 5V
7. Digital output voltage: 0V or 5V (TTL Logic)
8. Preheat duration 20 seconds
9. Can be used as a Digital or analog sensor
10. The Sensitivity of Digital pin can be varied using the potentiometer

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

Specifications:

1. • Input voltage: DC 5V
   • Power: 150mA
   • DO output: TTL digital 0 and 1 (0.1 and 5V)
   • AO output: 0.1-0.3V (relatively clean), the highest concentration voltage is about 4V.
   • Suitable for home or factory gas leakage monitoring devices.
   • Have better sensitivity to Carbon Monoxide, Methane and LPG Gas.
   • High quality dual-panel design, with power indicator and TTL signal output instructions.
   • DO switching signal (TTL) output and AO analog signal output.
   • TTL output valid signal is low. (When the output low signal is on, it can be directly connected micro-controller or relay module.)
   • Analog output voltage: the higher concentration, the higher voltage.