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:

• Sensor Type Semiconductor
• Power requirements: VCC – 5V±0.1
• DO output: TTL digital 0 and 1 (0.1 and 5V)
• AO output: 0.1-0 .3 V (relative to pollution), the maximum concentration of a voltage of about 4V
• Detection Gas: Natural gas/Methane
• Detection Concentration: 200-10000ppm (Natural gas / Methane)
• Interface: 1 TTL compatible input (HSW), 1 TTL compatible output (ALR)
• Heater consumption: less than 750mw
• Operating temperature: 14 to 122 °F (-10 to 50°C)
• RH Related humidity less than 95%Rh
• O2 Oxygen concentration is 21% (standard condition) – Oxygen concentration can affect sensitivity
• Load resistance: 20KΩ
• Sensing Resistance Rs: 10KΩ- 60KΩ (1000ppm CH₄)
• Preheat time:Over 24 hour
• Standard Encapsulation Bakelite, Metal cap

Specifications:

1. Power supply needs: 5V
2. Interface type: Analog, Digital
3. High sensitivity to Hydrogen (H2)
4. Small sensitivity to alcohol, LPG,cooking fumes
5. Stable and long life
6. Size: 32x20mm
7. Circuit voltage: 5V±0.1
8. Heating voltage: 5V±0.1
9. Load resistance: 10KΩ
10. Heater resistance: 31±5%
11. Heating consumption: less than800mW
12. Using Temperature: -10°C-50°C
13. Storage Temperature: -20°C-70°C
14. Related humidity: less than 95%Rh
15. Oxygen concentration: 21%(standard condition)Oxygen concentration can affect sensitivity

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.