Goes well with this
| Price | $3 |
|---|---|
| Category | Sensors |
| Availability | In stock |
| Delivery | Shipped across Lebanon, or collect from the lab |
An MQ-4 tuned for methane and natural gas on the standard blue 4-pin module. It covers 300 to 10000 ppm of CH4 and is deliberately built to shrug off alcohol vapour, which makes it a better kitchen or boiler-room leak detector than a general-purpose MQ sensor. A0 gives the concentration trend, D0 trips an alarm at the level you set on the trim pot. The 5V heater runs warm.
Key features
- 300 to 10000 ppm methane / natural gas (CNG)
- Deliberately insensitive to alcohol vapour
- Analog A0 plus threshold digital D0 with trim pot
- 5V heater, up to about 950 mW - runs warm
- Rated 10-year sensing element life
- For gas-leak alarms in kitchens, boilers and workshops
Details
Specifications
| Model | MQ-4 |
|---|---|
| Type | Tin-oxide (SnO2) semiconductor gas sensor on a breakout module |
| Detects | Methane (CH4) / natural gas |
| Detection range | 300 to 10000 ppm |
| Heater voltage | 5.0V plus or minus 0.1V |
| Heater resistance | 26 ohms plus or minus 3 ohms |
| Heater consumption | less than 950 mW |
| Sensitivity | Rs(air) / Rs(5000 ppm CH4) greater than or equal to 5 |
| Output | Analog (A0) + digital threshold (D0, LM393 + trim pot) |
| Operating voltage | 5V DC |
| Preheat | 48 h for calibrated readings |
| Lifespan | ~10 years |
