The The MMD1008T gas sensor module uses a metal oxide semiconductor sensor. When a trace amount of alkane gas reach sensor surface, the conductivity of the sensing material will increase. The change in conductivity related with gas concentration. Through the magnitude of the change in conductivity, the sensor can sense the degree of gas leakage in the air. For example, when indoor leaking gas molecules contact the sensor, the sensor can produce a conductivity change. Using this sensitive characteristic of the sensor, and then through a simple single-chip microcomputer and firmware control, the alarm device can be intelligently started, and the exhaust ventilation equipment can be started at the same time.
Safety monitoring for those vehicle using natural gas as power
Indoor flammable gas leakage detection
Ventilation control system
Industrial methane, natural gas detection
Portable gas leak tester
Household gas alarm and automatic alarm control system, etc
Low power consumption
long life time
Low cost
Small size
Simple application circuit
High sensitivity to alkane gases
| Product Number | MMD1008T | |||
| Sensor Model | SMT-014 | |||
| Target Gas | Natural gas, liquidfied petrolem gas(LPG), Butane gas and other alkane gases | |||
| Data Communication | Interface Connector | XH2.54-4 Vertical terminals | ||
| Output Data | TTL High/Low level/UART (5V level) | |||
| Input Voltage | 5.0±0.2VDC (no polarity protection) | |||
| `Module Operation Condition | Working Current | ≤ 100 mA | Response Time | ≤20 seconds |
| Preheat Time | 120 seconds | R2 load resistor | 10 -100KΩ | |
| Measurement Range | 0-10000ppm methane | |||
| Test Environmental Parameter | Working Temperature | 0-50℃ | Storage Temperature | -20℃- 60℃ |
| Working Humidity | ≤95%RH | Storage Humidity | ≤ 60%RH | |
| Appearance Parameter | Module weight | About 20g | Dimension | 24×20×15mm (L×W×H) |
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