The ammonia gas sensor module MMD1002 is developed using a MEMS micro gas sensor, which can be used to detect the NH3 gas level in the air. The module has a high sensitivity to NH3 gas. The module has been aged, debugged, calibrated in factory, and has good consistency and long-term stability.
Fixed and portable testing instruments, smart refrigerators, restroom monitoring, agricultural animal husbandry environment monitoring and other places.
High sensitivity
High resolution
Low power consumption
Long life time
Provides multiple output method such as UART, analog voltage, PWM, etc
High stability
Excellent linear output
| Product number | MMD1002 |
| Detection gas | NH 3 ? ? |
| Interfering gas | H 2 S , ethanol and other gases |
| Measurement range | 0-300ppm |
| Data output | UART output (3V level) |
| Working Voltage | 3.3 V (no polarity protection) |
| Working current | ≤ 20mA? |
| Preheat time | 3-5 minutes |
| Response time | ≤60 seconds |
| Recovery Time | ≤120 seconds |
| Resolution | 2ppm |
| Working temperature | -10-55℃ |
| Working humidity | 15%RH-90%RH (without condensation) |
| storage temperature | -10℃～55℃ |
| Dimensions | 20 × 2 5 × 5 mm (L×W×H) |
| Life time | ≥ 3 years |
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