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Principle Introduction
| MEWOI-MIX2111A domestic usage gas alarm module adopts integrated design concept, built-in advanced semiconductor gas sensor, with fault alarm, standby output, alarm output, etc. functions. The module has small size, low power consumption, long life and low cost. It also has extremely high sensitivity to domestic natural gas, LPG and other combustible gases. After aging, debugging, and calibration, it cooperates with highly integrated MCU to perform data processing operations. It greatly reduces the difficulty of developing gas alarms and facilitates rapid development or modular design of alarm products. Users only need to add a power module, LED alarm indicator, buzzer and casing to form a complete household gas alarm. |
Features
* High sensitivity, good stability * Long life, small size * Good stability, low cos |
Application
* Gas alarm for single value * Other gas detect instruments |
Technical Parameters
| Item | Specification |
| Target Gas | CH4, LPG |
| Operating Voltage | 4.8~5.2V DC |
| Operating Current | ＜ 80mA average |
| Preheating Time | 3 – 5 minutes |
| Response Time (T90) | ＜ 20 seconds |
| Recovery Time | ＜ 60 seconds |
| Long Term Sensitivity Drift | ≤1%/year |
| Alarm value | A terminal high level, default value 10.00%LEL |
| Fault alarm output | B terminal high level |
| Operating Conditions | 0～50℃/15～90%RH(no condensation) |
| Storage Conditions | -20～50℃/0～60%RH(no condensation) |
| Size | 24×20×15mm(L×W×H) |
| Weight | ≤ 20g |
| Life Expectancy | ≥10 years |
