1. Introduction

The M1002 ammonia gas sensor module is an ammonia gas module developed using  a MEMS micro gas sensor that can be used to detect the NH3 gas content in the air.

 The module has a high sensitivity to NH3 gas. The module is aging, commissioned,  calibrated, and calibrated for good consistency and long-term stability.

2. Main Feature High sensitivity, high resolution, low power consumption, long life, multiple output  modes such as UART, analog voltage signal, PWM waveform, high stability, excellent  linear output.

3. Application Fixed and portable detection instruments, smart refrigerators, monitoring of public  toilets, environmental monitoring of agricultural and livestock breeding and other  places.

4. Technical indicators

4.1 Size and Pin definition

4.2 Pin definition