MQ-4 natural gas methane Sensor Detection MQ4 Board Modul for Arduino

Features
1. Signal output indicator;
2. Dual Signals output (analog output and TTL output);
3. TTL output signal is low level, allows to connect with SCM directly;
4. Analog output 0~5V voltage;
5. High sensitivity;
6. Long working lifetime and stable performance;
7. Quick response and recovery

Specification
Chipset: LM393 / MQ-4 sensor;
Working voltage: DC 3~5V;
Detecting range: 300~10000ppm
Application Suitable for home / industry gas and methane detection using
Packing List 1 x Gas methane sensor module