1.Using high-quality dual-panel design, with power indicator and TTL signal output instructions.

2.The switching signal having a DO (TTL) output and analog output AO.

3.TTL output valid signal is low . ( Low-level signal when the output light can be directly connected to the microcontroller or relay module ).

4.Analog output voltage with the higher concentration of higher voltage.

5.Has a long life and reliable stability.

6.Rapid response and recovery characteristics.

7.Product dimensions: 32 x 20 x 15 (L x W x H).

8.Chip: LM393, ZYMQ-2 gas sensors.

9.Working voltage: DC 5V.

10.Detection of gas: combustible gases, fumes.

11.Detectable concentration: 300-10000ppm (flammable gas).