Description
- Size: 35 mm X wide 22 mm 
- The main chip: LM393, MQ-5 gas sensor 
- Working voltage: dc 5 v 
Features:
- Has the signal output instructions. 
- Double road signal output (simulated output and TTL level output) 
- TTL output effective signal for low level. (when output low electricity at ordinary times, can be directly light signal by SCM) 
- Analog output 0 ~ 5 V voltage, the higher concentration the higher the voltage. 
- They are used in gas leakage detecting equipments in family and industry, are suitable for detecting of LPG, natural gas , town gas, avoid the noise of alcohol and cooking fumes and cigarette smoke. 
- Has long use life and reliable stability 
- Fast response characteristics of recovery