Tidak perlu menanyakan stok ready atau tidak, selama masih tampil berarti ready. Thx. Part No : SEN-0013 Description 1. With a signal output instruction. 2. Dual signal output (analog output, and TTL level output) 3. TTL output 4. 0~5V analog output voltage, the higher the concentration the higher the voltage. 5. LPG gas, natural gas, city gas, smoke better sensitivity. 6. With a long service life and reliable stability 7. Rapid response and recovery characteristics Specs 1. size: 32mmX2 2. Chip: LM393, ZYMQ-2 gas sensors 3. Working voltage: DC 5V PAKET : 1X MQ-2 MQ2 LPG BUTANE METHANE GAS SMOKE SENSOR MODULE FOR ARDUINO