ITEM NAME:MQ136 DIY Electronics Gas Sensor Module LPG Butane Hydrogen Detector Board Product Description Description: MQ136 DC 5V Smoke Gas Sensor Module LPG Butane Hydrogen Detector Board for DIY Electronics Feature: 1. With signal output indication. 2. Dual signal output (analog output and TTL level output). 3. TTL output effective signal is low level (The signal light is on when the output is low level, and it can be directly connected to the microcontroller) 4. The analog output voltage is 0~5V, the higher the concentration, the higher the voltage. 5. Good sensitivity to hydrogen sulfide, liquefied petroleum gas, natural gas, city gas and smog. 6. Long service life and reliable stability. 7. Fast response and recovery characteristics. Specification: Main Chip: LM393, ZYMQ-135 Gas Sensor Working Voltage: DC 5V Module Size: 32 X 27 X 22mm/1.26 X 1.06 X 0.87" Application: Suitable for gas leakage monitoring devices in homes or factories, suitable for monitoring devices for liquefied gas, butane, propane, methane, alcohol, hydrogen, smoke, etc. Occasions: MCU Learning, Electronic Competition, Product Development, Graduation Design. Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement. Included: 1 XÂ Gas Sensor Module.Good sensitivity to hydrogen sulfide, liquefied petroleum gas, natural gas, city gas and smog. Included: 1 X Gas Sensor Module. Main Chip: LM393, ZYMQ-135 Gas Sensor. Module Size: 32 X 27 X 22mm/1.26 X 1.06 X 0.87".