Model: MQ-5 - With the signal output instructions - Dual output (analog output and TTL-level output) - TTL output valid signal is low (Low signal when the output light can be directly connected to the microcontroller) - Analog Output: 0~5V the higher the concentration the higher the voltage. - High sensitive with liquefied petroleum gas methane coalgas - Heater voltage: 5 +/- 0.2V (AC / DC) - Working current: 150mA - Loop voltage: - Load resistance: 1K ohms (adjustable) - Detection concentration range: 300~5000ppm - Clean air voltage: - Sensitivity: >/= 3% - Response time: - Recovery time: - Element power consumption: - Working temperature: +10'C~50'C - Working humidity: 95%RH (nominal humidity 65%)