MQ-9 Sensor Module Carbon Monoxide Detector Carbon Monoxide Alarm Module

Reland Sun

Main chip: MQ-9 gas sensor, LM393. Size: 32mm X20mm X22mm. Input voltage: DC5V ,Power consumption (current): 150mA. DO output: TTL digital quantities 0 and 1 (0.1 and 5V). AO output: 0.1-0.3V (relatively non-polluting), the highest concentration voltage is about 4V., Manufacturer: Reland Sun