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Carbon Monoxide CO Combustible Gas Sensor Alarm Module (Works with Official Arduino Boards)
Features - For home or factory gas leakage monitoring devices£¬ suitable for carbon monoxide and other combustible gases and monitoring devices - High-quality£¬ dual-panel design£¬ with power indicator and TTL signal output instructions; - DO switching signal(TTL) output and AO analog signal output - TTL output valid signal is low. (When the output low signal light is on£¬ it can be directly connected microcontroller or relay module) - Analog output voltage:the higher the concentration£¬the higher the voltage - Have better sensitivity to carbon monoxide detector - Four screw holes£¬easy positioning - Product Dimensions: 32 (L) x 20 (W) x 22 (H) - Long life and stability - Quick response and resume Electrical performance - Input voltage: DC5V - Power (current): 150mA - DO output: TTL digital 0 and 1 (0.1 and 5V) - AO Output: 0.1~0.3V (relatively clean)£¬ the highest concentration voltage is about 4V - Special note: When the sensor is powered£¬ it needs to be warmed up about 20S£¬ so the measured data becomes stable£¬ the heat sensor is a normal phenomenon£¬ because its inside is with an electric wire£¬ if not£¬ unnomal.