New MQ-7 MQ7 Carbon Monoxide CO Gas Sensor Detection Module for arduino

Using high-quality dual-panel design, with power indicator and TTL signal output instructions. The switching signal having a DO (TTL) output and analog output AO.

TTL output valid signal is low. (Low-level signal when the output light can be directly connected to the microcontroller or relay module) Analog output voltage with the higher concentration of higher voltage. There are four screw holes for easy positioning. Has a long life and reliable stability. Rapid response and recovery characteristic.

Specifications:

• Input voltage : DC5V
• Power consumption (current): 150mA
• DO output : TTL digital 0 and 1 (0.1 and 5V)
• AO output : 0.1-0.3V (relative to pollution), the maximum concentration of a voltage of about 4V

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