O3 Concentration Detector Board MQ-131 Digital Analog Output Module with 5V Input, PCB Header Interface for Embedded Air Review Platforms

Two Mode Readout: Digital binary output and analog voltage output different reading methods, helping you wire the board into controller input or continuous sampling circuits with less adaptation work Targeted O3 Detection: Built around the MQ-131 head, this module is designed for O3 concentration checks so project builders can add a focused air measurement point to trial or control setups Ready For Module Use: You receive a single O3 detection module with a compact 3.2 x 2.2 x 3.0cm / 1.26 x 0.87 x 1.18inch form factor suited to assemblies that need space-aware detector integration 5V Setup Friendly: The stated 5V operating input and TTL interface give developers a clear starting point for electrical planning when preparing air measurement tasks, lab devices, or equipment integrations Compact Board Structure: The PCB layout combines the detection head, onboard chip, trimmer, and 4-pin header in a small assembly, making placement easier for lab fixtures, cabinets, or embedded builds