SB040322025 – SGX-4OX OXYGEN SENSOR SCHEMATIC BLOCK

This schematic block features the SPEC Sensors 110‑407, a compact surface-mount electrochemical ozone sensor designed for real-time air-quality monitoring and environmental sensing. The sensor provides a current output proportional to ozone concentration, which can be converted to a voltage via a transimpedance amplifier. Its low power consumption, fast response, and long-term stability make it ideal for embedded air-quality devices, smart HVAC systems, and portable ozone measurement applications.

Packaged in a small SMD form factor, this breakout-style module exposes the sensor electrodes (working, reference, counter) and provides recommended layout and biasing for low-noise operation. Its factory calibration ensures consistent performance and traceable results across long deployment periods.

The 110‑4xx sensor family is widely used in both consumer and industrial applications due to its reliability, long operating life, and compact footprint.

Key Features:

• SPEC Sensors 110‑407 SMD ozone (O₃) sensor
• Current output proportional to ozone concentration (~–60 ± 10 nA/ppm)
• Fast response: T90 < 15 seconds
• Measurement range: 0–20+ ppm O₃
• Operating temperature: –30 °C to +50 °C
• Operating humidity: 0–100 % RH, non-condensing
• Low power consumption: 10–50 µW depending on front-end design
• Compact SMD footprint for high-density designs
• Factory-calibrated and long-term stable

Typical Applications:

• Indoor and outdoor air-quality monitoring
• Environmental sensing nodes and IoT air sensors
• Smart-home HVAC ozone detection
• Industrial ozone monitoring and sterilization systems
• Portable ozone measurement devices
• Educational and laboratory sensor projects

By integrating this Quickboards schematic block, engineers can prototype ozone detection systems quickly, reduce analog front-end complexity, and leverage a proven, factory-calibrated reference design suitable for real-time environmental monitoring.