The ZMOD4450 from Renesas is a refrigeration air quality gas sensor designed to detect gases emitted by food as it ripens or spoils — including ethylene (C₂H₄), trimethylamine (C₃H₉N), and dimethyl sulfide (C₂H₆S). With up to ±10% repeatability, it lets you quantify that funky smell coming from your fridge.

This SparkX Qwiic breakout makes the ZMOD4450 easy to integrate — just plug in a Qwiic cable for solderless I²C connectivity. No voltage regulation or level shifting required.

Key Features

• Refrigeration Air Quality Sensing – Detects ethylene, amines, and volatile sulfur compounds
• ±10% Repeatability – Consistent measurements; ±15% accuracy with additional calibration
• I²C Interface – Standard communication via Qwiic connectors
• Compact Sensor – 3.0 × 3.0 × 0.7 mm MEMS-based MOx sensing element
• Qwiic Compatible – Plug-and-play with any Qwiic-enabled board

Ideal For

• Smart refrigerator monitoring
• Food freshness and spoilage detection
• Air quality research
• IoT food storage projects

Package Contents

• 1× SparkX Refrigeration Gas Sensor - ZMOD4450 (Qwiic) Breakout

Resources

• Renesas ZMOD4450 Product Page & Firmware