Sensors — Airflow Sensors Function: Detect and monitor airflow presence and changes in ducts, housings, or small vents. Designed for straightforward, low-cost sensing tasks where a lightweight sensor is preferred. Key benefit: Provides a simple way to confirm airflow or flow direction without complex electronics — ideal for routine checks, temporary installations, or disposable applications. Material: Paper — lightweight, low-profile construction that makes the sensor easy to position and replace when needed. Weight: Item weight 0.11 lb — compact and portable for field work, lab use, or integration into lightweight assemblies. Compatibility: Intended for use with systems and setups that accept paper-based airflow sensors or require a simple airflow indicator. Works well as a component in experimental rigs, HVAC test fixtures, or prototype assemblies that accommodate this form factor. Performance note: Suited for qualitative or semi-quantitative airflow detection (presence, relative direction, and general magnitude). Best where robustness and precision-grade instrumentation are not required. Practical applications HVAC troubleshooting: Quickly verify whether air is flowing in a vent, duct, or grille during maintenance or leak checks. Laboratory and classroom use: Use as a simple, disposable sensor in airflow demonstrations, experiments, or student projects where easy setup and replacement are valuable. Prototyping and lightweight assemblies: Integrate into product prototypes or temporary fixtures that need a compact airflow indicator without adding significant weight. What to expect Easy handling and placement due to the paper construction and low weight (0.11 lb). A cost-effective solution when you need a straightforward airflow sensor rather than precision instrumentation. Replaceable and disposable form factor for applications where contamination, wear, or single-use is a factor. Notes and limitations Material is paper; not intended for long-term exposure to moisture, corrosive environments, or heavy mechanical stress. For precision flow measurement, calibration, or high-temperature / high-humidity environments, consider dedicated electronic airflow sensors designed for those conditions.