Humidity Sensor
A humidity sensor measures the moisture content in the air, critical for pharmaceutical storage, food safety, and cleanroom environments.
What is Humidity Sensor?
A humidity sensor (also called a hygrometer) is a device that measures the amount of water vapour present in the air, expressed as relative humidity (RH) — the percentage of moisture relative to the maximum the air can hold at a given temperature.
In IoT monitoring systems, humidity sensors are typically integrated into temperature and humidity data loggers, providing dual-parameter monitoring from a single device. Common accuracy specifications are ±2% RH for professional-grade sensors.
Why It Matters
Excessive humidity can cause condensation on pharmaceutical products, promote mould growth in food storage, and compromise cleanroom environments. Too little humidity can cause static discharge in electronics manufacturing or desiccation of biological samples. Many regulatory frameworks require both temperature AND humidity monitoring.
Frequently Asked Questions
What is a good humidity level for pharmaceutical storage?
Most pharmaceutical products require storage at 30-65% RH. Specific requirements vary by product — always follow the manufacturer's storage guidelines. Continuous humidity monitoring with IoT sensors ensures these conditions are maintained.
What is the difference between humidity and relative humidity?
Humidity refers to the amount of water vapour in the air. Relative humidity (RH) expresses this as a percentage of the maximum moisture the air can hold at a specific temperature. RH is the standard measurement used in environmental monitoring.
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