NEW breakthrough in UHF RFID Sensing - The longest read range yet - over 20 feet! Watch our video demo here.

Wireless Humidity Sensors

Our humidity sensors can be combined with temperature or other sensors to meet your sensing needs. The most common humidity sensors are digital, capacitive, or resistive. However, every application environment is different and may require a specific type of humidity sensor. We can design a solution to fit your requirements: operating temperature, moisture, accuracy, repeatability, response times, long-term stability, and packaging. Please call us to discuss a custom solution to your sensing challenge.

Questions about Phase IV Engineering's RFID technology? Need a quote for a specialized wireless sensor solution? We're happy to help. Just call or email us.

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Video Demonstrations

Check out our battery-free wireless sensing products and technology video demonstrations featured at the CSIA's 2009 DEMOGala. To view, go to our Technology Demonstrations page.

Battery-Free (Passive) RFID Humidity Sensors

	Ultra-small, mobile, rugged, multi-sensor. Can read humidity (with integrated temperature option) through materials–can be embedded. No battery means no maintenance, long-term monitoring and long life.
	Read Range: 1-inch to several feet, depending on the application.
	Humidity range, accuracy and performance: Sensor and application dependent.
	Form Factor: The extremely miniature form factor of these sensors permits them to be embedded and implemented in widely diverse applications.

Battery-Powered (Active) Humidity Sensors

	Low-power and long-life, long-distance data transmission, multi-sensor, provides continuous monitoring and alerts, wireless battery charging options, low-cost.
	Data Transmission Range: Several feet to over a mile, depending on the application.
	Humidity range, accuracy and performance: Sensor and application dependent.
	Form Factor: A variety of form factors and low-power options enables these sensors to be utilized in many different environments—from industrial processes, utilities, health-care, pharmaceutical, construction, agriculture, chain-supply and many more.

Wireless Humidity Data Logging

	Provides sensor monitoring in-transit, or when the item being monitored is mobile and enclosed.
	Ultra-small, mobile, rugged, multi-sensor, low thermal mass – high sensor sensitivity.
	Wireless communication allows the sensor to be sealed.
	Humidity range, accuracy and performance: Sensor and application dependent.

Hybrid Technology Humidity Sensors

	Combine technologies to create “sign post” sensors. RFID readers at “process gates” transmit location data to a sensor. Upon receiving a location signal, the "sign post" sensor sends a powered, long-range transmission of ID, location, and sensor data (such as humidity and temperature).
	Ultra-small, mobile, rugged, multi-sensor. Wireless communication allows the sensor to be sealed.
	Humidity range, accuracy and performance: Sensor and application dependent.

Energy Harvesting Humidity Sensors

	Get the maintenance-free benefits of “no-battery” replacement and long transmission ranges with energy harvesting sensors.
	Self-powered sensors harvest power from radio waves, solar, vibration, piezo, thermal… depending on the application.