Sensors

Pin-type humidity sensor enabling easy replaceability

27th November 2018
Alex Lynn

Specialist in environmental sensing, Sensirion, has presented the new pin-type relative humidity sensor SHT85 for easy replaceability in a wide range of applications. The digital humidity sensor SHT85 is Sensirion's humidity sensor with pin-type connector for easy integration and replacement.

It builds on a highly accurate and long-term stable SHT3x sensor that is at the heart of Sensirion’s new humidity and temperature platform. The unique package design allows for the best possible thermal coupling to the environment and decoupling from potential heat sources on the main board.

The SHT85 features a PTFE membrane dedicated to protect the sensor opening from liquids and dust according to IP67, without affecting the response time of the relative humidity signal. It thus allows for sensor use under harsh environmental conditions, such as high exposure to dust. Final accuracy testing on product level ensures best performance making the SHT85 the perfect choice for demanding applications.

Sensirion’s CMOSens Technology offers a complete sensor system on a single chip, consisting of a capacitive humidity sensor, a bandgap temperature sensor, analog and digital signal processing, A/D converter, calibration data memory, and a digital communication interface supporting I2C fast mode. The sensor covers a humidity measurement range of zero to 100% relative humidity and a temperature measurement range of -40 to +105°C with a typical accuracy of ±1.5% RH and ±0.1°C. The broad supply voltage of 2.15 to 5.5V make the SHT85 perfectly suited to a wide range of applications.

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