ES-A150 RS485 Air Temperature Relative Humidity Atmospheric Pressure Sensors

ES-A150 Air Temperature Relative Humidity Atmospheric Pressure Sensors is an integrated sensor designed to measure three parameters—air temperature, humidity, and atmospheric pressure. It utilizes imported, highly integrated chips for temperature, humidity, and barometric pressure, featuring full-range calibration and digital output. The temperature and humidity sensing chip employs patented CMOSens® technology—incorporating a capacitive polymer humidity sensor and a band-gap temperature sensor—to ensure exceptional reliability and long-term stability. This sensor is widely used in sectors such as agriculture, forestry, and meteorology, as well as in climate chambers; an optional radiation shield is available for outdoor monitoring applications.

Working principle

This air temperature and humidity sensor utilizes the imported SHT11 chip and the MS5540C sensor module. The module integrates a temperature sensing element, a humidity sensing element, a piezoresistive pressure sensing element, and an ADC interface IC; it is characterized by a wide measurement range and strong electrostatic protection capabilities. It converts changes in environmental parameters into digital output based on the MODBUS protocol.

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