Evapotranspiration (ET) Data Loggers and Sensors

 

Calculated Evapotranspiration

HOBOlink provides Reference ET (ETo) for a short canopy, calculated with the Penman-Monteith equation, as recommended by the Food and Agriculture Organization (FAO) and the American Society of Civil Engineers (ASCE).

Evapotranspiration Info Graphic

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  • RXMOD-RXW-xxx

    The HOBOnet Wireless Manager module is installed in an RX3000 station. Data is transmitted wirelessly from sensors across the network to the RX3000 station and then uploaded to HOBOlink, Onset’s innovative cloud-based software platform.

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  • RXW-THC-xxx

    The HOBOnet Wireless Temperature and Relative Humidity Sensor provides a cost-effective and scalable solution for web-enabled monitoring of air temperature and humidity. HOBOnet Wireless Sensors communicate data directly to the RX3000 weather station or pass data through other wireless sensors back to the central station. They are preconfigured and ready to deploy, and data is accessed through HOBOlink, Onset’s innovative cloud-based software platform.

     

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  • RXW-WCF-xxx

    The HOBOnet Wireless Wind Speed and Direction Sensor records wind speed, wind gust, and wind direction. HOBOnet Wireless Sensors communicate data directly to the RX3000 weather station or pass data through other wireless sensors back to the central station. They are preconfigured and ready to deploy, and data is accessed through HOBOlink, Onset’s innovative cloud-based software platform.

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  • RXW-LIB-xxx

    The HOBOnet Wireless Solar Radiation (Silicon Pyranometer) Sensor is calibrated to measure light intensity for frequencies relevant for solar radiation. HOBOnet Wireless Sensors communicate data directly to the RX3000 weather station or pass data through other wireless sensors back to the central station. They are preconfigured and ready to deploy, and data is accessed through HOBOlink, Onset’s innovative cloud-based software platform.

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  • RX3000

    The HOBO RX3000 is Onset’s next-generation remote data logging station that provides instant access to site-specific environmental data anywhere, anytime via the internet. The new station combines the flexibility and sensor quality of more expensive systems, an onboard LCD display, and the convenience of plug-and-play operation. The RX3000 has three configurable systems, that can be configured below, that consist of the following part numbers: RX3001-00-01, RX3002-00-01, and RX3003-00-01.

  • S-LIB-M003

    Effectively measure light levels with this silicon pyranometer sensor. The Solar Radiation Smart Sensor enables rapid deployment. Since HOBO data loggers recognize this sensor, no complicated programming or setup is required. This product offers a measurement range of 0 to 1280 W/m2 over a spectral range of 300 to 1100 nm. A measurement averaging mode is available. 

    Also available in a wireless model for use with the HOBOnet Field Monitoring System.

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  • S-THB-M002

    The 12-bit Temperature/Relative Humidity Smart Sensor is designed to work with all Onset data loggers that accept Smart Sensors. All sensor parameters are stored inside the Smart Sensor, which automatically communicates configuration data information to the logger without any programming, calibration, or extensive user setup.

    Also available in a wireless model for use with the HOBOnet Field Monitoring System.

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  • S-WCF-M003

    Davis® Wind Speed/Direction Smart Sensors are compatible with all HOBO weather station loggers, HOBOware, and HOBOlink. They offer the same ease-of-use as existing Onset Smart Sensors, providing cost-effective HOBO weather stations for projects on a tight budget.  The sensors feature a plug-in modular connector for easy installation, and all configuration parameters are stored in the sensor and automatically communicated to the logger, eliminating the need for programming or extensive setup.

    • Designed to meet World Meteorological Organization (WMO) guidelines

    Also available in a wireless model for use with the HOBOnet Field Monitoring System.

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  • S-WCG-M003

    The Ultrasonic Wind Speed and Direction Smart Sensor is compact and rugged with no moving parts. Because this sensor is ultrasonic it is able to measure very low wind speeds, down to 0.4 m/s (compared to 1.0 m/s for our mechanical sensors). As with all Onset smart sensors, this sensor is plug-and-play with HOBO stations (RX3000, USB Micro Station, H22, and the U30-NRC). Because it is automatically recognized by HOBO stations, there is no need for programming, resulting in fast and easy deployment. The sensor is powered by its own built-in solar panel.

    Also available is a wireless wind sensor for use with the HOBOnet Field Monitoring System.

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  • S-WSET-B

    The Wind Sensor Set includes Onset's research-grade plug-and-play Wind Speed Smart Sensor and the Wind Direction Smart Sensor. This combination provides average wind speed, highest 3-second wind gust, and average wind direction for the measurement interval. These durable sensors will provide many years of accurate and reliable performance.

    NOTE: Mount these on the M-CAA Full Cross Arm for proper sensor spacing for accurate wind measurement in all wind directions.

    The cross arm must be mounted on a stable mast, using guy wires as needed to prevent the sensors from vibrating in high winds.

    Also available in a wireless model for use with the HOBOnet Field Monitoring System.

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  • S-THB-M008

    The 12-bit Temperature/Relative Humidity Smart Sensor is designed to work with all Onset data loggers that accept Smart Sensors. All sensor parameters are stored inside the Smart Sensor, which automatically communicates configuration data information to the logger without any programming, calibration, or extensive user setup.

    Also available in a wireless model for use with the HOBOnet Field Monitoring System.

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  • S-WSB-M003

    Measure wind speed from 0 to 76 m/s (0 to 170 mph). This smart sensor provides data reporting average wind speed and highest 3 second gust for each logging interval. The starting threshold is 1 m/s (2.2 mph); sensor survives through 170 mph. This model comes with a 3m cable.

    NOTE: an M-CAA Full Cross Arm or a M-CAB Half Cross Arm is required for mounting.

    Also available in a wireless model for use with the HOBOnet Field Monitoring System

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