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HOBO  Weather Station Logger (Make-Onset U.S.A)

Measure temperature, relative humidity, dew point, rainfall, photosynthetically active radiation (PAR), wind speed, and barometric pressure with this customizable weather station. Simply plug in your choice of selected smart sensors (each sold separately) and begin logging. Reconfiguration of sensors is fast and easy. Plug or unplug the selected sensors to alter which parameters will be measured. No calibration or complex wiring is required. The system can accommodate up to 15 sensor inputs and any combination of sensors. Start logging at the push of a button, or set a specific time to begin logging. Seven LEDs provide logging and network status, as well as low-battery and low-memory warnings. The non-volatile EEPROM memory retains data even in the event of battery failure. Collect data using BoxCar® Pro or HOBOware™ Pro software (sold separately). The logger features a weatherproof housing and a hinged door secured by four screws.

Note: All sensor cable lengths combined cannot exceed 100 meters.

*Note: Software is non-returnable if the seal is broken or opened.

Operating range: -40°C to 70°C. Memory: 512K data storage. Number of data channels: maximum of 15. Number of connectors supported: 10, expandable to 15 with optional 2-to-1 smart sensor adapter (sold separately). Logging interval: 1 second to 9 hours, user-specified interval. Time accuracy: 0 to 2 seconds for the first data point and ±3 seconds per week at 25°C. Communication: RS-232 via internal or weatherproof external connector. Offload speed: 2-1/2 minutes for full 512K offload. Mounting: mast or wall mount. Power: 4 AA alkaline batteries (for operating conditions -20°C to 50°C); optional AA lithium batteries available (for operating conditions of -40°C to 70°C). Battery life: one year. Dimensions: 7"W x 9"H x 4"D.

Micro Station Data Logger A smaller, more economical version of the Weather Station Logger. Designed to fit into tight spaces, it is ideal for applications requiring mult-channel monitoring of microclimates in one or more locations. The Micro Station can be configured with up to four plug-in smart sensors (sold separately) for research-grade measurements. Operates up to one year on four ˝AA˝ batteries. Specifications: Same as the Weather Station Logger. Number of Data Channels: 4 smart sensor inputs (maximum 15 parameters).

Rain Gauge The rain gauge is a tipping bucket with a stainless steel shaft with brass bearings and an aluminum housing and collector.Measurement range: 0 to 5" per hour, maximum 4,000 tips per interval. Calibration accuracy: ±1.0% at up to 20mm/hour or up to 1"/hour. Resolution: 0.254mm or 0.01". Drift: requires annual field calibration. Cable length: 2m. Dimensions: 9"H x 6" dia.

PAR Sensor The PAR sensor features anodized aluminum housing with acrylic diffuse and o-ring seal. A light sensor bracket (sold separately) is recommended for use with the PAR sensor. Parameters: average over logging interval, user-defined sampling interval from 1 second. Measurement range: 0 to 2,500 umol/m2/sec, wavelengths 400 to 700 nm. Accuracy: ±5 umol/m2/sec or ±5%, whichever is greater in sunlight. Additional temperature induced error ±0.75 umol/m2/sec/degree C from 25°C. Cosine corrected 0 to 80 degrees; Azimuth error < 2% error at 45 degrees, 360 degree rotation. Resolution: 2.5 umol/m2/sec. Drift: <±2% per year. Cable length: 3m. Dimensions: 1-5/8"H x 1-1/4" dia.

Wind Speed and Direction Sensor The wind speed sensor consists of a 3 cup lexan anemometer with teflon bearings and hardened beryllium shaft. Cross arm is required for the wind speed sensor. Parameters: average wind speed, highest 3 second wind gust, average wind direction (unit vector average). Measurement Range: Wind Speed/Gust - 0-44m/s (0-99mph); Wind Direction - 0-358°. 2° dead band. Accuracy: Wind Speed/Gust - ±0.5 m/s (±1.1mph), ±3% 17-30 m/s (±1.1mph), ±4% 30-47 m/s (67-105mph); Wind Direction - 5°. Resolution: Wind Speed/Gust - 0.19 m/s (0.42mph); Wind Direction - 1.4°. Distance Constant: Wind Speed/Gust - approx. 3m (9.8'); Wind Direction - 0.8m (2.6'). Cable Length: 3m (9.8'). Operating Temperature Range: -40°F to 167°F (-40°C to 75°C).

Barometric Pressure Sensor The barometric pressure sensor must be used inside the logger enclosure for protection from direct exposure to the weather. Parameters: average over logging interval, user-defined sampling interval from 1 second. Measurement range: 600 mb to 1,069.4 mb. Accuracy: ±1.5 mbar over full pressure range at 25°C; additional temperature-induced error of ±2.5 mbar over -10°C to 60°C. Resolution: 0.1 mbar. Drift: typical ±0.6 mb per year, maximum < 2.5 mb per 6 months. Cable length: 10 cm. Dimensions: 1-3/4" x 1-7/8" x 5/8".

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