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WeatherHawk Inversion Wireless 916 MHz System - 21750
Item #:
WH-21750
Brand:
WeatherHawk
Share this product:
21750 Inversion Wireless 916 MHz System by WeatherHawk
The WeatherHawk Inversion system continuously measures temperature and wind to detect suitable conditions for mosquito abatement. This information enables abatement district managers to efficiently deploy resources.
Benefits:
- Labor and chemical savings reduce costs
- Realtime data eliminates guesswork
- 24/7 monitoring of environmental conditions
- Inversion detection for airquality alerts
- Portability for microclimate monitoring
- SMS alert message capability to one or more cell phones
Product Details
Electronics:
A rugged datalogger logs the measurements and sends the data to the base computer using either a serial cable or an optional spreadspectrum radio.The radio option provides wireless capability up to a half mile, line of sight (LOS).
Sensors:
Temperature sensors are installed at 3 ft and 30 ft for detecting temperature inversions.A relative humidity sensor is included with the lower temperature sensor. Wind speed and direction sensors are installed on a crossarm at 9 ft. Sensor cables are color coded for easy assembly.
Power:
The station runs on AC power or an optional solar panel can provide longterm, remote monitoring.
Mounting Hardware:
The electronics enclosure and sensors are mounted to a 30 ft guyed mast. Guy wires attached to ground anchors allow the mast to withstand wind speeds up to 85 mph. An optional 30 ft tower is also available for permanent installations.
Software:
Easytouse software is both Mac and PC compatible. The software measures, displays, and logs data in real time. When a temperature inversion occurs, the software also provides visual and sms alerts.
Temperature Range | -40 to +158° F (140 to +70° C) |
Data Storage | 128 kbytes of nonvolatile Flash RAM (~32,000 data points) |
Power Requirements | 16 to 22 Vdc |
Radio Type | Spread Spectrum |
Frequencies | 916 MHz (WeatherHawk 916 Inversion) |
Wireless Radio – Campbell Scientific RF401 | |
Radio Type | Spread Spectrum |
Frequencies | 916 MHz (WeatherHawk Inversion 916) |
I/O Data Rate | 9600 baud |
Average Current Drain | 10 mA |
Power Supply | |
Battery | Integrated, 2.9 Ahr lead acid |
(Optional Battery Chargers) AC Converter |
Wall adapter, 18 V |
Solar Panel | 5 W |
Antenna (Wireless Systems Only) | |
Description | Omnidirectional, 1/4 wave, whip (fully enclosed in weatherproof housing) |
Gain | 0 dBd |
Transmission Range | 1/2 mile (0.8 km) line of sight |
Air Temperature (30 ft) | |
Sensor | Thermistor |
Operating Range | -58° to +158°F (-50 to +70°C) |
Accuracy | ±1°F at -58° to +158°F (±0.6°C at -50 to +70°C) |
Air Temperature (3 ft) | |
Sensor | Platinum Resistance Thermometer |
Operating Range | -13° to +140°F (-25 to +60°C) |
Accuracy | ±1°F at -13°F (±0.6°C at -25°C) ±0.9°F at 32° F (±0.5°C at 0°C) ±1.8°F at 140°F (±0.8°C at +60°C) |
Relative Humidity | |
Sensor | Capacitive |
Accuracy at 68°F | ±3% RH (0 to 90% RH) ±5% RH (90 to 98% RH) |
Wind Direction | |
Sensor | Vane |
Range | 360° mechanical, 352° electrical |
Linearity | 1% |
Sensitivity | ~1m s-1 (2.2 mph) |
Wind Speed | |
Sensor | Cup anemometer |
Starting Threshold | 0.78 m s-1 (1.75 mph) |
Weight | 66 lbs (30 kg) |
Length | 30 ft (9.2 m) consists of five 6-ft. (1.82 m) sections |
Main Mast Diameter | 1.9" (48.26 mm) |
Top Section Mast Diameter | 1.74" (44.2 mm) |
Base Radius | 20 ft (6 m) to each of three guy points, 120 degrees apart |
Guy Configuration | three guy cable at two levels guyed at 12 ft (3.6m) and at 24 ft. (7.2m) |
Recommended Guy Wire Pretension | 100 lbs each |
Maximum Weight of Mounted Equipment | 75 lbs (34 kg) |
Maximum Allowable Wind Gust | 85 mph (136 km/hr) |