Spectrum Technologies 3550DU WatchDog Wireless ET Weather Station (-40°F~257°F, 0~100%, 900Mhz Radio Communication)

Air Temperature

RANGE: -40°F to 257°F (-40°C to 125°C)

ACCURACY: ± 0.54°F (-40°F to 194°F), ± 0.3°C (-40°C to 95°C)

Relative Humidity

RANGE: 0 to 100%

ACCURACY: ± 2% @ 77°F (25°C)

Rainfall

RANGE: 0.01" (0.254mm) resolution

ACCURACY: ± 2% at <2” (5cm)/hour

Wind Speed

RANGE: 0.1 to 200mph (0.1 to 322km/h)

ACCURACY: ± 2mph (± 3km/h) ± 5%

Wind Direction

RANGE: 0°–359°, 1° increments

ACCURACY: ± 3°

Solar Radiation

RANGE: 0 to 1500 W/m²

ACCURACY: ± 5%

External Sensor Ports: 5 × 2.5mm stereo jack (0 to 3.0 VDC analog input)

Operating Temperature: -22°F to 130°F (equivalent to -30°C to 55°C)

External Communication: Cellular, WiFi, Radio, Data Logger

Power Source: 3.5W solar panel, rechargeable 6V/4.5Ah SLA battery

Battery Life: Minimum 14 days without sunlight

Data Capacity: 312 days at 15-minute intervals (approximately 30,000 records)

 Datasheet