Spectrum Technologies 3550DR Watchdog Wireless ET Weather Station (-40°F ~ 257°F , 0 ~ 100%, Data Recorder (No Modem))

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)

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: 1 × 2.5mm Stereo Jack (0 to 3.0 VDC Analog Input)

Operating Temperature: -22°F to 130°F (-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: 14 Days Minimum Without Solar Power

Data Capacity: 312 Days at 15 Minute Intervals (30,000 Records)

Datasheet