Environment
    Weather Station temperature, humidity, rainfall, and wind speed & direction (Six additional sensor ports)Weather Station temperature, humidity, rainfall, and wind speed & direction (Six additional sensor ports)Weather Station temperature, humidity, rainfall, and wind speed & direction (Six additional sensor ports)Weather Station temperature, humidity, rainfall, and wind speed & direction (Six additional sensor ports)

Weather Station temperature, humidity, rainfall, and wind speed & direction (6 additional sensor ports)


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Use field-specific weather data for timing fungiide applications, nutrient management and field activities.

The fully integrated WatchDog 3540 Wireless Weather Station measures temperature, humidity, rainfall, and wind speed/direction. It records and communicates the data to the cloud using its internal modem or radio.

  • Integrated Solar Power system for reliable power
  • Integrated Modem/Radio for reliable communications: available with a choice of cellular modems or other radios.
  • Integrated Data Logger protects your data, holds over 18 months of data at a 15-minute recording interval and data can be transferred to a USB flash drive
  • Easy to install - start measuring in minutes! Mounts to a 1.25 inch mast, u-bolts included
  • Bluetooth connectivity to your Apple or Android smartphone running the free WatchDog Mobile App speeds setup and displays current conditions - data at your fingertips to better plan your day!
  • Sends data to the SpecConnect Cloud Solution - View current conditions or historical data using a broad selection of analytical reports from anywhere in the world
  • Receive alerts via automated phone call, text message, and/or email immediately when temperature crosses your selected threshold - no waiting for the next scheduled upload
  • Customizable with plug-in sensors to meet your needs
  • Receive the latest changes with over-the-air updates (also available via a USB flash drive)
  • The durable enclosure provides moisture, corrosion, and UV protection for increased reliability in harsh environments
  • Designed and manufactured in the USA to provide quality data you can rely on

Communication Options

  • Cellular:
  • - LTE-M - US/Canada/Mexico
    - LTE-CAT4 - North America

  • WiFi
  • 900MHz Radio
  • Data Logger (No Modem)

WatchDog 3540

Models
3540MUWatchDog 3540 Wireless Weather Station, LTE-M - US/Canada/Mexico
3540WFWatchDog 3540 Wireless Weather Station, WiFi
3540DUWatchDog 3540 Wireless Weather Station Pup, 900MHz
3540DR WatchDog 3540 Weather Station, Data Recorder
3540MEWatchDog 3540 Wireless Weather Station, LTE-M - Global
3540C4WatchDog 3540 Wireless Weather Station. LTE-CAT4 - North America

WatchDog 3240

Models
3240MUWatchDog 3240 Wireless Weather Station - LTE-M Modem
3240WFWatchDog 3240 Wireless Weather Station - Wi-Fi Modem
3240DUWatchDog 3240 Wireless Station Pup - 900Mhz
3240ME WatchDog 3240 Wireless Weather Station - LTE-M Modem (International)
3240DRWatchDog 3240 Weather Station Data Recorder - No Modem
3240C4WatchDog 3240 Wireless Station - LTE CAT-4 Modem
Accessories* for WatchDog 3540 and WatchDog 3240
3000SpecConnect - Initial Set Up Fee
3010USSpecConnect Pro (1 Year) Subscription - Cellular US/Canada

*  The items are required for the product to function properly. They are sold separately.

3540 Weather Station3240 Weather StationRangeAccuracy
Air TemperatureIncluded-40°F to 257°F (-40°C to 125°C)±0.54°F  (-40°F to 194°F)
Relative HumidityIncluded0 to 100%±2% at 77°F (25°C)
RainfallIncluded0.01"(0.254mm) resolution±2% at <2" (5cm)/hour
Wind SpeedIncluded0.1 to 200mph (0.1 to 322km/h)±2mph (±3m/h) ±5%
Wind DirectionIncluded1°- 359°, 1° increments±3°
Light SensorOptional (extemal port)0 to 1500W/m² (0 to 3000μMoL/m²s)±5%
Available External Sensor Ports62
Compatible With WaterScout ProfilerYesNo
External CommunicationCellular, USB, Bluetooth, RS232
External Sensor Ports 1 x 2.5mm stereo jack (0 to 3.0VDC analog input)
Data capacity30,000 data intervals can be stored on the unit before the oldest record is overwritten by the newest data (312 days at 15 minute intervals)
Dimensions (HxLxW)12 x 19.5 x 11.25 in (30.5 x 49.5 x 28.6 cm). (Without 7.25 in (18.4 cm) antenna)
Weight9.9 lbs. (4.5 kg)
Power Source3.5W solar panel, Rechargeable 6V/4.5AH SLA battery, optional AC/DC power adapter
Battery Life 14 days minimum with no solar power
LED3-color (Red, Amber, Green)
Operating Temperature Range-22° to 130°F (-30° to 55°C)