Spectrum WatchDog 3240 Wireless Weather Stations
Features
- Integrated solar power system for reliable power
- Optional Wi-Fi or cellular modem for wireless communications
- Integrated data logger holds 18 months of data at a 15-minute recording interval
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The fully integrated WatchDog 3240 Wireless Weather Station measures temperature, humidity, rainfall, and wind speed & direction, recording and communicating the data to the cloud using its internal modem or radio.
Benefits
- 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. Data can be transferred to a USB flash drive.
- Easy to install - be running 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.
- 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).
- Durable enclosure provides moisture, corrosion, and UV protection for increased reliability in harsh environments.
- Designed and manufactured in the USA to provide the quality data you can rely on.
- External Communication: Cellular, USB, Bluetooth, RS232
- External Sensor Ports: 1 x 2.5mm stereo jack (0 to 3.0VDC analog input)
- Data Capacity: 30,000 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)
- Weight: 9.9 lbs. (4.5 kg)
- Power Source: 3.5W solar panel, Rechargeable 6V/4.5AH SLA battery, optional AC/DC power adapter.
- Battery Life: 14 days minimum with no solar power.
- LED: 3-color (Red, Amber, Green)
- Operating Temperature Range: -22° to 130°F (-30° to 55°C)
In The News
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According to the Texas Water Development Board (TWDB), evaporation rates in Texas were previously based on data collected from a sparse network of Class A evaporation stations, dating back to the 1960s. These pans were stationed near reservoirs and still remain a widely accepted standardized approach to measuring evaporation rates on land. 
 
Monthly pan-to-lake coefficients were developed in the 1980s to connect the data collected from the pans to known lake conditions, extrapolating evaporation rates of the lakes using the pan data.
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Problems reached a head in 2012 when multiple infractions of European urban wastewater treatment laws threatened costly fines, on top of the environmental cost of repeated sewage spills into British rivers. 
 
Fast forward to 2025, and after a decade of construction work, London’s Thames Tideway Tunnel , affectionately dubbed the “super sewer”, is now fully activated and ready for testing.
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Dr.
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