Cellular rain station - solar-powered LTE-M/NB-IoT rainfall monitoring: WatchDog 4105 | Spectrum Technologies

The WatchDog 4105 Cellular Rain Station is designed to record and transmit site-specific rainfall data for operational monitoring, stormwater management and field-based decision-making.

Equipped with an 8-inch diameter rain collector, the station meets National Weather Service specifications and is designed for accurate, reliable rainfall measurement in outdoor environments.

The station is solar powered and transmits rainfall data to the SpecConnect cloud software platform, with data also accessible through the WatchDog Mobile App.

Advantages

• Real-time rainfall monitoring: supports site-specific tracking of rain events for faster operational response.
• Solar-powered operation: integrated solar panel with rechargeable Li-ion battery.
• Cellular communication: automatic selection of LTE-M or NB-IoT at installation.
• Cloud-based access: rainfall data is transmitted to SpecConnect and visible on the WatchDog Mobile App.
• Rain alerts: alerts can be sent by text, email or phone call.
• Quick setup: station setup is carried out through the WatchDog Mobile App.
• Outdoor-ready design: IP67 water resistance and operating temperature from -40 to 85°C.

Main characteristics

• Model: WatchDog 4105 Cellular Rain Station
• Rain resolution: 0.01 in / 0.254 mm
• Rain accuracy: ±2% at < 2 in / 5 cm per hour
• Rain collector: 8-inch diameter collector meeting National Weather Service specifications
• Operating temperature: -40° to 185°F / -40 to 85°C
• Cellular radio technology: LTE-M and NB-IoT, auto-selected
• Cellular radio frequency: region-specific: US915, EU868, AU915, AS923
• Radio transmit range: up to 3.5 miles / 6 km, clear line of sight
• Power source: 3,000 mAh rechargeable Li-ion battery with integrated solar panel
• Sampling / transmit interval: 15 minutes / 2 hours
• Water resistance: IP67
• Mounting: supplied with two U-bolts for mounting to a 1.25-inch pole

Typical applications

• Stormwater management for municipalities
• Flood prevention and runoff monitoring
• Pumping station management based on local rainfall data
• Agricultural monitoring where field-based rainfall data is related to crop yield
• Planning of field and job-site activities based on rainfall conditions
• Golf course and sports field monitoring to assess playability after rain events

Why choose WatchDog 4105

The WatchDog 4105 provides a practical solution for organizations that need local, reliable and remotely accessible rainfall data. Its combination of cellular communication, solar power, cloud access and rain alerts makes it suitable for unattended outdoor monitoring sites.

For municipalities, agricultural operations, sports facilities and job-site managers, the WatchDog 4105 helps convert rainfall events into actionable data for stormwater response, site planning and operational decision-making.