Zurn Weathermatic SLW5 Wireless Weather Station (SmartLine) - SLW5
Weathermatic SLW5 Wireless Weather Station delivers on-site weather sensing and SmartLine compatibility to automatically adjust irrigation run times based on real-time conditions. Designed for outdoor use, the SLW5 combines rain and freeze detection with evapotranspiration (ET)-based adjustments to reduce water waste and lower operating costs for residential and light-commercial systems.
Durable and easy to install, the SLW5 is ideal for contractors and landscape professionals who want reliable, low-maintenance weather-based irrigation control. Refer to the included installation guide for setup steps, diagnostics, and warranty information.
Features
- SmartLine compatible — ships with the SLHUB‑RF‑5 wireless hub for easy setup and pre-paired communication.
- Adjustable rain shut-off from 1/8″ to 1″ (3–25 mm) with an extended rain-delay feature (48‑hour default; adjustable 0–99 hours).
- Freeze shut-off activates at 37°F (3.0°C) and automatically resumes irrigation when temperatures rise.
- 900 MHz bi‑directional wireless communication with up to 1,500 ft (457 m) line-of-sight range; obstacles may reduce effective range.
- Operates on two AAA lithium batteries (supplied) with remote battery diagnostics and up to 10-year battery life under normal conditions.
- Protective white solar shields and an adjustable aluminum mounting arm for gutter or wall installation provide accurate temperature readings and low maintenance.
- On-board diagnostics report battery and communication status to the SmartLine controller to simplify troubleshooting.
What our Experts Think
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ET-based irrigation control: Feeds live weather data to SmartLine controllers to automatically adjust watering schedules and reduce water waste.
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Wireless long-range communication: 900 MHz bi-directional signal with up to ~1,500 ft line-of-sight range for flexible installation.
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Rain & freeze protection automation: Automatically halts irrigation during rainfall or when temperatures drop to ~37°F (3°C).
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Smart water savings logic: Continuously adjusts irrigation run times based on evapotranspiration (ET) and local weather conditions.
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Low-maintenance design: Protective solar shielding improves temperature accuracy while minimizing cleaning needs.
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Installer-friendly setup: Pre-paired wireless hub system simplifies installation and reduces commissioning time.
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Commercial-grade reliability: Built for professional irrigation systems where efficiency, compliance, and automation matter.
Q&A
Maintenance Tips
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