•4-zone base model, expandable to 16 zones using SLM4 4-zone hot-swappable modules (Indoor/Outdoor rated)
•Rain/Freeze sensor bypass/active button located on face panel displays sensor status with tri-color LEDs 
•Nonvolatile memory and real time clock/calendar circuit to retain programs as well as correct date and time - with no battery required
•Microprocessor records and processes weather data for use in establishing Auto Adjust run times on any SmartLine controller
•Maximum wireless distance from controller to weather station is 600' (182m). SLHUB-RF wireless hub included with SLW15. SmartLine controller firmware version 1.08 or later required.

Weathermatic_Model# SL1616-SLW15


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