Product Description

The Weathermatic SLM12-4800 is a 12-station expansion module designed for Weathermatic PL4800 and SL4800 controllers. It adds scalable zone capacity and SmartLine ET intelligence to compatible controllers. Installers can use conventional programming or enable automatic ET-based adjustments for improved water management. The controller automatically recognizes added zones upon installation.

Adds up to 12 irrigation stations to compatible SmartLine controllers (SL4800, SL1600, PL1600 and similar)
Basic mode offers conventional programming
Smart mode uses ET Watering to automatically adjust duration, frequency, and soak times based on environmental data

Product Highlights

This module provides clear diagnostics, valve locating, and SmartLine connectivity to reduce water use and simplify service.

Product Information

Standard Information

Brand: WEATHERMATIC
Manufacturer Part Number: SLM12-4800

Technical Specifications

Type: Expansion Module
Station Expansion: 12
Controller Compatibility: Weathermatic SL4800 Controller
Zones: 12
Controller Type: SmartLine SL4800
Module: SLM12-4800 12-zone module
Expandability: Up to 48 zones with additional SLM12-4800 modules
Power Requirement: 60 mA on a 120VAC line in idle mode with 48 zones utilized
Valve Common: Two valve commons provided
Master Valve/Pump Terminal: MV/P terminal provided
Sensor Terminal: SEN terminal for optional rain, freeze, or wind sensor
Auxiliary Power: Terminals provided for auxiliary power connections requiring 24V power
SmartLink Connection: Two RJ11 connectors provided for use with an optional SmartLink Aircard

Brand	WEATHERMATIC
MPN	SLM12-4800

Weathermatic SLM12-4800 12-Station Expansion Module

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