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  Rain Bird ESP-SMT-4ME-4 Zone Outdoor Sprinkler Timer-Rain Sensor
ESP-SMT-4ME-4 Zone Outdoor Sprinkler Timer-Rain Sensor

Our Price: $314.15
Sale Price: $173.15
You save $141.00!

Product Code: ESP-SMT-4ME

Description Reviews

Rain Bird ESP-SMT-4MEI Outdoor Smart Irrigation Control System, Includes Tipping Rain Sensor.


Any company can make claims about their products, but delivering on those promises is an entirely different task! Rain Bird has built a line of controllers that is designed to be easy to use and easy to program, making the process of installing multiple controllers in multiple sites an easy non-threatening task. The Rain Bird ESP-SMTe smart controller brings all the function and ability you expect from a commercial controller and combines it with the simplicity and ease that comes with residential controllers. The ESP-4ME takes the best parts of previous controllers in the Rain Bird line and combines them with added features and benefits to make the controller one of the most powerful and user friendly devices Rain Bird has ever created.

Perfectly suited for a myriad of residential situations; allowing for as many as 22 stations (zones) to be added to its base 4-zone configuration. The ESP-Me line of controllers in as close to a universal solution as any controller on the market.

All Models of the Rain Bird ESP-SMTe controller are EPA WaterSense Approved.

Instant rainfall shut-off and useable measurement

A smart controller should be smart enough to account for rainfall, right? Not always. In fact, most smart controllers simply suspend irrigation when it rains, without accurately measuring rainfall. By comparison, the ESP-SMTe not only suspends irrigation, it measures instantaneous rainfall amounts, determines the effective rainfall and calculates exactly how much to adjust your watering schedule to prevent over-watering and under-watering.

The proven accuracy of weather-based scheduling

In designing the ESP-SMTe, we’ve simply reduced the cost and complexity of the weather-based control systems we began pioneering for golf courses over 25 years ago. Drawing on the industry-leading precision of these larger, more sophisticated units, the ESP-SMTe makes Rain Bird weather-based control affordable for homeowners—once and for all.

Expandable modular design

The Rain Bird ESP-SMTe can grow with your landscape, easily expanding from 4 stations up to 22 stations with the addition of optional hot-swappable expansion modules.

Zone-specific water calculations

Different plants have different watering requirements. That’s why the ESP-SMTe customizes each zone’s irrigation schedule. It factors in location, soil type, landscape slope, plant type/density, sun exposure, sprinkler type and root-depth requirements. Based on this zone-specific data, the ESP-SMTe controller optimizes the irrigation schedule to promote lush, healthy plant material in each part of your yard, while substantially reducing water waste and runoff.

Three-year trade warranty.

Manuals and Literature



    • Width: 10.7”
    • Height: 7.7”
    • Depth: 4.4”

Sensor (Largest Area Across)

    • Width: 6.0”
    • Length: 8.8”
    • Height: 5.9” (includes Solar Shield)

Mounting Bracket (Mounted on Vertical Surface)

    • Maximum reach: 7.0”

Electrical Specifications

    • Input Required: 120VAC +/- 10%
    • Output: 25.5VAC 1A
    • Surge Protection: Primary input side has (2) built-in MOV’s (metal oxide varistor) to protect circuitry. Output side has(2) built-in MOV’s for each valve station.
    • Power back-up: Lithium coin-cell battery maintains time and date while non-volatile memory maintains the schedule.
    • Multi-valve station capacity: Up to two 24VAC, 7VA solenoid valves per station plus a master valve.

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