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Rain Bird ESP-SMTe Sprinkler Timers

Proving that extra smart can also be extra simple.
Other Smart Sprinkler Timers claim simplicity and precision; the Rain Bird ESP-SMTe Smart Control System delivers. Combining the proven simplicity of the Extra Simple Programming (ESP) controller family with the accuracy of weather-based control, this innovative system can now expand up to 22 zones.
  • Side view of Rain Bird ESPSM3 expansion module showing side profile, vents, and the sliding edge used to insert into controller slots.
    Rain Bird ESPSM3 three‑station expansion module, front view showing station terminals and module faceplate with connector slots. Save 28%
    $88.00
    $63.80
    Rain Bird

    Rain Bird ESPSM3 3-Station Expansion Module

    In Stock (172)

    The Rain Bird ESPSM3 is a hot‑swappable 3‑station expansion module that increases the zone capacity of compatible ESP modular controllers without i...

    View full details
    $88.00
    $63.80
    Save 28%
    In Stock (172)


Instant rainfall shut-off and useable measurement

AA 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.




Dimensions

Controller

    • 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.


Rain Bird Irrigation Controllers

Rain Bird STPi Irrigation Controllers •Rain Bird ESP-M Irrigation Controllers •Rain Bird ESP-LX Irrigation Controllers •Rain Bird ESP-MC Irrigation Controllers

Other Brands of Irrigation Controllers

Irritrol Irrigation Controllers • Toro Irrigation Controllers •Hunter Irrigation Controllers

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