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Rain Bird® SMRT-Y Soil Moisture Sensor Kit

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Soil Moisture Sensor Kit(RSD-SMRTY) x 198.00$ Out of Stock

The SMRT-Y Soil Moisture Sensor Kit is an easy to install add-on to any standard irrigation system that directly links your irrigation controller to your landscapes moisture requirements. Program the controller to water every day that irrigation is allowed, and the soil moisture sensor will do the rest.

As the SMRT-Y optimizes moisture at the root zone, you will enjoy a lush, healthier landscape that is less prone to fungus and shallow root growth. By eliminating overwatering the SMRT-Y saves water, typically over 40%, paying for itself in less than a year. The sensor’s industry leading accuracy and durability addresses the environmental demands of both residential and commercial applications.  The SMRT-Y connects to an existing zone wire and never needs calibration or batteries. Simply connect, bury and forget.

Makes most any irrigation controller “smart”*

Simple to use, yet highly sophisticated in delivering water savings, the SMRT-Y Soil Moisture Sensor represents a new class of smart control technology. This affordable device precisely monitors moisture levels in absolute – rather than relative – terms, unaffected by soil temperature or electrical conductivity that limit the accuracy of other sensors.

Relaying that information back to the controller, it only allows a watering cycle when the root zone moisture drops below the set threshold. Based on the same Digital TDT sensing technology developed for agricultural applications, the SMRT-Y soil moisture sensor’s long-lasting dependability addresses the environmental demands of both residential and commercial applications. * Not compatible with 2-wire controllers

Water savings of 40% or more

By optimizing the amount of moisture at the root zone, the SMRT-Y conserves enough water in many applications to pay for itself in less than a year. Avoiding the tendency to overwater, you will enjoy a healthier, lush landscape that is less prone to fungus and shallow root growth.

The device eliminates needless watering and lets the soil say when watering is appropriate. Adding a soil moisture sensor allows you to meet many toughening water conservation guidelines that call for “smart” watering devices.

Advanced soil moisture sensing technology

Checking soil conditions every 10 minutes, the SMRT-Y displays moisture content, electrical conductivity and temperature of the soil, all at the touch of a button. The device also provides watering history for the last 7 irrigation cycles.

With soil moisture sensing, you no longer need to be concerned with adjusting the controller. Just program the controller once to water every day that irrigation is allowed – the soil moisture sensor will do the rest.

Key Benefits
  • Proven Water-Savings.An independent research study proves that a SMRT-Y delivers 45% to 73% water savings.
  • 20 Minute Installation. Perfect for contractors who are looking for a water-saving upgrade solution for their customers – with minimal installation time.
  • Makes Most Any Controller Smart. Works with any standard 24V AC controller, the SMRT-Y Sensor allows watering based on the soil's actual moisture content. Note: not compatible with 2-wire controllers.
  • Bury and Forget. Made with high grade 304 stainless steel – not plastic resin – the SMRT-Y Sensor has been rigorously tested for over five years in the harshest conditions for trouble-free performance.
  • Industry’s Most Accurate Sensor. The SMRT-Y digital TDT™ sensor is highly accurate in any soil condition with no manual calibration needed.
Advanced TDT Digital Soil Moisture Sensor
  • Sensor uses Time Domain Transmissometry (TDT) and digital signal processing to measure soil moisture content accurately and consistently
  • Corrosion-resistant in-ground sensor made of high-grade 304 stainless steel
  • No maintenance sensor – just bury and forget
  • Reads absolute – rather than relative – Volumetric Water Content (0-100%)
  • Moisture readings remain stable as soil salinity and temperature change
  • Sensor never needs
User Interface with LCD Readout
  • Touchpad keys with digital LCD readout displays:
    - Absolute Volumetric Water Content, 0-100%
    - Soil temperature in Fahrenheit or Celsius
    - Soil conductivity in dS/m
    - Seven-cycle irrigation history
    - Suspended/allowed watering indicator
    - Bypass mode indicator
  • Automatic moisture threshold setting with increase/decrease adjustment
  • Sensor bypass touchpad key for easy deactivation
  • Up to two independent zones can be isolated from sensor
  • Designed for outdoor installation
Operating Specifications
  • 25 Volts AC at 12W
  • Operating temperature range: -4°F to 158°F (-20°C to 70°C)
  • Survival temperature range: -40°F to 185°F (-40°C to 85°C)
  • UL, CUL, C-TICK Certifications
  • Sensor Control
    • Overall Width: 3.0" (76mm)
    • Overall Height: 3.0" (76mm)
    • Overall Depth: 0.75" (19mm)
  • In-Ground Soil Moisture Sensor
    (dimensions not including wires)
    • Overall Width: 2.0" (50mm)
    • Overall Length: 8.0" (200mm)
    • Overall Depth: 0.5" (12mm)
SMRT-Y Kit Includes:
  • Controller User Interface
  • In-Ground Soil Moisture Sensor
  • Anodized, rust-proof screws, 1.5" (two per package)
  • Wire nuts – 5 blue, 2 gray, 1 yellow
  • Multilingual instruction manual, “Quick Start” Guide and sticker that reads: “This controller is connected to a Rain Bird Soil Moisture Sensor”



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