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SMRT-Y Kit Includes: 1 Controller User Interface. 2 In-Ground Soil Moisture Sensor. 3 Anodized, rust-proof screws, 1.5 (two per package) 4 Wire nuts 5 blue, 2 gray, 1 yellow. 5 Multilingual instruction manual, "Quick Start" Guide and sticker that reads: "This controller is connected to a Rain Bird Soil Moisture Sensor". Turns any controller into a smart controller. 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. User Interface with LCD Readout. 1 Touchpad keys with digital LCD readout displays: 2 Automatic moisture threshold setting with increase/decrease adjustment. 3 Sensor bypass touchpad key for easy deactivation. 4 Up to two independent zones can be isolated from sensor. 5 Designed for outdoor installation. The moisture sensor works when the series of discs in the sensor expands they get wet, and to a certain size, they flip a micro switch, this interrupts the current going from the controller to the valves, whereby the controller will tell the valves to start watering in the middle of a rainstorm, if the valves do not get the memo then they don't turn ... A moisture sensor estimates the amount of water in the soil that is being tested. It works by measuring the soil's ability to conduct electricity, higher moisture means more conducting power. The reason that some look down on soil moisture meters is because of the plethora of crappy and cheap ones that don't actually work well... but not all meters are bad. I use this soil moisture sensor in my house for my potted plants, and I actually have been very pleased with it. Advanced TDT Digital Soil Moisture Sensor. 1 Sensor uses Time Domain Transmissometry (TDT) and digital signal processing to measure soil moisture content accurately and consistently. 2 Corrosion-resistant in-ground sensor made of high-grade 304 stainless steel. 3 No maintenance sensor just bury and forget. soil moisture meters are garbage!! Lift up a bone dry pot and feel what it weighs. thatll give you an idea. like he said ! ... use your fingers.... a couple inches deep and still dry its time to water! I dont water heavey. I find it better to water lightly more often (2-3 days) instead of drenching the soil. At field capacity most soils have a soil moisture tension between 0.05 and 0.33 bars. Soils classified as sandy may have field capacity tensions around 0.10 bars, while clayey soil will have field capacity at a tension around 0.33 bars. At field capacity it is relatively easy for a plant to remove water from the soil. Discussion in 'Organics' started by BillyBonnie, May 30, 2012. BillyBonnie New Member. I get so tired of trying to guess when my plants need water. eDude Well-Known Member. I was born with ten soil moister meters.. nastynate420 Active Member. soil moisture meters are garbage!! BillyBonnie New Member. Query: how does a soil moisture sensor work
A soil moisture sensor works by measuring the soil's ability to conduct electricity.