block Sensors and Weather Stations

Effective May 1st, 2007, all underground irrigations systems installed in the City of Lincoln and Lancaster County must have a moisture sensor installed that will interrupt the automatic irrigation during a rain event.

There are many different types of rain and climate sensors. Rain sensors are designed to interrupt an irrigation cycle during a rain event. Moisture sensors are buried in the ground and when there is an ample amount of moisture in the soil this device will stop the irrigation cycle. Weather sensors are a bit like a sensor buffet that detect past rainfall, wind speed, and freezing tempatures. Flow Clicks or mainline sensors protect your home or business by monitoring the amount of water flowing through your irrigation system. If an excessive flow occurs this device will shut down your system preventing flooding. The most complex of all the sensors are the climate sensors. These types of devices are like mini-weather stations; they calculate the (ET) evapotranspiration rate on site and automatically re-adjust your sprinkler controller run times to only apply the exact amount of water lost from the last irrigation cycle or rain event.

 

Mini-Clik

Hunter Mini-Clik Irrigation Sensor

There's nothing more embarrassing-or more wasteful or costly-than an irrigation system that runs when it doesn't have to...in the rain. Mini-Clik® provides the simplest, most effective way to prevent sprinklers from coming on during or after precipitation. It easily installs on any automatic irrigation system, then shuts sprinklers off in a storm and keeps them off, automatically compensating for the amount of rainfall that occurred. Disks absorb water and expand proportionally to the amount of rain that fell (e.g., a small cloudburst would result in little absorption, a 6" thunderstorm would lead to more absorption and expansion). As the moisture-laden disks expand, they eventually activate a switch that interrupts the circuit from the controller to the valves. Once dry, they contract and release the switch. Thus, Mini-Clik automatically resets without ever affecting your controller. There's no better way to ensure that a system isn't watering when it isn't necessary

Features and Benefits

  • Easily installs on any automatic irrigation system
    Versatile enough to work with all popular controllers
  • Patented mechanism cannot be fouled by dirt or debris
    Reliable operation, no false shutdowns
  • Adjusts to actuate at various rainfall quantities
    Set from 1/8" to 1" based upon your local conditions
  • Includes 25 feet of 20 gauge two conductor wire
    Fast and easy mounting out of sight

Solar Sync

As technology has made leaps and bounds in the last few years so have irrigation controllers. With almost 60% of all domestic use water being delivered to turf and plant material it has never been more important to use less to do more. Hunter's new Solar Sync is an inexpensive way to make your Hunter irrigation contoller and irrigation system even more efficient. The Solar Sync is designed to factor in the current weather conditions and adjust your irrigation controller automatically by factoring in (ET) evapotranspiration. Now you are asking ET what, below is the definition of evapotranspiration and how it effects your watering habits and the turf and landscape.

Hunter Solar Sync Irrigation Controller

The term evapotranspiration combines two words: evaporation of water from the soil, and transpiration of water from plants into the air. Evapotranspiration means the total loss of water from a crop into the air. Water evaporates from any moist surface into the air unless the air is saturated. Water surfaces in contact with air, such as lakes, plant leaves, and moist soils, all evaporate water.

Plant leaves lose water though small openings called stomata that are found on the leaf surface. The water moves from the moist soil into the plant roots, up through the plant, and leaves through the stomata. Evapotranspiration is loosely called crop water use.

Crop water is important because it determines how much water must be provided by irrigation or rain. If there is too little water, the crop yield can diminish. If there is too much irrigation, then it will waste energy, water, and nutrients and unnecessarily deplete the aquifer.

Hunter Solar Sync Irrigation Sensor

Water has three functions in plants. It cools and hydrates them, and is also essential for the transport of nutrients. Less than 1% of water remains in the plant tissue. Considering water makes up 90% of the weight of most crops, this may seem surprising, but plants use the water for other purposes.

Weather is a major factor in evapotranspiration. The surface temperature of plants and soil is almost that of the air temperature. Brighter sunlight means that plants need to evaporate more water through evapotranspiration to keep their temperature near normal. If the air is dry and hot, with strong winds, then the crops will lose water at a faster rate. More water will evaporate from plants if the air is a higher temperature, if there is more solar energy and lower humidity, and if there is a faster windspeed.

Evapotranspiration is estimated by the use of many formulas. There are computer software programs available to help people estimate evapotranspiration. Radio, newspapers, and network services often give out reports on potential evapotranspiration figures. There is also crop referencing, which compares the evapotranspiration rate of a reference crop of plants to the same types of crops grown by other individuals.

Soil water and crop water are very important to crop evapotranspiration, and critical to irrigation management. The characteristics of soil determine how tightly it can hold water and how quickly that water can replace absorbed water in crop plants. The depth of the plant root controls the amount of water available to the crop for evapotranspiration. The main goal of irrigation is to keep the soil water availability from limiting evapotranspiration.

Weather Station

Hunter Mini-Clik Irrigation Sensor

Having a climate like a smorgasbord can make for some tricky business when it concerns your irrigation system. Of course, you can simply look out the window and decide whether to turn on the sprinklers manually each day, but that defeats the purpose of an automatic system. What you really need is an automatic device that can make the decision whether there is too much rain, too much wind, or too much cold to do the watering. With the Hunter Mini-Weather Station you get each of Hunter's three different sensor devices in one single convenient unit. The Mini-Clik® rain sensor shuts sprinklers off in a storm and keeps them off, automatically compensating for the amount of rainfall that occurred. The Freeze-Clik® prevents system activation by automatically stopping the flow of water when outdoor temperatures drop near freezing. The Wind-Clik® shuts off systems during periods of high wind, then automatically resets the system when conditions are more favorable. Easy to mount (it attaches to your controller with just two wires) and easy to use, the Mini-Weather Station takes all the guesswork out of when you shouldn't water.

Features and Benefits

  • Easily install on any automatic irrigation system
    Versatile enough to meet your particular needs
  • Heavy duty construction
    Built sturdy for years of trouble-free operation
  • Shuts system off in rainy conditions
    Sets from 1/8" to 1" based upon your local conditions
  • Sets to shut down system from 12 to 35 mph winds
    Choose the wind speed most effective for your area
  • Automatically shuts off water at 37°F
    Eliminates ice on landscapes, walkways, roadways

Flow-Clik

Hunter Flow-Clik Irrigation Sensor

The hazards of an over-flow situation knows no economic boundaries. A high flow and the damage that can occur could just as easily take place on a simple residential system as it could on a top-of-the line commercial system comprised of institutional-grade components. That's why Hunter has developed the Flow-Clik, an economical way to monitor and shut off the flow of any system-existing or new, large or small. A ruptured pipe or broken sprinkler that is left undetected can result in a substantial amount of damage. Plants and groundcover can be flooded, a slope can be eroded, even solid surfaces such as sidewalks or driveways can be undercut. The installation of a Flow-Clik will ensure that such a break will be identified before any damage can occur. The Flow-Clik is user-set to activate at a specified level of flow; once that level is exceeded, the electrical circuit is broken and the valves are shut off. As a result, the amount of water loss in the event of high external leakage would be substantially reduced. For liability reduction, erosion prevention, and an easy means of water conservation, there is no better low cost solution than the Flow-Clik.

Features and Benefits

  • Reduced costs for rupture-related repairs
    Unanticipated budget allocations kept to a minimum
  • Weather-proof interface panel provides system status
    "Overflow watchdog" provides constant update for any system
  • Compatible with all commercial and residential piping systems
    Large flow range provides complete flexibility
  • Customized calibration for precise system control
    Every irrigation system is set individually with a single push button
  • Multi-color LED provides system status
    Displays if power is applied and whether flow is acceptable