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Sophisticated Water Conservation…
Automatic high-flow shutoff feature saves water 
and money
We all know that water is not free! We either pay for 
it directly or we pay for the pump electricity costs. So 
whenever a high flow situation occurs due to a ruptured 
pipe or damaged sprinkler head, all that extra water 
going through the break onto areas that are not benefit-
ing from the extra water is running up the bill. If the 
system continues to operate in a “high-flow” state, the 
potential incremental cost of water can be substantial. 
Erosion Prevention…
Stop major landscape damage before it starts
The erosion damage that can come from a ruptured 
pipe or sprinkler break can be very substantial. Just 
imagine a 2" mainline in a landscaped area of a local 
park rupturing on a Sunday at 2:00 AM. By the time 
the city worker gets to the site to shut down the system, 
an enormous amount of water will have flowed onto 
the park and adjacent properties causing severe erosion 
damage. In this scenario, with a Hunter Flow-Clik 
monitoring system flow, a “high flow” situation would 
have been diagnosed and the entire irrigation system 
would be shut down instantly if installed on the main-
line leading to all of the individual control valves. 
Reduced Costs for Rupture Related Repairs…
Unanticipated budget allocations kept to 
a minimum
When a Flow-Clik is installed in the mainline pipe near 
the point of connection to the site water supply and ad-
jacent to a master valve, it will provide the ultimate in 
protection from damage caused by excess water flow. 
With the Hunter Flow-Clik flow sensor monitoring 
the systems flow, if a pipe ruptures, repairs would be 
minimal because of the quick shutdown response that 
the flow sensor provides.
Interface Panel Provides Control 
System Compatibility…
An overflow watchdog providing a constant 
update of flow for any system
The Hunter Flow Sensor Interface Box allows the 
Hunter Flow-Clik to function with all of the Hunter 
controllers and makes the Flow-Clik compatible with 
just about any other irrigation controllers on the market 
today. With the interface box attached to the control
-
ler, the Flow-Clik will keep an eye on any system as it 
watches for “high-flow” conditions.
The controller provides the power for the interface 
panel to operate allowing it to send signals continu-
ously directly to the controller telling it to shut down 
or start up based on flow conditions. Also, the inter-
face keeps the system operator aware and informed as 
to what is happening out in the system. A multicolor 
LED located on the interface displays the status of 
the system.
The Flow-Clik Interface Box has a System Status 
indicator LED that provides information on the current 
status of the Flow-Clik system.
•  GREEN indicates power is applied to the sensor, 
but no flow is occurring.
•  FLASHING GREEN indicates an acceptable 
amount of water is flowing. (Below the flow sensor 
calibrated maximum)
•  FLASHING RED 
indicates that overflow 
is occurring (Water 
flow in excess of the 
calibrated maximum)
•  RED indicates an unacceptable amount of water 
was flowing and the system has been shut down. 
(Water flow exceeded the calibrated maximum for a 
period longer than the startup delay).
•  ALTERNATING RED/GREEN indicates that 
system overflow occurred during the last automatic 
watering cycle (press the Restart/Calibrate button to 
reset the system status indicator.
•  YELLOW indicates that the Flow-Clik calibrating 
the sensor to the system flow).
Designed to Meet the Needs of Commercial and 
Residential Piping Systems…
The new Hunter Flow-Clik sensor bodies are avail-
able with an inlet/outlet sizes from 1" to 4" that will 
measure water flow from a minimum of 6 GPM to a 
maximum of 400 GPM. 
Installs Easily in New or Existing Systems…
Simple to add on to a new or existing installation
The Flow-Clik™ can be installed simply and easily to 
any standard 24-volt irrigation control system. Simply 
install the unit into the irrigation mainline. The wire 
PRODUCT FEATURES AND BENEFITS (continued)