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Hunter SOLARSYNC Wired Rain Freeze and Sun Sensor with Module

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Hunter SOLARSYNC Wired Rain Freeze and Sun Sensor with Module

The Solar Sync ET sensor is an advanced weather sensor that calculates evapotranspiration (ET) and adjusts Hunter controllers daily based on local weather conditions. Solar Sync measures sunlight and temperature and uses ET to determine the correct seasonal adjustment percentage value to send to the controller. The controller then uses its programmed run time and adjusts to Solar Sync's seasonal adjustment value to modify the actual irrigation runtime for that day. In addition, the Solar Sync ET sensor integrates Hunter's popular Rain-Clik and Freeze-Clik sensors providing quick response in shutting down your irrigation system during rain and/or freezing conditions. The Solar Sync is compatible with most Hunter controllers and applicable to residences, businesses, and municipalities alike.

Diagram Details

  • A - Solar radiation sensor
  • B - Rain-Clik ring
  • C - Vents
  • D - Quick Response
Hunter SOLARSYNC Wired Rain Freeze and Sun Sensor with Module

Product Details

  • Provides automated daily adjustment to program run times
  • Wired and wireless models available
  • No Water Window programming available (except X-Core)
  • Rain and freeze shutoff
  • Gutter mount bracket included
  • Warranty period: 5 years (10-year battery warranty for wireless model)
  • Maximum distance sensor to the module: 200 ft. (wired model) or 800 ft. (wireless model)
  • 40 ft. of wire included in the kit (wired model)
  • Solar Sync and Wireless Solar Sync compatible with Pro-C and PCC controllers
  • Solar Sync Sensor and Wireless Solar Sync Sensor are compatible with X-Core, I-Core, and ACC controllers
  • Rain and Freeze sensor shutdown capability included in the sensor
  • Approval: FCC, CE
Product Type:
Rain, Freeze and Sun Sensor
Sensor Material:
Rain, Freeze and Sun Sensor
Sensor Connection:
3.0 / 5.0
3 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
good product
Both items are working fine.
Hunter warrants these for 5 years. There is a date stamp on both pieces. Mine were dated for the year 2014. Will Sprinkler Warehouse cover the warranty on mine?
January 16, 2019
1 year ago
A word to potential buyers
I'm not so sure about how much this unit makes in daily adjustments, but it definitely does make large seasonal adjustments both reducing and increasing watering times and it does shut off the system when it rains. I gave it a low score because the outside sensor doesn't last. From my own personal experience and from what I've managed to find on various forums, the sensor routinely fails shortly after the 5 year warranty is up. So although the unit seems to work fairly well, you need to be prepared to replace the external sensor every 5 years which makes up almost 90% of the cost of the entire Solar Sync option. If your water bills aren't very high, I wouldn't recommend this option.
June 19, 2016
over 9 years ago
Very simple to install.
The product comes with all componets needed and simple instructions.
July 20, 2014
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 17 questions Browse 17 questions and 77 answers
Why did you choose this?
SprinklerWarehouse.com Store
Brand, but didn't work as expected
JKoelling on Mar 30, 2017
Brand, but didn't work as expected
JKoelling on Mar 30, 2017
Saves on water and rust control. I have a Rid-O-Rust system and it can get expensive when you are watering 4 acres.
Jeff S on Feb 21, 2011
Saves on water and rust control. I have a Rid-O-Rust system and it can get expensive when you are watering 4 acres.
Jeff S on Feb 21, 2011
I am looking at a Hunter XC-800 controller and wanted to verify that this sensor is compatible?
A shopper on Jan 10, 2012
will this work with the Pro-C hunter controller?
A shopper on May 27, 2015
BEST ANSWER: Yes, it worked with mine. If your Pro-C is a newer controller you can wire the sensors right to the controller and bypass the module (its already built into the newer controllers). Apparently hunter hadn't updated their SOLARSYNC manuel, it was outdated and didn't have a section for hooking into the newer Pro-C controller, it took me a while to figure that out.
Can solar sync be powered by batteries?
johng on Jul 15, 2013
BEST ANSWER: The Solar Sync is not intended for stand-alone operation. When used with a compatible controller it using the controller's power supply.
There is a battery, however. It is a CR2032 used as a non-volatile memory and timer back-up. The expected lifetime of it is 10 years.
Was you unit "wireles" of "hardwired"?
M C on Jun 27, 2011
I prefer the in ground moisture sensors from rainbird. I was able to install them all in series to prevent overwatering.
I have Hunter Pro-C Timer. I would like to install Sensor on it. Do you have any recommedations? Is it easy to install on Hunter Pro- C?
Vic L on Jun 19, 2011
BEST ANSWER: I have a Hunter Pro C as well. It's very easy to install. The instructions are good. If my memory serves me correctly, you only need to connect to the AC power and sensor connectors on your Pro C. I did have one issue that wasn't documented that gave me some grief. I connected everything properly but the Solar Sync display would flash extremely rapidly and did not work properly. I ended up calling Hunter support, who was quite good by the way. The fix is there are two AC wires on your Pro C that you tap in to. Simply switch the lead from the Solar Sync to the AC posts on the Pro C around. My guess is the controller uses one lead for valve control and the other to power the Pro C itself and you need to use the same power source for the Solar Sync as the Pro C for everything to communicate properly.
I have recently installed this sensor in a Pro C controller and when the controller is in active the display on the pro-c says "OFF - Sensor". Changing it to bypass it shows the time and runs as intended. Do it seem like a rain click/freeze click issue or am I missing something? It's wired up as per the instructions and the SolarSync display does not show any error message, shows just the time. On idea on how o troubleshoot this issue? It's new.
Bill the Engineer on Apr 21, 2014
BEST ANSWER: Hi William, It could be a few things. I would say it could be a wiring issue, that one of the wires got crossed, double check the wiring (I know you said you did, but double check). Or you have a sensor that is stuck on the solar rain sensor. Have you tried clicking it a couple of times to see if that clears it? Those would be the 2 top thoughts.
Will The Solar Sync work with toro controllers?
s t on Apr 3, 2015
BEST ANSWER: I understand that the solar sync I am using - without the module - relies on software in my controller. (Hunter). I am not sure if using the stand alone solar sync module would work with other manufacturers controllers.. John H
Does the solarsync operate via sattelite? I was advised by a landscape company that the solarsync operates via sattelite and is therefore unreliable. I have personally found
solarsync to be wonderful, but would like to know for sure whether the landscape company is misinformed, or if solarsync does operate via sattelite. Thank you kindly, Micki Terra
A shopper on May 15, 2014
BEST ANSWER: I would advise going to a different landscaper because that is simply ridiculous. The sensor uses temperature and rainfall information it collects and then does some internal calculations to determine if it should shut down the controller.
Mine has done just what I expected it do do whenever it has started raining a significant amount before or during an irrigation cycle, which is to shut down the system.
Is the Solarsync able to be used with a Hunter SRC + controler?
A shopper on Apr 23, 2014
BEST ANSWER: I am not sure about the SRC. A "Hunter SOLARSYNC Wired Rain Freeze and Sun Sensor with Module" has been working flawlessly with my Hunter Pro-C since September 2013. My only concern is what UV will do to the sensor and the wire. I am in Southern CA.
Is this product be used instead of a et system? I have a pro -c controller with a wired sensor now. Do I just remove my current rain sensor and hookup this product?
David M on Mar 4, 2013
BEST ANSWER: I did exactly that - I removed my current rain sensor and ran the attached wire from the solarsync to the same terminals on my Pro-C. Works great! Watch the lawn for a week or two though to make sure you are getting the right amount of water. Once it is setup though it is good to go!
Presently my solarsync seems to be shuting off in the 45-50 degree range instead of the advertised 37 degree range. Is there an adjustment in the controls for temperature settings?
A shopper on Dec 6, 2011
BEST ANSWER: I am not aware of a way to adjust the shut off temp. Check the manual, which can be downloaded from hunter's website and/or call Hunter directly. The unit probably needs to be repaired and/or replaced.
Is receiver included?
A shopper on Dec 22, 2016
BEST ANSWER: Don't waste the money. I have it, and I don't use it. It constantly changes settings and is incredibly frustrating. Especially if you have a garden set up as a specific zone, it will change the setting for your garden and your plants will not get enough water.
The display on my Hunter Solar Sync shows ERR. If I unplug the power and back on, it will reset to normal, but goes back to ERR after a minute or two. What is the problem?
A shopper on Aug 4, 2016
BEST ANSWER: Updated: Depending on your controller, the wiring can be a little confusing! I found my pcc600i needs only the GR and BK wires wired directly from the solar sync sensor (not the module) into the two SEN ports, *AND* remove the metal jumper between them. Mine is now coming up but I too was getting ERR. Hunter's website says if you have an older controller with green buttons then you would need the solar sync module itself in addition to the actual sensor. Mine is newer with blue buttons so I only needed the sensor. Hope that helps.
What's the price on the wireless model ?
A shopper on Mar 7, 2012

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