






🌿 Smarter watering, greener lawns—join the future of effortless irrigation!
The Hunter Hydrawise HPC400 is a smart WiFi irrigation controller designed for residential lawns and gardens. It features app-based remote control, weather-adaptive watering that can reduce water usage by up to 50%, and supports 4 zones expandable to 16. With easy DIY touchscreen installation and a rugged weather-resistant build, it offers professional-grade irrigation management for busy homeowners seeking efficiency and convenience.



































| ASIN | B08BJBKW44 |
| Best Sellers Rank | #29,667 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #21 in Automatic Irrigation Controllers |
| Customer Reviews | 4.6 4.6 out of 5 stars (98) |
| Item Weight | 5.68 pounds |
| Item model number | HPC400 |
| Manufacturer | Hunter Industries |
| Product Dimensions | 4.5 x 10 x 9 inches |
| Smart Home Compatibility | Smart Home Compatible |
| UPC | 611698459942 |
A**R
Easy replace and set up
Awesome Product. I had old Hunter PC-400i. Replace and install very easy, it takes less than 5 min with testing all zones. App quality is superior. You don't need physical rain sensor. App automatically connected to Weather app. Wifi range is also good. It worth more than $200++
C**E
Excellent Smart controller for your irrigation system
Excellent product. Easy to program with their App and fairly easy to install However, if you are replacing an existing non-smart Hunter controller and trying to attach it to your house you will have to remove all the internal mechanisms to get to the upper left-hand corner of the controller housing to attach it to your house. A very poor design, which could’ve been easily remedied.
B**8
Works Great
Works Great. Easy to install and able to control my sprinklers from my phone now. Easy to set-up and program. So convenient.
P**N
Great unit
Easy to install and set up and I am not a techy person. Love running it from my phone.
I**C
So glad I got it!
I've decided to renovate my lawn, aka "carpet of weeds" this summer. I live in Texas, we haven't seen rain in several months and have been in triple digit heat for the same amount of time. I knew that introducing different amendments, fertilizers, etc. will require better irrigation control than having to go to the wall unit and manually start the zones I needed. I'm a female with no background in electrical wiring, irrigation systems or anything of that nature. I was able to easily take down my old Hunter unit, make some adjustments to fit the new one, and rewire this one in place. One thing I must say for the ones worried about connectivity. I have the worst to none connection in that particular spot where my control panel resides. That goes for both my wireless internet and cell signal. If I move to that area my calls get dropped and I'm not able to browse internet using my wifi. The new control station did tell me there is weak signal BUT I have no issues running any programs from the phone app. I was 99% sure I will have connectivity issues. Blown away by this feature alone. Now I can run whatever zones I want, at whatever time I need, from wherever I am. Be aware that this unit only comes with 1 module enough for 4 zones. If you have more you will need to buy additional expantion modules . I found that 6 zone module will not fit directly next to the one that came with the unit. It basically creates a gap for zones 5,6,7 and fits into the slot from 8 and on. May not be a big deal for some, but whoever originally wired my first unit left no slack on the wires. That extra 1.5'' gap was a problem for me because my wires were not reaching all the way up to the next module. I had to have mine stacked in order from bottom up to make this work. If your wires are long enough, a 6 zone module is cheaper than buying multiples of 3, you'd just have to reassign the numbers. I can't recommend this product enough.
S**R
Replaced a Hunter Pro C. Very easy to install!
Got ripped off by an irrigation guy who charged me to replace everything but what was broken. He stuck me with all new modules for my old Pro C controller, but it turned out that the controller itself was what was bad. Now I had 3 new Hunter modules without a working controller. Fired the irrigation guy and decided to DIY. Since this HPC400 used the same modules as the old Pro C, I got it. Very apprehensive about the DIY part, but it was a snap. This unit comes in its own outdoor box. You just connect the zone wires to the numbered module connectors (mark the wires before disconnecting them from the old controller). There is an easy-to-use connector for the 120V grounded plug, so it is very quick to disconnect it and hardwire the controller if you want. The wifi setup was super quick and simple right through the controller's touchscreen. Finally, the best part of all is the interface with the Hydrawise app. Lots of ways to set up zones and schedules. It uses free weather data for water saving, and it tracks your usage. Very pleased with this purchase.
B**S
Great Hunter to Hunter replacement option!
Great replacement option if you have a dates Hunter system. Was able to plug and play and reset up zones within 30min. Be sure to take a picture of old wire setup and label like colors with a small piece of tape so you don’t lose track of zones when you go through the installation process.
J**.
Great idea, not a great interface with the app.
Pros: * The concept is great - being able to control the sprinklers and the watering schedule remotely using an app is a lawn-saver if you travel over the summer. * I installed as an upgrade from an older Hunter controller and it was not terribly difficult. * I had a good customer service experience with them (a few years back) Cons: * IMHO, the app user interface is not intuitive. It can be very confusing figuring out even basic use cases like manually start/stop a zone, see what days it actually watered (or suspended) from last week/month, test the live connection to the controller, find your contractor and authorize their connection, etc.. * The app can lose contact with the controller and give false information (like showing it as watering when it is not).
A**R
Great product. Love the simplicity once you get by the wiring which takes some time.
W**Y
Perfect
D**E
Easy installation. Case is bulky so make sure you have the space.
Trustpilot
2 weeks ago
2 weeks ago