Hunter’s Pro-C Hydrawise platform has been a staple for contractors and serious homeowners for years. The SPW HPC-400 takes that foundation and adds Wi-Fi control with modular expandability. It starts as a 4-zone controller, but you can scale it up to 16 zones by snapping in additional modules. That flexibility matters if your property grows or you add irrigation areas later.

Predictive Watering is the standout feature here. The system pulls local weather data and adjusts your schedule automatically. If rain is forecasted, it skips the watering cycle. If temperatures spike, it adds runtime. It works quietly in the background without needing constant app check-ins. The controller also supports remote management via the Hydrawise app, and you can still use Hunter’s Roam and Roam XL remotes for on-site tweaks. That dual approach is practical for anyone who wants quick manual control without pulling out a phone.

At 5.7 pounds, the unit feels solid and weather-resistant for outdoor installation. The setup process is straightforward through the app, though you’ll need a stable 2.4GHz Wi-Fi connection. There’s no Ethernet port, so mesh networks with separate bands may require a little extra attention during pairing. Once it’s running, the system is reliable and saves water without demanding much of your time.