Hunter HPC-FP Hydrawise Face Panel Upgrade for Pro-C Timers

The Verdict

The smart upgrade your old Hunter Pro-C has been waiting for — if you’ve got the right base unit.

Let’s be blunt: you don’t need a brand-new $200+ smart controller if you already own a Hunter Pro-C. The HPC-FP Hydrawise Face Panel is a clever retrofit that swaps only the front panel of your existing timer, giving it full Wi-Fi smarts for roughly half the cost of a complete replacement. With 229 Amazon ratings and a 4.6-star average, it’s clearly working for most people. But it’s not a universal fit, and there are a few quirks worth knowing before you click buy.

What’s in the box

You get the Hydrawise face panel itself — a compact unit with a 2.4-inch color display, a wired temperature sensor (for freeze protection), and a mounting bracket. The panel is designed to replace the front face of your Pro-C, Pro-C Professional, or Pro-C with PSM (Power Source Module). It connects to the base via a ribbon cable — no rewiring of your valve wires needed. That’s the whole pitch, and it’s a good one.

Performance and real-world use

Setup is straightforward: pop off the old face, connect the ribbon, snap in the new panel, download the Hydrawise app. Most buyers report getting it running in 10–15 minutes. The app is where this thing shines. You get full zone control, custom schedules, and — the big draw — weather-based Smart Watering. The system pulls local ET (evapotranspiration) data and adjusts run times automatically. One reviewer put it simply: “It paid for itself in one summer of water savings.” That’s not marketing fluff; multiple users mention seeing their water bills drop.

The display itself is responsive, and the interface is far more intuitive than the old button-and-LCD dance. You can also set up flow monitoring if you have a compatible Hunter flow sensor, which catches leaks before they become expensive problems.

What buyers consistently praise

• Ease of install: Nearly every review mentions how simple the swap is. “Took longer to find a screwdriver than to install it.”
• App reliability: The Hydrawise app gets consistent thumbs-up for being stable and feature-rich — not the buggy mess you sometimes get with smart irrigation.
• Customer support: Hunter’s support team gets shout-outs for walking people through setup issues, particularly with Wi-Fi.

Where it falls short

The most common complaint is Wi-Fi connectivity. The panel only supports 2.4GHz networks, and if your timer is in a metal garage or basement, signal strength can be weak. A few reviewers needed a Wi-Fi extender — not a dealbreaker, but factor it in.

Second, the HPC-FP is not a standalone controller. It only works with Pro-C base units. If you have an older ICC or a different brand, this won’t help you. Double-check your model number before ordering.

Third, the temperature sensor is wired, which means you’ll need to route it outside the enclosure. It’s a minor hassle, but some buyers found the included wire a bit short for their mounting location.

Who should buy this

• Pro-C owners who want smart watering without a full replacement — this is your cheapest, cleanest path.
• DIYers comfortable with basic electrical work — it’s genuinely easy, but you should be able to identify your timer model.
• Water-conscious homeowners — the ET-based scheduling is the real value here.

Skip it if:

• You don’t already own a Pro-C.
• Your timer is in a spot with weak Wi-Fi and you’re not willing to add an extender.
• You want a touchscreen — this is a button-and-display unit, not a sleek glass panel.

FAQ

Q: Will this work with my Hunter Pro-C that’s 10 years old? A: If it’s a Pro-C, Pro-C Professional, or Pro-C with PSM, yes — the HPC-FP is designed to retrofit those models. Check the model sticker on your timer’s door.

Q: Does the Hydrawise app cost a subscription? A: No. The app and web portal are free. You only pay for the hardware.

Q: Can I still use the timer manually without Wi-Fi? A: Yes. The panel has full manual controls on the device itself, so you’re never locked out if your internet goes down.

The Verdict

Buy it if you own a Pro-C and want weather-based scheduling, remote control, and water savings without replacing your whole system. It’s a smart, well-supported upgrade at a fair price.

Skip it if you don’t have a Pro-C base, or if your timer’s location makes reliable Wi-Fi unlikely.

Rating: 4.6/5 — The HPC-FP delivers exactly what it promises, with only minor connectivity quirks holding it back from a perfect score. For most Pro-C owners, this is the smartest $100-ish you’ll spend on irrigation this year.

Where to Buy

👉 Check Price on Amazon →

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.