The Hunter® HPC-400 is the Wi-Fi-built-in version of the Pro-C® controller — same modular wiring bay (4 stations base, expandable to 23 conventional / 32 with EZ Decoder), same IP44 outdoor-rated plastic cabinet, but with the Hydrawise® firmware, dedicated 2.4 in. color touchscreen, and integrated 2.4 GHz Wi-Fi radio baked in. No PC-WIFI module to add, no separate gateway — pair the controller to the homeowner’s Wi-Fi at install and they have full smartphone app control, predictive weather adjustment from local stations, and flow-sensor support out of the box.

Why Pros Specify the HPC over the Pro-C

• Hydrawise® smart-water firmware — predictive watering based on real-time local weather (rainfall forecast, temperature, wind, humidity, ET) pulled from any of 50,000+ weather stations; no Solar Sync sensor purchase required for smart adjust
• Built-in 2.4 GHz Wi-Fi — 802.11 b/g/n, WPA/WPA2 Personal, TLS/SSL secured; pair to the homeowner’s router at install
• 2.4 in. color touchscreen — programmable on-cabinet with a finger; tile-based UI (Zones / Settings / Status) instead of a dial
• Hydrawise mobile + web app, free for life — iOS, Android, and any browser; remote start/stop, schedule edits, alerts on missed run or flow anomaly, push notifications
• Flow sensor support standard — wire an HC-Flow Meter (sold separately) and the controller logs flow per zone, alerts on anomalies, and auto-shuts off on stuck-valve / mainline-break events
• 2 sensor inputs (SEN-1 / SEN-2) — Hunter Clik rain/freeze/wind/soil-moisture sensors and a flow meter on the same controller
• 4-station base, modular expansion to 23 stations — same PCM-300 (3-station) and PCM-900 (9-station) modules as the conventional Pro-C; up to 32 with the Hybrid EZ Decoder
• Contractor accounts in Hydrawise — manage multiple HPC controllers across multiple sites from one login; transfer site ownership to the homeowner at handoff
• Auto-updates over Wi-Fi — new firmware ships from Hunter without a service truck roll
• P/MV output for pump start relay or master valve — standard
• Pre-wired 120 VAC cord with U.S. plug — outlet install, no hardwiring
• IP44 cabinet rating — outdoor wall-mount certified
• HPC-FP retrofit upgrade path — existing P2C Pro-C controllers can be field-upgraded to HPC via the HPC-FP front panel (sold separately) without replacing the wiring bay
• 2-year manufacturer warranty, UL Listed

Where It Shines

• Properties where the homeowner wants smartphone control on day one without buying a separate Rachio or B-hyve
• Service plans where the irrigation contractor wants to monitor multiple client sites from a single Hydrawise dashboard
• Drought-restricted municipalities that mandate smart-controller compliance (HPC meets WaterSense / EPA SmartWater requirements via Hydrawise predictive watering)
• Sites where flow monitoring is wanted (irrigation manager / property owner cares about leak detection and water-use reporting per zone)
• HOAs and small commercial properties where 4–32 zones need centralized management without a full Hunter Centralus / IMMS-2 build
• Field upgrades of existing P2C Pro-C installs — swap the front panel to HPC-FP, keep the existing wiring bay and station wiring

Specifications

• Model number: HPC-400 (Hunter SKU HPC400)
• Type: outdoor/indoor wall-mount modular Hydrawise Wi-Fi irrigation controller, plastic cabinet, 120 VAC plug-in with U.S. cord
• Base stations: 4
• Maximum stations (conventional wiring): 23
• Maximum stations (Hybrid EZ Decoder): 32 total (28 max if two-wire only)
• Expansion modules (sold separately): PCM-300 (3-station), PCM-900 (9-station)
• Programs: managed in the Hydrawise app (unlimited schedules per zone)
• Display: 2.4 in. color touchscreen
• Sensor inputs: 2 (SEN-1, SEN-2) — Hunter Clik or flow sensors
• Flow sensor support: HC-Flow Meter compatible (sold separately)
• P/MV output: 1 (pump start relay or master valve), 0.28 A @ 24 VAC
• Transformer input: 120 VAC, plug-in U.S. cord
• Transformer output: 24 VAC, 1.0 amp
• Controller maximum current draw: 0.8 A
• Station output: 0.56 amps per station @ 24 VAC
• Wi-Fi: 2.4 GHz only, 802.11 b/g/n, 20 MHz channel; WPA/WPA2 Personal, TLS, SSL
• Smart adjust: Hydrawise predictive watering (free for life)
• Cloud / app: Hydrawise iOS, Android, and web
• Cabinet rating: IP44 (outdoor/indoor wall mount)
• Approvals: UL, cUL, FCC, CE, UKCA, RCM, ISED
• Warranty: 2-year manufacturer warranty
• UPC: 611698459942

What’s in the Box

• One HPC-400 Hydrawise controller with 4-station base wiring bay and built-in Wi-Fi
• Pre-wired 120 VAC transformer with U.S. plug
• Wall-mount screws and anchors
• Printed quick-start guide (full Owner’s Manual at hunterirrigation.com)

Install Notes

Mount location: indoor or outdoor (IP44 rated). Wi-Fi signal must reach the cabinet at install — check the homeowner’s router coverage before final mount, or plan for a Wi-Fi extender on remote outbuildings.

Power: 120 VAC convenience outlet within reach of the pre-wired transformer cord.

Wi-Fi setup: Power up, tap Settings on the touchscreen, scan for the homeowner’s 2.4 GHz SSID, enter the WPA2 passphrase. Controller registers itself to the Hydrawise cloud automatically.

Account handoff: Set up the controller under the contractor’s Hydrawise account for the install + commissioning visit. At project handoff, transfer the controller to the homeowner’s new Hydrawise account from the contractor dashboard (one-click; no factory reset needed).

Valve wiring: 18 AWG multi-strand sprinkler wire from the valve box, common to the C terminal, station leads to stations 1–4.

Sensors: Hunter Clik sensors wire to SEN-1; an HC-Flow meter wires to SEN-2 (or vice versa — assign in the app).

Expansion: rotate the locking lever on the wiring bay to POWER OFF, slide in the PCM-300 (3-station) or PCM-900 (9-station) module, rotate back to POWER ON. Stations become live in the app immediately.

Compatible Accessories — Sold Separately

• PCM-300 — 3-station expansion module
• PCM-900 — 9-station expansion module
• HC-Flow Meter — in-line flow sensor for per-zone flow logging and leak alerts
• Mini-Clik / Rain-Clik / Wireless Rain-Clik / Wind-Clik / Freeze-Clik — rain, wind, and freeze shutoff sensors
• Soil-Clik — soil-moisture sensor
• EZ Decoder System (EZDM + EZ-1) — two-wire decoder retrofit for runs up to 32 stations
• HPC-FP — Hydrawise front-panel retrofit kit; upgrades an existing Pro-C P2C controller to HPC without replacing the wiring bay

HPC-400 vs. P2C-400 vs. XC-600i — Which One Should You Buy?

• XC-600i — fixed 6 stations, indoor cabinet only, 1 sensor input, no Wi-Fi, no expansion. Cheapest, simplest. Right when the property will never grow and the homeowner wants on-cabinet programming.
• P2C-400 Pro-C — 4-station base modular to 23 (32 with decoder), IP44 outdoor cabinet, 2 sensor inputs, dial-and-sticker programming, Wi-Fi upgrade path via add-on PC-WIFI module. Right for traditional installs where the contractor may or may not commit to Wi-Fi.
• HPC-400 Hydrawise Pro-C — same modular wiring bay as P2C-400, but with built-in Wi-Fi, color touchscreen, Hydrawise app, predictive watering, and flow-sensor support standard. Right when the homeowner wants smartphone control day-one, when the contractor manages multiple properties remotely, or when local water restrictions require a smart controller.

Stop by Garoppo’s to pick one up, or schedule local delivery within our service area.