Irrigation is the one category where buying "the bigger one" is usually the wrong move. A controller is sized by zones — not by lot size, not by price. Buy more zones than your property has and you paid for terminals that will never be wired. Buy fewer and you are splicing valves together and watering your lawn and your flower beds on the same schedule, which is how plants die.
This guide walks the five questions that actually determine which controller you need, then matches your answers to the models we carry. It takes about four minutes.
A note on brands
We carry Hunter and Rain Bird. They are the two names professional irrigation contractors have installed for forty years, and either one will outlast the house. The practical difference:
- Hunter runs the Hydrawise platform — the strongest app and weather-prediction side of the business. If you want to manage watering from your phone and have the system adjust itself to the forecast, Hunter is where we point you first.
- Rain Bird has the widest range, from a $249 six-zone box up to 60-station commercial platforms. If your situation is unusual — no power at the valve box, a remote property, a commercial site — Rain Bird almost certainly makes a controller for it.
We will tell you when the cheaper one is enough. That is the whole point of this page.
Part 1 — How many zones do you actually have?
A zone (also called a station) is one valve feeding one group of sprinkler heads that all run at the same time. You need a separate zone every time watering needs change.
Count a new zone for each of these:
- Front lawn
- Back lawn
- Each side yard
- Flower beds and shrubs (these need less water than turf — never share a zone with lawn)
- Any area in full shade vs. full sun
- Any slope (water runs off; it needs shorter, more frequent cycles)
- Drip lines for trees, planters or vegetable gardens
- Any area fed by a different water pressure or pipe size
If you already have a system in the ground: open the existing controller and count the wires landed on the terminal strip. That number is your zone count. Do not guess from the outside.
Typical counts by property, as a sanity check:
- Small city lot, lawn only — 2 to 4 zones
- Standard suburban quarter-acre with beds — 4 to 6 zones
- Half-acre with front, back, sides and landscaping — 6 to 8 zones
- One acre, or a quarter-acre with heavy landscaping and drip — 8 to 12 zones
- Multi-acre, estate, or a property with outbuildings — 12 to 24 zones
- HOA common areas, campus, sports field, golf — 24 to 60+ stations
Always buy at least two zones of headroom if you expect to add beds, a garden, or a second drip line later. Expanding a modular controller later costs $199 to $899. Replacing a maxed-out fixed controller costs the whole unit.
Part 2 — Controller only, or a complete system?
This is the question that changes your budget by thousands of dollars, so settle it before you look at any product.
You need a controller only (a few hundred dollars) if there are already sprinkler heads, valves and pipe in the ground and you are replacing the box on the wall. This covers most people. An old controller died, or you want app control, or you bought a house with a system from 2004.
You need a complete system ($2,699 to $16,999) if there is nothing in the ground yet. A complete package is the controller plus valves, heads, wire, sensors and the install hardware for a property of that size.
Our complete systems:
- Rain Bird 6-Zone WiFi Landscape Control Package — $2,699. The entry point for a full residential install.
- Hunter Hydrawise WiFi Ecosystem — 6 zone $3,499 · 12 zone $4,299 · 24 zone $5,999. Best value per zone at the larger sizes, and the strongest app.
- Hunter Pro-HC Complete System — 6 zone $3,999 · 12 zone $5,999 · 24 zone $9,999. Professional-grade hardware throughout.
- Hunter XC Hybrid Remote Property System — 6 zone $3,999 · 12 zone $5,999. For properties with no reliable power at the controller location.
- Commercial 2-Wire Infrastructure Package — $16,999. Full Rain Bird two-wire build for commercial sites.
Part 3 — Where will the controller be mounted?
Indoor controllers are cheaper and last longer because nothing is attacking them. Outdoor controllers have sealed, weather-rated enclosures and cost more for the same station count.
- Garage, basement, or utility room — buy an indoor unit. You will pay less for the same capability.
- Exterior wall, pump house, or valve box — you need an outdoor-rated enclosure. Do not mount an indoor controller outside under an eave and hope. Texas summers and winter freezes will find it.
- Unsure, or you may relocate it — buy an indoor/outdoor hybrid. Hunter's XC Hybrid line is rated for both.
Part 4 — Is there 120V power where the controller goes?
This is the question people skip, and it is the one that sends controllers back.
If yes — any controller on this page works. Move on.
If no — and this is common at valve boxes, remote pastures, medians, community entrances and detached outbuildings — you need a battery-operated controller. Running a new electrical circuit to a valve box typically costs more than the controller.
Battery and Bluetooth controllers we carry:
- Rain Bird ESPBAT-BT Bluetooth — 1 zone $399 · 2 zone $549 · 4 zone $649 · 6 zone $699. Program from your phone standing at the box.
- Rain Bird ESP-9V Remote — $499. Battery powered, built for drip and remote installs.
- Rain Bird TBOS Waterproof — 1 zone $549. IP68 rated; it can sit in a valve box that floods.
- Rain Bird TBOS-BT Commercial — 2 zone $699. For medians, roundabouts and public landscape.
- Hunter XC Hybrid — indoor/outdoor 6 station $799 · 12 station $999 · outdoor-rated 6 station $1,499 · 12 station $1,999. Runs on battery or AC, which is why it costs more.
Part 5 — Do you want app and weather control?
Smart, weather-aware watering genuinely cuts water bills — the controller skips a cycle when rain is forecast instead of running sprinklers in a downpour. But it is not free, and it is not mandatory.
Skip WiFi if the controller is in a garage you walk past daily, your watering needs rarely change, and you would rather put the money into better heads. A Rain Bird ESP-RZX 6-zone at $249 waters a yard perfectly well.
Get WiFi if you travel, manage more than one property, are on water restrictions, or simply want to stop thinking about it.
Already own a Rain Bird controller? The LNK2 WiFi Module at $399 adds app control to many existing units. Check your model before buying a whole new controller.
Part 6 — Match your zone count to a controller
Now put it together. Find your zone count, then pick the row that matches your power and mounting answers.
1 to 2 zones
Drip systems, a single planting bed, a median, one small lawn.
- Rain Bird ESPBAT-BT Bluetooth 1 Zone — $399 (battery)
- Rain Bird TBOS Waterproof 1 Zone — $549 (battery, survives a flooded box)
- Rain Bird ESPBAT-BT Bluetooth 2 Zone — $549 (battery)
- Rain Bird TBOS-BT Commercial 2 Zone — $699 (battery, commercial)
3 to 4 zones
Small city lot, lawn plus one bed.
- Rain Bird ESP-TM2 4 Zone — $449
- Rain Bird ESP-Me WiFi 4 Zone Expandable — $499 (WiFi, grows later — the smart buy if you might add zones)
- Rain Bird ESPBAT-BT Bluetooth 4 Zone — $649 (battery)
- Hunter Pro-C P2C400 4 Station — $699 (outdoor)
- Hunter HPC Modular 4 Station with Hydrawise — $899 (WiFi, modular)
5 to 6 zones
The most common residential size. A standard suburban lot with front, back, sides and beds.
- Rain Bird ESP-RZX 6 Zone — $249. The honest budget answer. No WiFi, waters a yard correctly, lasts for years.
- Rain Bird ESP-TM2 6 Zone — $499
- Rain Bird ESPBAT-BT Bluetooth 6 Zone — $699 (battery)
- Hunter Pro-C Fixed Outdoor 6 Station — $749 (outdoor)
- Hunter XC Hybrid Indoor/Outdoor 6 Station — $799 (battery or AC)
- Hunter HC Modular Indoor 6 Station with Hydrawise — $899 (WiFi)
- Hunter Pro-HC Fixed Indoor 6 Station with Hydrawise — $999 (WiFi, pro-grade)
7 to 8 zones
Half-acre with real landscaping, or a quarter-acre with drip lines.
- Rain Bird ESP-TM2 8 Zone — $549
- Rain Bird RC2 Smart WiFi 8 Zone — $599 (WiFi — best value smart controller at this size)
- Hunter X-Core Fixed Outdoor 8 Station — $699 (outdoor)
9 to 14 zones
One acre, or a heavily landscaped half-acre.
- Rain Bird ESP-TM2 12 Zone — $799
- Hunter X2 WiFi-Ready Indoor/Outdoor 14 Station — $899 (WiFi-ready, indoor or outdoor)
- Hunter Pro-C Fixed Indoor 12 Station — $899
- Hunter XC Hybrid Indoor/Outdoor 12 Station — $999 (battery or AC)
- Hunter HC Modular Indoor 12 Station with Hydrawise — $1,099 (WiFi)
- Hunter Pro-HC Fixed Indoor 12 Station with Hydrawise — $1,199 (WiFi, pro-grade)
- Hunter XC Hybrid Fixed Outdoor 12 Station — $1,999 (battery, outdoor-rated)
15 to 24 zones
Estate properties, small HOA common areas, properties with outbuildings.
- Rain Bird ESP-LXME Advanced 12 Station, expandable to 48 — $1,899 (start at 12, grow as you build out)
- Rain Bird ESP-LXME Advanced Flow 12 Station, expandable to 48 — $2,199 (adds leak detection and flow monitoring — worth it on a large property where a broken line can run for days unnoticed)
- Hunter Pro-HC Fixed Indoor 24 Station with Hydrawise — $1,899 (WiFi)
25 stations and up — commercial, campus, golf, municipal
At this size you are buying infrastructure, not a box. Two-wire and decoder systems run a single wire path around the property instead of a home run to every valve, which is the only practical way to wire a large site.
- Rain Bird ESP-LXD Commercial Decoder Platform, 50 station — $5,499
- Rain Bird ESP-LX IVM Pro Commercial Control Center — $5,999
- Rain Bird ESP-SAT Enterprise Satellite Controller, 24 station — $7,999
- Rain Bird 60 Station IVM Estate & Commercial Platform — $12,999
- Rain Bird Commercial 2-Wire Automation Infrastructure Package — $16,999 (complete build)
Commercial projects should not be ordered off a page. Email us the site plan and station count and we will spec it.
Part 7 — Sensors, expansion and add-ons
Rain and freeze sensor — the one upgrade almost everyone should buy. It stops the system from watering during rain or a freeze. Many municipalities require one. Rain Bird Wireless Rain & Freeze Sensor — $349.
Flow monitoring — $399. Detects a broken line or stuck valve and shuts the zone down. On a large property this pays for itself the first time a line breaks while you are away.
Expansion modules — only for modular controllers. Check that your controller accepts modules before ordering.
- Rain Bird 3-Zone Expansion Module — $199
- Rain Bird ESP-SM6 6-Zone Expansion Module — $399
- Hunter PCM-900 9 Station Expansion — $699
- Hunter 16-Station Expansion Output Module — $799
- Hunter PCM-1600 Expansion Kit for Pro-C — $899
- Rain Bird ESP-LX Commercial Expansion — 8 station $599 · 12 station $899
Connectivity
- Rain Bird LNK2 WiFi Module — $399 (adds app control to an existing Rain Bird controller)
- Rain Bird IQ Cellular Platform — $1,199 (remote sites with no WiFi)
Services
- Custom Irrigation Layout Plan — $199. Send us your property and we map zones, head placement and coverage before you buy anything. If you are installing from scratch, buy this first.
- Priority Setup Support — $79. Scheduled help getting the controller programmed and talking to your phone.
Still not sure?
Email us at support@lawnbotsystems.com with:
- Your zone count — or a photo of the wires landed in your existing controller
- Where the controller will be mounted, and whether there is power there
- Whether there is already pipe and heads in the ground
- Whether you want app control
We will tell you exactly which model to buy, including when the cheapest one on the list is the right answer.