Netro · Spark-16
Ready to buy
The retained reference is $199 current U.S. direct price. The enclosure, Netro Whisperer sensor and pump relay are separate; confirm the included power supply for the U.S. configuration. Verify the wire map, valve and transformer load, signal path, local watering rules, backflow status and return or installer-service terms before purchase.
Current market
Each line carries its own check date because price, software, specifications, and product cycle do not age at the same speed.
The enclosure, Netro Whisperer sensor and pump relay are separate; confirm the included power supply for the U.S. configuration. Confirm current stock, authorized seller, tax, delivery, included accessories, return terms and installer labor before paying.
Spark-16 is the defended fit for a large conventional system when 16 built-in zones and basic local touch control matter more than modular expansion.
Other paths
These are not generic competitors. Each one represents a different way to buy into the same market.
Rachio
OpenSprinkler
What changed
Older observations stay in the ledger when the current view changes. That lets a buyer tell the difference between an old complaint, an active issue, and a problem that was corrected.
Spark 16-Zone Smart Sprinkler Controller was checked against exact manufacturer identity and support, current U.S. price, zone and wiring limits, weather, sensor, offline, privacy and service boundaries, independent analysis and bounded owner or installer reports.
Each amount stays tied to its source and capture date. Conflicting prices remain visible until the seller resolves them.
Current reference priceA structured timeline will begin with the next source capture
Owner experience
Owner and installer discussion returns to 16-zone value, touch controls, app setup, weather-source choice and indoor placement rather than a universal water or reliability result.
These are self-reported experiences from different properties, climates, soils, slopes, precipitation rates, pressure and flow conditions, valve loads, wiring ages, networks, apps, weather stations, subscription tiers, local rules and maintenance histories. They identify checks to run and do not prove water savings, plant health, leak detection, freeze protection, reliability, safety or code compliance.Exact-product owners discuss wiring, touch controls, weather station choice, schedules and support. Manufacturer-hosted reports are self-selected.
Confirm enclosure and relay needs, then select a representative weather source and retain a conservative local backup schedule.
1 evidence recordSources
The page separates what a source states directly from what we conclude across sources.
Netro identifies Spark-16 as a fixed 16-zone indoor controller with touch controls, cloud weather, multiple weather-source options and a local schedule backup.
$199 current U.S. direct price was retained for Spark-16. The enclosure, Netro Whisperer sensor and pump relay are separate; confirm the included power supply for the U.S. configuration
Sixteen stations plus a master-valve output are fixed; the controller does not accept station modules Netro builds zone schedules from plant, soil, sun and nozzle data, with physical controls and a local backup; the owner must still apply binding watering days and time windows The documented 24 VAC, 800 mA supply serves low-voltage valves; pump starting requires an isolated relay and outdoor use requires the specified protective enclosure Spark does not accept a traditional wired rain sensor; compatible Netro sensing and cloud inputs can inform watering but do not directly validate every valve or leak The app can select providers or personal weather stations, so source placement and data quality materially affect rain and ET decisions; freeze skips do not protect plumbing
Netro account, location, Wi-Fi, app and cloud storage underpin smart operation and carry privacy, permission and continuing-service boundaries A local backup schedule and physical touch controls remain when internet service fails, but remote changes and current weather stop; Netro advertises included cloud service without a recurring fee, not guaranteed perpetual availability Physical controls and local backup narrow outage risk, while proprietary app, weather and cloud availability remain vendor-dependent
WaterSense labels independently certified weather-based controllers against performance criteria. Weather adjustment remains dependent on correct installation, landscape inputs, representative data and local watering requirements.
EPA states that its water budget is not intended to schedule irrigation and that real-time local weather data are needed for scheduling decisions.
Professional guidance distinguishes on-site sensors, local weather stations and internet weather as different data paths whose selection and configuration affect schedule adjustment.
Cross-connection control and backflow prevention are distribution-system protections governed through local programs; an irrigation controller does not supply them.
Independent comparison includes Netro Spark and assesses installation, app control and weather features under disclosed home-use conditions.
Exact-product owners discuss wiring, touch controls, weather station choice, schedules and support. Manufacturer-hosted reports are self-selected.
Rachio 3 Smart Sprinkler Controller 8-Zone is the consumer app-first weather-aware control alternative at $199.99 current U.S. direct price.
OpenSprinkler v3.4 AC is the local-first open and highly expandable control alternative at $169 current U.S. configured reference.
Manufacturer identity, exact specifications or manual support, current U.S. price, independent editorial or professional evidence and bounded owner or installer evidence were checked on August 18, 2026. This desk covers complete, current U.S.-supported residential and light-property irrigation controllers where conventional programming, weather-aware cloud control, retrofit connectivity, modular expansion, two-wire topology or proprietary whole-yard design materially changes the purchase. It excludes faucet and hose-end timers, single-valve gadgets, standalone sensors, valves and solenoids, agricultural or municipal central control, unsupported systems, cosmetic bundles, marketplace-only products and station-count variants without a capability difference. Station count, expansion modules, transformer capacity, valve inrush, common wiring, master-valve and pump-start relays, flow-meter compatibility and sensor ports are exact-model limits. Water budgets and ET or forecast adjustments depend on landscape data, soil, slope, roots, precipitation rate, distribution uniformity and representative weather data. Utility and municipal watering days, drought rules and time windows must be checked and programmed locally because app rule databases can be incomplete. Freeze skips protect schedules, not pipes, valves or backflow assemblies; winterization is separate. Flow or leak alerts do not prove leak absence or stop every failure. The controller supplies no backflow protection and does not establish plumbing, electrical, permit, inspection or code compliance. Pumps, 120 or 240 V circuits and conduit work require the documented relay path and qualified installer or electrician. The controller cannot repair pressure, flow, coverage, valve, pipe, soil or root problems. App, account, cloud, weather provider, privacy, firmware, subscription and support availability can change. No controller guarantees water savings, plant health, freeze protection, leak prevention or code compliance.
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