Phyn · PHYPF001
Ready to buy
The retained reference is $299.99 current U.S. manufacturer-store reference. Confirm compatible 3/8-inch sink supplies, two free outlets, Wi-Fi and explicit alert-only operation. Commission sensing, closure, manual recovery, alarms and every configured notification before relying on the installation.
Current market
Each line carries its own check date because price, software, specifications, and product cycle do not age at the same speed.
Confirm compatible 3/8-inch sink supplies, two free outlets, Wi-Fi and explicit alert-only operation. Confirm current stock, seller authorization, tax, delivery, fittings, valves, sensors, hubs, backup power, subscription, labor, permits and return terms before paying.
Smart Water Assistant is the alert-only choice when the buyer wants hot and cold pressure-wave insight without cutting the main and accepts that a person or separate valve must stop water.
Other paths
These are not generic competitors. Each one represents a different way to buy into the same market.
Flume
Phyn
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.
Smart Water Assistant was checked against manufacturer identity and support, current U.S. price, sensing and valve hardware, pipe and installation fit, power, connection and service, independent evidence 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 evidence centers on under-sink hose fit, outlet access, fixture inference, alerts and wi-fi rather than a universal detection or prevention result.
These are self-reported or retailer- and manufacturer-presented experiences across different pipes, valves, pressure, water quality, sensors, power, networks, accounts, settings, installations, maintenance and leak events. They identify commissioning and service checks and do not establish standardized sensitivity, closure time, notification delivery, runtime, reliability, failure rate, flood or freeze prevention, safety, code approval, insurance eligibility, coverage or claim outcomes.Exact-product owners discuss supply-line installation, fixture inference, alerts and Wi-Fi. Self-selected store feedback cannot establish detection sensitivity or uptime.
Leak-test the new supply joints and write down who will physically close the main because an alert-only monitor is not a shutoff system.
1 evidence recordSources
The page separates what a source states directly from what we conclude across sources.
Phyn identifies PHYPF001 as a self-installed hot and cold pressure-sensor monitor that finds abnormal water events without a shutoff valve.
$299.99 current U.S. manufacturer-store reference was retained for PHYPF001. Confirm compatible 3/8-inch sink supplies, two free outlets, Wi-Fi and explicit alert-only operation
Two 3/8-inch under-sink pressure sensors infer events across hot and cold plumbing; there is no flow meter, floor-water sensor or valve, and roof, drain, sewer and some isolated plumbing events are outside its sensing path The system alerts and runs user-initiated plumbing checks but cannot close water automatically; the user, contact or plumber must locate the issue and operate a real valve Self-installation still requires safe dry access, compatible hoses, leak-free joints and a receptacle; it does not change backflow, PRV or freeze protection and should not be placed where wet electrical contact is plausible
Continuous AC is required and there is no included battery backup; a power outage removes sensing and alerts Wi-Fi, Phyn account, free app and cloud analytics supply alerts and fixture inference without a current subscription; home inventory, water events, address, contacts and preferred plumber are privacy and service dependencies Inspect supply joints, run plumbing checks, maintain app and Wi-Fi and respond to alerts; lost AC, cloud or notification, loose hoses, unsupported fixtures and alert-only delay remain
EPA guidance emphasizes finding and repairing the physical leak. Monitoring or shutoff equipment does not itself repair pipe, fixture, appliance, drain or water intrusion.
Backflow and cross-connection control are plumbing-system and public-health functions. A smart valve does not replace required devices, testing, permits or local authority decisions.
Connected-device users should review app permissions, accounts, data collection, security and deletion. A local valve function does not remove cloud-data and notification boundaries.
Flood coverage and claims depend on policy, peril, documentation and event facts. Owning a detector or automatic valve does not guarantee coverage, a discount or payment.
Independent coverage compares the under-sink alert-only Assistant with Phyn Plus and retains installation, sensing and no-valve differences.
Exact-product owners discuss supply-line installation, fixture inference, alerts and Wi-Fi. Self-selected store feedback cannot establish detection sensitivity or uptime.
Flume 2 Smart Home Water Monitor is the whole-home alert-only monitoring alternative at $269.00 current U.S. direct reference.
Phyn Plus Smart Water Assistant and Shutoff 2nd Gen is the in-line whole-home automatic shutoff alternative at $579.99 current U.S. manufacturer-store reference.
Manufacturer identity, exact current U.S. price, current specification, manual or support, independent editorial, test or professional-market evidence and bounded owner or installer evidence were checked on August 18, 2026. This desk covers supported complete residential whole-home flow or pressure monitors, motorized main shutoff systems, retrofit valve controllers with a coherent sensor branch, alert-only whole-home monitors and appliance-level automatic shutoff systems. It excludes loose sensors outside a coherent supported branch, standalone valves or actuators without the required controller, unsupported marketplace hardware, irrigation-only valves, commercial-only BMS, obsolete products and cosmetic multipacks or bundles. Sensor type and placement determine what can be observed. Flow, pressure-wave, utility-meter, clamp-on ultrasonic and direct-water sensors have different thresholds and blind spots. Valve size, connection, full-port geometry, direction, straight-run needs, pressure and temperature rating, potable-water approval, meter, PRV, well, treatment, irrigation, fire branch, thermal expansion, check valve and backflow placement are site facts. Alert-only systems never stop water. Automatic systems depend on configuration, learning, detector coverage, valve operation and available power. AC, batteries, backup modules and manual overrides have separate limits, and an internet-offline claim is not an electrical-outage claim. Apps, Wi-Fi, hubs, accounts, cloud analytics, subscriptions, monitored service, notifications, firmware and integrations have privacy, security, retention, outage, ownership-transfer and provider-continuity boundaries. Use qualified plumbing and electrical work and required permits, inspections and backflow review. Isolate electrical and water energy before service. Do not touch wet energized equipment. Hot water, contaminated floodwater, sewage, sewer backup, mold, frozen pipe, roof, drain, groundwater and water already stored in an appliance or tank can remain after a valve closes. Fix the source, dry and remediate materials and use emergency, utility, plumbing, electrical, public-health and insurance guidance. Product ownership or an insurer program does not guarantee a discount, eligibility, coverage or a claim. No sensor, valve, algorithm, test, alarm, app, cloud, battery, subscription, plumber, warranty or installation guarantees leak detection, automatic closure, flood or freeze prevention, notification, runtime, reliability, service life, mold prevention, property protection, code or permit approval, insurability, coverage or an insurance outcome.
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