Stop water damage
before it starts.
Smart sensors and an automatic valve that catch a leak and shut your water off — before it floods your home.
3,412 backers · goal $50,000
5,900
products backed
1,240
devices live
4.2M gal
water saved
The Sensor
A coin-sized wireless sensor that sits wherever water can go wrong — and radios the gateway the instant it senses moisture.
- Detects the first drop
- Temp + humidity sensing
- 3-year battery
- 915MHz LoRa radio
Everywhere water can go wrong
How it works
Three devices, one job: catch the leak and stop the water before you'd ever notice.
1. Detect
A sensor senses the first drop of water — under a sink, behind a toilet, at the heater.
2. Confirm & alert
It radios the gateway, which confirms the leak and pushes an alert to your phone in seconds.
3. Shut off
The valve closes your main line automatically — before a drip becomes a flood.
The Devices
The sensor watches. The gateway connects. The valve acts.
Gateway
The brain of the system. It listens to every sensor in your home over long-range radio, then relays what it hears to the cloud — and pushes an alert to your phone before you'd ever notice something was wrong.
- Talks to up to 32 sensors at once
- Cellular backup — still works if your WiFi goes down
- Push, SMS, and email alerts, your choice
- Plug-and-play setup from your phone
- Uplink
- WiFi, cellular backup
- Sensor capacity
- Up to 32 devices
- Alerting
- Push · SMS · email
- Power
- USB-C, battery backup
Shut-off Valve
This is what makes Argus more than a smoke alarm for water. It mounts on your main line and physically closes the water the instant a leak is confirmed — whether you're asleep upstairs or on the other side of the world.
- Closes your main line in under 3 seconds
- Fits standard 3/4" and 1" lines — no plumber required
- One-tap manual shut-off from the app, anytime
- Auto mode arms itself the moment it's installed
- Fits
- 3/4" and 1" main lines
- Close time
- Under 3 seconds
- Control
- Auto, app, or manual
- Install
- No plumber required
The Platform
Hardware catches the leak. The Argus platform decides what to do about it — instantly, automatically, and with no monthly fee.
Real-time monitoring
Every sensor reports status, temperature, and signal to one live dashboard, second by second.
Instant multi-channel alerts
Push, SMS, and email the moment moisture is detected — with the exact room and time.
Automatic shut-off
A confirmed leak closes your main line in under three seconds, with no action needed from you.
Works when Wi-Fi doesn't
Cellular backup keeps alerts and shut-off flowing even when a burst pipe kills your internet.
Scales to the whole home
One gateway manages up to 32 sensors across every floor, tank, and appliance.
No subscription, ever
The platform, alerts, and automations are yours for life — no monthly fee to stay protected.
Leak detected — Basement
Valve closed automatically · 14:32
Kitchen sink
Water heater
Basement
Laundry
Your whole home, on one screen.
Every sensor's status, battery, and signal in a single dashboard. The moment a leak is confirmed, Argus shuts the water off and tells you exactly where.
- Live status, battery, and signal for every sensor
- Instant push, SMS, and email alerts
- One-tap manual shut-off from anywhere
- Freeze and low-battery early warnings
Founder Pricing
These are the reward tiers going live on Kickstarter. Founder pricing won't return once the campaign closes.
Early Bird
- 1 Leak Sensor
- 1 Gateway
- Lifetime app access
Limited to the first 200
Est. delivery Q3 2026
Whole Home
- 4 Leak Sensors
- 1 Gateway
- 1 Shut-off Valve
- Lifetime app access
- Priority shipping
Est. delivery Q3 2026
Full Protection
- 8 Leak Sensors
- 1 Gateway
- 1 Shut-off Valve
- Lifetime app access
- Priority shipping
- Extended 3-yr warranty
Est. delivery Q3 2026
No charge until the campaign funds. Cancel anytime before launch.
Timeline
The roadmap from campaign to your doorstep.
Reservations open
Lock in founder pricing before the campaign goes live.
Kickstarter launch
Campaign opens with early-bird tiers and stretch goals.
Production tooling
Final DVT hardware, certification, and manufacturing ramp.
Backers ship first
Founding backers receive their kits ahead of retail.
Tech Specs
Built on proven long-range radio, with no gateway lock-in and no subscription.
Leak Sensor
- Range
- Up to 1,600 ft, line of sight
- Battery life
- Up to 3 years
- Sensing
- Contact leak · temp · humidity
- Setup
- Peel, stick, pair — under 2 min
Gateway
- Uplink
- WiFi, cellular backup
- Sensor capacity
- Up to 32 devices
- Alerting
- Push · SMS · email
- Power
- USB-C, battery backup
Shut-off Valve
- Fits
- 3/4" and 1" main lines
- Close time
- Under 3 seconds
- Control
- Auto, app, or manual
- Install
- No plumber required
FAQ
Everything you need to know before the campaign goes live.
A water meter only watches the main line, so it can't tell you which fixture is leaking or catch slow drips under a sink. Argus sensors sit at the source — every toilet, tank, and appliance — and the shut-off valve stops the water automatically instead of just alerting you after the fact.
No. Sensors talk to the gateway over long-range LoRa radio, not Wi-Fi — so they work in basements, under cabinets, and anywhere a phone signal can't reach. Only the gateway itself needs a network connection.
Yes. Sensors peel, stick, and pair with the app in under two minutes. The shut-off valve is designed for a standard 3/4" or 1" main line with basic tools — no plumber required for most homes.
The gateway keeps a cellular backup connection, so alerts and shut-off commands still make it through even if your home internet is out — exactly the scenario a burst pipe tends to cause.
Reward tiers and estimated ship dates will be posted on the Kickstarter page at launch. Join the list below and you'll be the first to know the moment it goes live.
Your home shouldn't have to flood first.
Reserve founder pricing and we'll email you the moment the campaign goes live — plus a heads-up before early-bird spots run out.
One email at launch. No spam, ever.