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Water leak sensors · Zigbee / Z-Wave / Wi-FiAutomatic Wi-Fi shut-off valvesSmoke & carbon monoxide alarm kitsFree standard shipping on US orders over $12030-day returns
Water dripping from a faucet
Water leak sensors

Catch the leak before the flood.

Battery leak sensors for under the sink, behind the washer and next to the water heater. Zigbee, Z-Wave or plain Wi-Fi — your phone knows the second the floor gets wet.

Sensor 01 · Detect01/03 Water Leak Sensors
  • Zigbee / Z-Wave / Wi-Fi
  • Local siren + app alert
  • Floor probes & cable sensors
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Quarter-turn ball valve with a yellow lever
Automatic shut-off valves

Shut the water off. Automatically.

Wi-Fi ball-valve actuators mount on your main line and close it the moment a sensor reports a leak — even when nobody is home.

Valve 02 · Control02/03 Wi-Fi Shut-off Valves
  • Fits quarter-turn ball valves
  • Closes on leak alarm
  • Open / close from your phone
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Smoke alarm on a wooden slatted ceiling
Smoke & carbon monoxide

Hear it in every room.

Smoke and CO alarm kits for bedrooms, hallways and every floor — including interconnected sets where one alarm sounds them all.

Alarm 03 · Warn03/03 Smoke & CO Alarm Kits
  • Smoke, CO & combo alarms
  • Wireless interconnect
  • 10-year sealed battery options
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The Wisdomlyr range

Shop the essentials

Everything we sell does one of three jobs: notice water early, stop the water automatically, or warn everyone about smoke and carbon monoxide.

All 42 products →

How a protected home works

Detect. Alert. Shut off.

A leak under a sink can release gallons per hour. The goal is simple: find it in seconds, not when the ceiling below starts to stain.

01

Detect

A leak sensor on the floor closes its contacts the moment water bridges them. Smoke and CO alarms watch the air around the clock.

Sensor online
02

Alert

A loud local siren sounds and, on connected models, your phone gets a push notification through the app or your Zigbee / Z-Wave hub.

Leak in laundry
03

Shut off

A motorized actuator on your main ball valve turns it closed automatically, so a burst hose stays a puddle instead of a flood.

Main valve closed
Where to place sensors

Leaks start in four places

Put one sensor at each spot below and you cover the most common sources of water damage in a house or apartment.

Kitchen — typical leak sensor spot
Spot 01

Kitchen

Dishwasher hoses, sink supply lines and the fridge ice-maker line.

Bathroom — typical leak sensor spot
Spot 02

Bathroom

Toilet supply, vanity drain and the base of the tub or shower.

Laundry — typical leak sensor spot
Spot 03

Laundry

Washer fill hoses burst without warning — put a sensor behind it.

Water heater — typical leak sensor spot
Spot 04

Water heater

Tanks corrode from the inside. A sensor in the drain pan sees it first.

ProtocolZigbee

Low-power mesh for hubs like Home Assistant, SmartThings and Hubitat.

ProtocolZ-Wave

Sub-GHz mesh with long range through walls and floors.

ProtocolWi-Fi

No hub needed — connects straight to your router and phone app.

Always onLocal siren

Sounds on the spot, even if the internet is down.

Father and son relaxing on the sofa at home
Every levelSmoke and CO alarms belong on every floor of the home, including the basement.
Smoke & carbon monoxide

A kit for the whole house, not one hallway

Carbon monoxide has no smell and no color. Fire safety organizations recommend alarms in these places:

  • 01Inside every bedroom
  • 02Outside each sleeping area
  • 03On every level, including the basement
  • 04Interconnected, so one alarm sounds them all
Shop smoke & CO kits →
US shippingFree standard shipping over $120
30-day returnsUnused items in original packaging
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