valve

Dome Water Main Shut-Off Valve (DMWV1)

mid local: excellent Z-Wave

Price: $83 verified Sep 15, 2026
HA fit: good
Works offline: yes
Setup: moderate
Hub needed: yes

Affiliate link - I may earn a commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases; some links go to other retailers with the same arrangement.

Dome Home Automation Water Shut-Off Valve - Clamps onto an existing quarter-turn ball valve for local Z-Wave water shutoff

Quick verdict

The Dome valve is the simplest path to Z-Wave water shutoff. It clamps onto your existing quarter-turn valve, no plumbing required, and gives you fully local control through Home Assistant. Pair it with Z-Wave leak sensors and you have automatic shutoff with zero cloud dependency. The plastic build quality is the main concern for long-term reliability.

Standout: No-plumber-required installation clamps directly onto existing quarter-turn ball valves for fully local Z-Wave water shutoff control.

Notes last checked May 31, 2026.

Compatibility snapshot

Home Assistant good

Apple Home none

Google Home none

Alexa none

Works offline yes

Setup moderate

Extra hub needed yes

Power plug-in

Local control facts

Home Assistant: zwave_js integration, Local Push (home-assistant.io, checked Sep 10, 2026)
Z-Wave JS: in the device database, listed as Elexa Consumer Products Inc. DMWV1 (Dome Water Main Shut Off) (github.com, checked Sep 10, 2026)

Why it stands out

fully local Z-Wave control with no cloud dependency
clamps onto existing quarter-turn ball valves without any plumbing modification
pairs well with Z-Wave water leak sensors for automated shutoff in Home Assistant

Reasons to hesitate

requires a Z-Wave hub or coordinator
motor can be slow to actuate compared to professional motorized ball valves
plastic construction raises durability concerns for a device clamped to a water valve long-term

Best for

Z-Wave Home Assistant users who want fully local automatic water shutoff paired with leak sensors
DIYers who want to add smart water control without calling a plumber

Avoid if

you want a professional-grade solution with water monitoring and pressure sensing
you do not already have a Z-Wave coordinator in your smart home setup

Privacy and local-control notes

Fully local Z-Wave device with no cloud component. All communication goes through your Z-Wave hub on your local network.

Home Assistant support: supported · integration path: Z-Wave.

Buying reality check

Price notes: Mid-range pricing. Requires a Z-Wave coordinator sold separately. Much cheaper than professional whole-home water monitoring systems.

One verified price read so far: $83 at amazon on Sep 15, 2026.

Compare side by side: see valve comparisons →

Verified against

The compatibility notes above have not been through the source audit yet. The manufacturer's page is here; the notes were last checked May 31, 2026.

Spotted something wrong? Report an error on this page and I will check it against the source and fix it.

Buying guide for this category

No buying guide for valves yet. The compare table lines up every valve in the catalog on the same columns, which is the next best thing.

Compare valves →

Articles that mention this product

Best Z-Wave water valves for automatic shutoff

The Zooz ZAC36 Titan and Dome DMWV1 are the two clamp-on Z-Wave water shut-off valves worth buying - what each one fits, plus the pricier Greenfield.

Read article →

Best Zigbee leak sensors with shutoff integration

Real Zigbee water leak sensors paired with Zigbee/Z-Wave shutoff valves for fully local leak protection in Home Assistant.

Read article →

How to monitor aging parents with Home Assistant

The local sensors that actually help with an aging parent: motion and presence, door contacts, environment, leak and smoke, plus alerts that work offline.

Read article →