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  • EcoNet Bulldog Valve Robot Matter over Wi-Fi EVC400-MW
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Last updated September 2026

EcoNet Bulldog Valve Robot Matter over Wi-Fi EVC400-MW

A retrofit actuator that turns an existing ball valve into a Matter over Wi-Fi shutoff, with no plumbing work and local leak-sensor control.

4.3
51 ratings
$215.00
As an Amazon Associate I earn from qualifying purchases
Launch Year: 2025

Model: EVC400-MW

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Our review

EcoNet Bulldog Valve Robot EVC400-MW Review: A Hub-Free Matter Shutoff for the Valve You Already Have

The verdict

The Bulldog EVC400-MW is a motor that clamps onto the quarter-turn ball valve already on your main line and closes it when a leak sensor trips or when you tell it to. It joins Matter over Wi-Fi with no proprietary hub, keeps working without an internet connection, and links up to 20 of EcoNet's own leak sensors. The trade-offs are an AC adapter with only an optional battery backup, no flow sensing or micro-leak testing of its own, and a Matter certification that describes the module as an on/off device, so it may show up as a switch rather than a valve in your app.

Best for
  • Homes with a ball valve on the main line
  • DIY installers
  • Matter smart homes
  • Hub-free setups

Pros

  • Retrofit actuator: fits over an existing ball valve with no plumbing work
  • Matter over Wi-Fi with no proprietary hub
  • Reachable from Google Home, Alexa, Apple Home, SmartThings and Home Assistant through Matter
  • Keeps working with no internet and links directly to up to 20 EcoNet leak sensors
  • Optional battery backup module and wired leak sensor kit

Cons

  • Needs AC power, and the battery backup is an extra
  • No built-in flow sensor or micro-leak test
  • May appear as a switch rather than a valve in Matter apps
  • Ball valves only, 3/4 inch to 1-1/2 inch with the included brackets

Who is the Bulldog EVC400-MW for?

It suits a home whose main shutoff is a quarter-turn ball valve with a handle, from 3/4 inch up to 1-1/2 inch pipe, and whose owner wants automatic shutoff without cutting into the plumbing. Because it mounts over the existing handle, installation is a bracket, a motor and a cable rather than a plumber's visit. It is a good match for a home that already runs on Matter, since the valve is commissioned like any other Matter accessory.

What stands out on paper

The valve joins the network over Matter on 2.4 GHz Wi-Fi, so no brand hub sits between it and the app. Google Home, Alexa, Apple Home, SmartThings and Home Assistant all reach it through Matter, each needing a Matter controller somewhere on the network, such as a speaker or a hub. It also works on its own with no internet connection, and it can pair directly with up to 20 EcoNet leak sensors, so a wet sensor closes the valve locally with no cloud in the way. A wired leak sensor kit is available for spots like a washing machine or water heater.

What to know before you buy

The motor runs from a 12 V adapter, so it stops in a power outage unless you add EcoNet's optional battery backup module, which the company says keeps the system going for up to 24 hours. It has no flow sensor and no micro-leak test, so it reacts to leak sensors and to your commands rather than detecting a burst pipe by itself. The Matter certification lists the control module with an on/off function, so Apple Home and other apps are likely to draw it as a switch or plug instead of a water valve. It fits ball valves only, not gate valves, and the kit's brackets cover 3/4 inch to 1-1/2 inch valves, with alternate kits for other sizes.

Is the Bulldog EVC400-MW worth it?

For a home that already has a ball valve on the main line, it is one of the simpler routes to a Matter-connected shutoff, and the local, hub-free operation is its strongest argument. Inline valves with built-in flow monitoring detect problems on their own and cost more to install, so the Bulldog makes sense when you want leak-sensor-driven shutoff and a quick retrofit rather than whole-house water analytics.

Frequently asked questions

Does the EcoNet Bulldog EVC400-MW need a hub?

No proprietary hub is needed. It connects over Wi-Fi and Matter, but Google Home, Alexa, Apple Home and SmartThings each need a Matter controller (a compatible speaker, display or hub) on the network to reach it.

Does it work without internet?

Yes. EcoNet says it works without a smart home hub or an internet connection and links directly to its own leak sensors, so a leak can close the valve with the network down.

What valves does the Bulldog EVC400-MW fit?

Quarter-turn ball valves with a handle, from 3/4 inch to 1-1/2 inch with the two brackets in the kit. Gate valves are not supported, and alternate mounting kits cover other sizes.

Does it keep working in a power outage?

Not by default, since it runs from an AC adapter. EcoNet sells an optional battery backup that keeps the system running for up to 24 hours.

Will it show up as a water valve in Apple Home or Google Home?

Possibly not. The Matter certification lists the control module with an on/off function, so apps may show it as a switch or plug, which still lets you open and close the valve.

Does it work with Home Assistant?

Yes, through Matter. Home Assistant is a Matter controller, and the valve can sit in several Matter apps at once.

At a glance

Summary

Everything this water shutoff valve supports, grouped by category.

Size & Materials
3 lb (1.36 kg)
Power
WiredBattery Backup (Sold separately)
Connectivity
2.4 GHz WiFiBluetooth
Integrations
Google HomeAlexaApple HomeKitSamsung SmartThingsHome AssistantMatter
Valve & Installation
Installation Type (Retrofit actuator)Pipe Sizes (3/4" to 1-1/2")
Leak Protection
Offline Auto ShutoffWired Leak Sensor (Sold separately)

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Company
EcoNet logo

EcoNet

4.3/ 5 avg ratingUnited States flagHeadquartered in United States

EcoNet Controls is a smart home water protection company founded in 2016, best known for the Bulldog valve robot, a motorized actuator that fits over an existing levered ball valve to shut off a home's main water line when a leak sensor trips. Its range also includes wireless leak sensors and a Matter-certified door lock. Models come in Z-Wave Plus, Wi-Fi and Matter over Wi-Fi versions that work with Alexa, Google Home, Apple Home and SmartThings, and the Matter version works on its own with no hub or internet connection.

Full specifications

Every spec, organized

Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.

Size & Materials
Weather Resistance

?

Dimensions

?

Weight

3 lb (1.36 kg)

The Amazon US listing gives an item weight of 3 pounds for the kit, which is the valve robot with its controller and power adapter.

Power
Wired

YES

Powered by a 12 V DC adapter that plugs into the control module. The motor connects to the module with a cable of about 9.8 ft (3 m).

Battery Type

-

Battery Life

-

Battery Backup

Sold separately

EcoNet sells an optional battery backup kit (12 V / 5 V, 3000 mAh) that keeps the system working for up to 24 hours in a power outage.

Connectivity
2.4 GHz WiFi

YES

Connects straight to the home 2.4 GHz Wi-Fi network with no hub, and the setup guide asks for a 2.4 GHz network.

Bluetooth

YES

Bluetooth is used to commission the valve into a smart home app. The CSA listing for the control module is Matter over Wi-Fi with Bluetooth.

Z-Wave

NO

Zigbee

NO

Thread Protocol

NO

Other

?

Integrations
Google Home

YES

EcoNet lists Google Home, with Nest Mini, Nest Hub and Nest Wifi Pro as compatible Matter controllers. Needs a Matter controller (hub or speaker) on the home network.

Alexa

YES

EcoNet lists Amazon Alexa, with Echo Dot (3rd gen and later), Echo Studio and Echo Show as compatible Matter controllers. Needs a Matter controller (hub or speaker) on the home network.

Apple HomeKit

YES

EcoNet lists Apple Home, with HomePod, HomePod mini and Apple TV as Matter controllers. Apple Home has no water valve device type, so the valve is expected to appear as a switch. Needs a Matter controller (hub or speaker) on the home network.

Samsung SmartThings

YES

Works through Matter. EcoNet lists SmartThings 2018 and 2015 hubs and the Aeotec Smart Home Hub as compatible Matter controllers.

Home Assistant

YES

Works through Matter. Home Assistant is a Matter controller, and Matter devices can be added to several controllers at once.

Matter

YES

Matter over Wi-Fi, certified by the CSA in January 2025 (Matter 1.0). The certification lists the control module as a WIFI Relay Controller Board with the On/Off cluster, so a Matter app may show the valve as a switch or plug rather than as a water valve.

Valve & Installation
Installation Type

Retrofit actuator

Pipe Sizes

3/4" to 1-1/2"

The kit includes two mounting brackets for ball valves from 3/4" to 1-1/2". Quarter-turn ball valves with a handle only, not gate valves. Alternate mounting kits cover other sizes, from 1/2" to 2".

Motor Torque

?

Valve Exercise

?

Leak Protection
Flow Sensor

NO

Micro-Leak Test

NO

Offline Auto Shutoff

YES

Works on its own without a smart home hub or an internet connection, and links up to 20 EcoNet leak sensors directly, so a wet sensor closes the valve with no cloud in between.

Wired Leak Sensor

Sold separately

Wired leak sensor kits are an optional accessory for spots such as a washing machine or water heater.

Freeze Alerts

?

Features
Automations

YES

Closes the valve automatically when a paired EcoNet leak sensor reports water, and Matter apps can add their own automations.

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