The Smart Device Compare comparison

First Alert L5 WiFi Water Leak Shutoff Valve vs YoLink Valve Controller 2 with EVO Valve Operator

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Key differences between First Alert L5 WiFi Water Leak Shutoff Valve and YoLink Valve Controller 2 with EVO Valve Operator

A summary of selected recorded differences between these water shutoff valves. Check the full specification table below for details and conditions.

Feature differences among your selected devices

2.4 GHz Wi-Fi (connectivity): First Alert L5 WiFi Water Leak Shutoff Valve — Yes (802.11 b/g/n at 2.4 GHz.); YoLink Valve Controller 2 with EVO Valve Operator — No.
Bluetooth (connectivity): First Alert L5 WiFi Water Leak Shutoff Valve — Yes (Bluetooth 4.1; a long press of the power button starts Bluetooth broadcasting for setup.); YoLink Valve Controller 2 with EVO Valve Operator — No.
Wired Leak Sensor (leak protection): First Alert L5 WiFi Water Leak Shutoff Valve — Yes (Includes a 5 ft sensing cable plugged into the actuator that shuts the water off when it detects a leak; more cables can be linked to extend coverage to 500 ft.); YoLink Valve Controller 2 with EVO Valve Operator — No.
Battery Backup (power): First Alert L5 WiFi Water Leak Shutoff Valve — No (No battery is listed. During a power outage the manual says to unplug the actuator and use its emergency handle; that handle does not sync the valve state with the app.); YoLink Valve Controller 2 with EVO Valve Operator — Yes (When the controller runs on its adapter, the four AA batteries stay in as backup during a power outage.).

Specifications to check side by side

Other (connectivity): First Alert L5 WiFi Water Leak Shutoff Valve — No; YoLink Valve Controller 2 with EVO Valve Operator — LoRa (YoLink hub required) (Up to 1/4 mile in open air to the YoLink hub.).
Alexa (integrations): First Alert L5 WiFi Water Leak Shutoff Valve — No (The manufacturer documents control only through the First Alert app; no third-party platform is claimed.); YoLink Valve Controller 2 with EVO Valve Operator — YoLink Hub required.
Google Home (integrations): First Alert L5 WiFi Water Leak Shutoff Valve — No (The manufacturer documents control only through the First Alert app; no third-party platform is claimed.); YoLink Valve Controller 2 with EVO Valve Operator — YoLink Hub required.
Freeze Alerts (leak protection): First Alert L5 WiFi Water Leak Shutoff Valve — Sold separately (The valve has no temperature sensor of its own; freeze monitoring comes from a First Alert L1 WiFi Water Leak and Freeze Detector paired with it.); YoLink Valve Controller 2 with EVO Valve Operator — No.

Information still to confirm

6 of 26 comparison fields lack a resolved value for at least one selected device. Missing information is not evidence that a feature is absent.
Check the full table and manufacturer documentation before ruling out a device.

These observations are derived from recorded catalog data and have not all been independently verified. Confirm details with the manufacturer before purchasing.

Compare capabilities, compatibility and setup requirements.

Option 1 · First Alert

First Alert L5 WiFi Water Leak Shutoff Valve

Last updated October 2026

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Option 2 · YoLink

YoLink Valve Controller 2 with EVO Valve Operator

Last updated October 2026

View full device profile

What the catalog tells us

Understand the tradeoffs.

These counts describe the available data, not a quality score. More features do not automatically make a better device.

10differences with recorded values for every device

6rows with missing or unspecified information

Your priorities, side by side

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Mark the specifications you care about. Open manufacturer sources for verification scope; fields without citations remain catalog data. Expand notes for other qualifications.

Differences onlyMy priorities (0)

Showing 26 of 26 rows. “Not recorded” does not mean “No”.

Reading layout

Connectivity

2.4 GHz Wi-Fi

First Alert L5 WiFi Water Leak Shutoff Valve: Yes
Catalog note
802.11 b/g/n at 2.4 GHz.
YoLink Valve Controller 2 with EVO Valve Operator: No

Bluetooth

First Alert L5 WiFi Water Leak Shutoff Valve: Yes
Catalog note
Bluetooth 4.1; a long press of the power button starts Bluetooth broadcasting for setup.
YoLink Valve Controller 2 with EVO Valve Operator: No

Other

First Alert L5 WiFi Water Leak Shutoff Valve: No
YoLink Valve Controller 2 with EVO Valve Operator: LoRa (YoLink hub required)
Catalog note
Up to 1/4 mile in open air to the YoLink hub.

Thread

First Alert L5 WiFi Water Leak Shutoff Valve: No
YoLink Valve Controller 2 with EVO Valve Operator: No

Z Wave

First Alert L5 WiFi Water Leak Shutoff Valve: No
YoLink Valve Controller 2 with EVO Valve Operator: No

Zigbee

First Alert L5 WiFi Water Leak Shutoff Valve: No
YoLink Valve Controller 2 with EVO Valve Operator: No

Features

Automations

First Alert L5 WiFi Water Leak Shutoff Valve: Yes
Catalog note
Up to 30 First Alert WiFi leak detectors can be paired, and you choose which of them trigger the automatic shutoff in the app's Leak Protection settings.
YoLink Valve Controller 2 with EVO Valve Operator: Yes
Catalog note
Schedules, app control and automations with YoLink leak sensors and other devices.

Integrations

Alexa

First Alert L5 WiFi Water Leak Shutoff Valve: No
Catalog note
The manufacturer documents control only through the First Alert app; no third-party platform is claimed.
YoLink Valve Controller 2 with EVO Valve Operator: YoLink Hub required

Apple Home

First Alert L5 WiFi Water Leak Shutoff Valve: No
Catalog note
The manufacturer documents control only through the First Alert app; no third-party platform is claimed.
YoLink Valve Controller 2 with EVO Valve Operator: No
Catalog note
YoLink's compatibility list for the valve controllers is Alexa, Google, IFTTT and Home Assistant, with no Apple Home path.

Google Home

First Alert L5 WiFi Water Leak Shutoff Valve: No
Catalog note
The manufacturer documents control only through the First Alert app; no third-party platform is claimed.
YoLink Valve Controller 2 with EVO Valve Operator: YoLink Hub required

Home Assistant

First Alert L5 WiFi Water Leak Shutoff Valve: Not recorded
YoLink Valve Controller 2 with EVO Valve Operator: Yes
Catalog note
The official Home Assistant YoLink integration lists this controller as YS5003-UC (Water Valve Controller 2).

Matter

First Alert L5 WiFi Water Leak Shutoff Valve: No
Catalog note
The specifications list Wi-Fi 2.4 GHz and Bluetooth 4.1 only, with no Matter support.
YoLink Valve Controller 2 with EVO Valve Operator: No

SmartThings

First Alert L5 WiFi Water Leak Shutoff Valve: No
Catalog note
The manufacturer documents control only through the First Alert app; no third-party platform is claimed.
YoLink Valve Controller 2 with EVO Valve Operator: No
Catalog note
SmartThings is not on YoLink's compatibility list for this product.

Leak Protection

Flow Sensor

First Alert L5 WiFi Water Leak Shutoff Valve: No
YoLink Valve Controller 2 with EVO Valve Operator: No

Freeze Alerts

First Alert L5 WiFi Water Leak Shutoff Valve: Sold separately
Catalog note
The valve has no temperature sensor of its own; freeze monitoring comes from a First Alert L1 WiFi Water Leak and Freeze Detector paired with it.
YoLink Valve Controller 2 with EVO Valve Operator: No

Micro Leak Test

First Alert L5 WiFi Water Leak Shutoff Valve: No
YoLink Valve Controller 2 with EVO Valve Operator: No

Offline Auto Shutoff

First Alert L5 WiFi Water Leak Shutoff Valve: Not recorded
YoLink Valve Controller 2 with EVO Valve Operator: Yes
Catalog note
Once paired device-to-device, a YoLink water leak sensor closes the valve directly over LoRa, with no internet, no app and no AC power; the hub and internet are only needed for the app and notifications.

Wired Leak Sensor

First Alert L5 WiFi Water Leak Shutoff Valve: Yes
Catalog note
Includes a 5 ft sensing cable plugged into the actuator that shuts the water off when it detects a leak; more cables can be linked to extend coverage to 500 ft.
YoLink Valve Controller 2 with EVO Valve Operator: No

Power

Battery Backup

First Alert L5 WiFi Water Leak Shutoff Valve: No
Catalog note
No battery is listed. During a power outage the manual says to unplug the actuator and use its emergency handle; that handle does not sync the valve state with the app.
YoLink Valve Controller 2 with EVO Valve Operator: Yes
Catalog note
When the controller runs on its adapter, the four AA batteries stay in as backup during a power outage.

Battery Life

First Alert L5 WiFi Water Leak Shutoff Valve: Not applicable / unspecified
YoLink Valve Controller 2 with EVO Valve Operator: 2 years
Catalog note
YoLink quotes 2+ years between battery changes in battery-only mode.

Battery Type

First Alert L5 WiFi Water Leak Shutoff Valve: Not applicable / unspecified
YoLink Valve Controller 2 with EVO Valve Operator: 4x AA

Wired

First Alert L5 WiFi Water Leak Shutoff Valve: Yes
Catalog note
Powered by a 15 V adapter (100-240 V input) with a 10 ft cord.
YoLink Valve Controller 2 with EVO Valve Operator: Yes
Catalog note
The controller can run from the included plug-in 12 V adapter instead of, or together with, its batteries.

Valve

Installation Type

First Alert L5 WiFi Water Leak Shutoff Valve: Inline valve
Catalog note
Ships with a lead-free NPT ball valve that is plumbed into the main line, after the main shutoff and the pressure reducing valve; the actuator then clips onto it.
YoLink Valve Controller 2 with EVO Valve Operator: Retrofit actuator

Motor Torque

First Alert L5 WiFi Water Leak Shutoff Valve: 5 N·m
Catalog note
Rated torque 5 N·m (44.25 in-lbs), breakaway torque 6.5 N·m, runtime under 10 seconds for a 90 degree turn.
YoLink Valve Controller 2 with EVO Valve Operator: Not recorded

Pipe Sizes

First Alert L5 WiFi Water Leak Shutoff Valve: 1/2", 3/4", 1", 1-1/4"
Catalog note
Sold as VWS02Y-1/2, VWS02Y-3/4, VWS02Y-1 and VWS02Y-11/4, each with its own NPT ball valve.
YoLink Valve Controller 2 with EVO Valve Operator: 1/2" to 2"
Catalog note
YoLink recommends the EVO for ball valves of 1/2", 3/4", 1", 1-1/4", 1-1/2" and 2", attached directly to the valve shaft with a direct-drive adapter; it installs in about 15 minutes with a Phillips screwdriver and also fits PVC ball valves once the handle is removed.

Valve Exercise

First Alert L5 WiFi Water Leak Shutoff Valve: Yes
Catalog note
A configurable maintenance cycle closes and reopens the valve on a schedule; First Alert recommends at least every 2 months. It does not run while the valve is closed.
YoLink Valve Controller 2 with EVO Valve Operator: Not recorded

Specifications for First Alert L5 WiFi Water Leak Shutoff Valve versus YoLink Valve Controller 2 with EVO Valve Operator
Specification	First Alert L5 WiFi Water Leak Shutoff Valve	YoLink Valve Controller 2 with EVO Valve Operator
Connectivity
2.4 GHz Wi-Fi	Yes Catalog note 802.11 b/g/n at 2.4 GHz.	No
Bluetooth	Yes Catalog note Bluetooth 4.1; a long press of the power button starts Bluetooth broadcasting for setup.	No
Other	No	LoRa (YoLink hub required) Catalog note Up to 1/4 mile in open air to the YoLink hub.
Thread	No	No
Z Wave	No	No
Zigbee	No	No
Features
Automations	Yes Catalog note Up to 30 First Alert WiFi leak detectors can be paired, and you choose which of them trigger the automatic shutoff in the app's Leak Protection settings.	Yes Catalog note Schedules, app control and automations with YoLink leak sensors and other devices.
Integrations
Alexa	No Catalog note The manufacturer documents control only through the First Alert app; no third-party platform is claimed.	YoLink Hub required
Apple Home	No Catalog note The manufacturer documents control only through the First Alert app; no third-party platform is claimed.	No Catalog note YoLink's compatibility list for the valve controllers is Alexa, Google, IFTTT and Home Assistant, with no Apple Home path.
Google Home	No Catalog note The manufacturer documents control only through the First Alert app; no third-party platform is claimed.	YoLink Hub required
Home Assistant	Not recorded	Yes Catalog note The official Home Assistant YoLink integration lists this controller as YS5003-UC (Water Valve Controller 2).
Matter	No Catalog note The specifications list Wi-Fi 2.4 GHz and Bluetooth 4.1 only, with no Matter support.	No
SmartThings	No Catalog note The manufacturer documents control only through the First Alert app; no third-party platform is claimed.	No Catalog note SmartThings is not on YoLink's compatibility list for this product.
Leak Protection
Flow Sensor	No	No
Freeze Alerts	Sold separately Catalog note The valve has no temperature sensor of its own; freeze monitoring comes from a First Alert L1 WiFi Water Leak and Freeze Detector paired with it.	No
Micro Leak Test	No	No
Offline Auto Shutoff	Not recorded	Yes Catalog note Once paired device-to-device, a YoLink water leak sensor closes the valve directly over LoRa, with no internet, no app and no AC power; the hub and internet are only needed for the app and notifications.
Wired Leak Sensor	Yes Catalog note Includes a 5 ft sensing cable plugged into the actuator that shuts the water off when it detects a leak; more cables can be linked to extend coverage to 500 ft.	No
Power
Battery Backup	No Catalog note No battery is listed. During a power outage the manual says to unplug the actuator and use its emergency handle; that handle does not sync the valve state with the app.	Yes Catalog note When the controller runs on its adapter, the four AA batteries stay in as backup during a power outage.
Battery Life	Not applicable / unspecified	2 years Catalog note YoLink quotes 2+ years between battery changes in battery-only mode.
Battery Type	Not applicable / unspecified	4x AA
Wired	Yes Catalog note Powered by a 15 V adapter (100-240 V input) with a 10 ft cord.	Yes Catalog note The controller can run from the included plug-in 12 V adapter instead of, or together with, its batteries.
Valve
Installation Type	Inline valve Catalog note Ships with a lead-free NPT ball valve that is plumbed into the main line, after the main shutoff and the pressure reducing valve; the actuator then clips onto it.	Retrofit actuator
Motor Torque	5 N·m Catalog note Rated torque 5 N·m (44.25 in-lbs), breakaway torque 6.5 N·m, runtime under 10 seconds for a 90 degree turn.	Not recorded
Pipe Sizes	1/2", 3/4", 1", 1-1/4" Catalog note Sold as VWS02Y-1/2, VWS02Y-3/4, VWS02Y-1 and VWS02Y-11/4, each with its own NPT ball valve.	1/2" to 2" Catalog note YoLink recommends the EVO for ball valves of 1/2", 3/4", 1", 1-1/4", 1-1/2" and 2", attached directly to the valve shaft with a direct-drive adapter; it installs in about 15 minutes with a Phillips screwdriver and also fits PVC ball valves once the handle is removed.
Valve Exercise	Yes Catalog note A configurable maintenance cycle closes and reopens the valve on a schedule; First Alert recommends at least every 2 months. It does not run while the valve is closed.	Not recorded

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The table matches specifications by section and field. It preserves notes, separates missing data from explicit “No” values, and keeps qualifications attached to their values. No overall winner is assigned from feature counts.

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