The catch
YoLink Smart Home Starter Kit with 4 Door Sensors
For a full audible alarm, you must add more YoLink devices.
Side by side
With its long-range sensor link, YoLink is useful for monitoring four separated openings. Eufy supplies the keypad, motion sensor and audible alarm hardware, which makes a more complete starting system for a small home.
Before you buy
A keypad and motion sensor are not replaced by four contacts.
Where this comes from
Start with four contacts against two, then note zero against one for the keypad and zero against one for the motion sensor.
The catch
For a full audible alarm, you must add more YoLink devices.
The catch
There is no cellular backup in the package. If you want optional paid monitoring, you need compatible devices and an eligible location.


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YoLink four-door-sensor kit or eufy five-piece kit? Distant openings, audible alarms, keypad operation and the gap between alerts and a full alarm layout decide it.
Which one fits
Four contacts come with YoLink. Eufy comes with two, which means additional sensors are required to cover four openings.
One comes with Eufy.
One motion sensor comes with Eufy.
Long-range links are what YoLink LoRa is designed for.
In practice
A keypad and motion sensor are not replaced by four contacts.
Start with four contacts against two, then note zero against one for the keypad and zero against one for the motion sensor.
For that response, the YoLink package requires additional audible hardware.
Only a hub and contacts are listed for the selected kit. Eufy comes with an alarm-system HomeBase, a keypad and motion sensing.
This comparison establishes no guaranteed wall-through range, even though LoRa is relevant to distant structures.
A long-range LoRa link is documented for YoLink. How far it really reaches depends on obstructions, sensor placement and hub connectivity.

YoLink, YS1603+4YS7704
YoLink coverage reaches a garage, a gate and more exterior doors with four long-range contacts.

eufy Security, T8990121
This simple HomeBase alarm package sends app alerts and does not force you into a monthly monitoring plan.
Spec by spec
| Spec | YoLink Smart Home Starter Kit with 4 Door Sensors | eufy Security 5-Piece Home Alarm Kit | In practice |
|---|---|---|---|
| Contact sensors | Four | Two | To start with, YoLink covers twice as many openings. |
| Motion sensor | None included | One included | Interior movement detection comes from Eufy. |
| Keypad | None included | Included | A fixed arming interface comes with Eufy. |
| Alarm sound hardware | No siren included in this hub-and-contact kit | HomeBase alarm system | A complete audible alarm is not provided by YoLink contact alerts alone. |
| Sensor link | YoLink LoRa long-range link | Eufy HomeBase sensor ecosystem | They differ in radio choice and accessory compatibility. |
Trade-offs
Change of plan
Neither model fits. Alongside its keypad and base, AS05 comes with two contacts and a motion sensor.
Decision guide
YoLink earns its place by watching four separated openings over a long-range sensor link. For a small home that wants a more complete starting system, Eufy brings the keypad, motion sensor and audible alarm hardware.
The long-range sensor link is what makes YoLink worth a look. Verify the exact environmental limits of the sensor before you place it outdoors or on an exposed gate. Test the real route from hub to sensor, because a published range cannot account for every wall and metal door.
A basic arming routine is simpler with the keypad and motion sensor that Eufy includes. Its two contacts can cover the first openings you choose. YoLink may still be useful for alerts, but a hub-and-contact package should not be called a complete alarm unless you add hardware.
Work out which sensors and response devices the final layout needs before you buy a starter kit. Neither package gives you staffed dispatch or cellular backup automatically. An app notification depends on a working network and on a person ready to act on it.
By the numbers
What we found across the home security systems we compare, plus the checked facts behind each finding.
None of the 22 models checked meets all of “Sensors that reach a garage or outbuilding”, “Several doors and windows get a sensor”, “Alerts in the app, no monitoring contract required”, and “Daily arming from a physical keypad”, so the pick goes to the closest practical compromise.
0 models fit, out of 22 checkedHow we countedThe count uses each product's current fit ratings for “Sensors that reach a garage or outbuilding”, “Several doors and windows get a sensor”, “Alerts in the app, no monitoring contract required”, and “Daily arming from a physical keypad”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| YoLink Smart Home Starter Kit with 4 Door Sensors |
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| eufy Security 5-Piece Home Alarm Kit |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

Opening alerts from four separated locations are what you want.
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The first kit should already include a keypad and motion sensor.
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