Will it discreetly let me know if house door is open? Or is it an alarm that people walking by outside can hear?

You can set it to text you or to have the hub alarm inside the house go off. My hub is in my 2nd floor bedroom and alarms on on my doors on 1st floor. So people opening the doors don't hear it I did that because I have an dementia patient at home and it notifies me if they try to leave house when I am sleeping but doesn't scare them

Can app alert you every time do is opened?

Yes, you can set up notifications in the app

I can not get the door sensors to bind . i have the app and hub successfully connected to wifi. door sensors blink one red light with button is pushed

Read the QR code on the sensor with your app first.

Can the hub play a siren sound if the door opens or do you have to buy the seperate siren? I want to get a notice on my phone and an alarm sound.

The SpeakerHub can play a siren sound, but keep in mind it is not a loudspeaker (like our sirens are). The sound level is closer to an Echo Dot; it may not be heard throughout your home. But I have seen the SpeakerHub placeed in foyers and closer to the door locations, where it should be heard very well. This is also a good location, because you can have the SpeakerHub say "system armed" and "system disarmed" as you leave or arrive through that door. You should also take a look at our FlexFob and AlarmFob. https://www.amazon.com/dp/B0978V4WQC?ref=myi_title_dp&th=1 https://www.amazon.com/dp/B092M1QQ5M?ref=myi_title_dp&th=1 And here is our loudest siren: https://www.amazon.com/dp/B0BZHPQ1PK?ref=myi_title_dp&th=1 Enjoy! Eric with YoSmart

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LoRa 1/4 Mile Longest Range Smart Window & Door Sensor, Door Left Open Reminders, Alexa, IFTTT, Home Assistant, 3-Pack (Hub Included)

Product ID: 522257756

Details

Brand
YoLink
Colour
3-pack without
Power source
Battery
Compatible devices
Smartphone
Item dimensions L x W x H
8 x 8 x 11

📡¼ mile LoRa range

🔋5-year battery life

🎙️Text-to-speech alerts

Description

🚪🔊 Secure smarter, live freer with YoLink’s longest-range smart sensors!

SMART AUDIO ALERTS - Hear custom voice notifications and alarms through the unique SpeakerHub for instant awareness.
PLUG PLAY INSTALLATION - Peel, stick, and secure your home perimeter in minutes with pre-applied 3M tape and QR code setup.
UNMATCHED LONG RANGE COVERAGE - Stay connected up to 1,000 feet away—perfect for sprawling homes or multi-building properties.
EFFORTLESS 5 YEAR BATTERY LIFE - Install once, forget for years—no monthly fees, no constant battery swaps.
OFFLINE DEVICE TO DEVICE PAIRING - Your security stays active even during power or internet outages—true peace of mind.

YoLink’s LoRa Smart Window & Door Sensor 3-pack with included SpeakerHub offers industry-leading ¼ mile wireless range, 5-year battery life, and customizable text-to-speech alerts. Designed for easy installation and robust offline functionality, it empowers professionals to monitor doors, windows, and more without monthly fees, ensuring reliable, long-distance security coverage for modern smart homes and businesses.

Specifications

Manufacturer	YoLink
Part number	YS7704-UC*3
Item Weight	66 g
Product Dimensions	8 x 8 x 11 cm; 66 g
Batteries	6 AAA batteries required. (included)
Item model number	YS1604+3YS7704
Color	3-pack without hub
Style	With Hub
Power source type	Battery Powered
Voltage	1.5 Volts (DC)
Installation Method	Self-Adhesive
Item Package Quantity	1
Coverage	1000Feet(Open Air)
Plug Profile	Wall Mount
Specific uses	Amateur, Inside, Professional
Included components	Detector
Batteries Included?	Yes
Batteries Required?	Yes
Battery Cell Type	Alkaline
tech_spec_battery_description_toys	Standard AAA alkaline batteries can be used, but the specific description is not provided
Battery life	5 years

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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