Can the audible alarm be disabled?

It has high, medium and low volume settings but I do not think it can be completely silenced. You can adjust the duration down to only 10 seconds. This is a brand new product that will get some enhancements by way of firmware updates. That is a good idea to be able to completely disable it, so I will submit that idea to engineering. Eric with YoLink

Can we add more than one device to the hub ? I have to freezers in the same area

I don't know what the limit is, but I have two motion detectors and one power monitor on the same hub.

If wifi is alive and only power of hub is out, can trigger this alarm? If power of hub is on and only wifi is dead, can trigger this alarm?

The audible alarm will activate if power to it is interrupted. If the hub is out/offline, you'll receive an email or text notification (per your settings) in half an hour. If WiFi is down, you will not get an immediate notification on the app, since the app requires an internet connection to the device via the hub. But you will get an indication in the app that your device is offline. And if both WiFi and power is out, you'll get that notification in half an hour. It is worth pointing out the PFA can be paired to other alarms or relays, plugs, etcetera, to cause a remote alarm or device action, if you need that. Enjoy! Eric with YoSmart

What does it mean if the led to the left of "set" button is blinking green? yesterday it was solid. in the app it seems to be fine.

Solid green is what it’s supposed to be. I believe when it’s blinking it’s telling you it’s not connected. Mine has been solid green and has been working perfectly fine

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⚡ Never be left in the dark again with YoLink’s smart power fail alert!

POWERFUL LOCAL ALARM - 110 dB siren with bright LEDs ensures you never miss a power failure, even without your phone nearby.
STAY INSTANTLY INFORMED - Real-time AC power outage alerts via app, SMS, email, and optional calls keep you ahead of disruptions.
SEAMLESS SMART ECOSYSTEM - Integrates effortlessly with the YoLink Hub and other smart devices for centralized control and monitoring.
NO SUBSCRIPTION NO HASSLE - Enjoy free app usage with no hidden fees—smart monitoring that respects your budget and time.
UNMATCHED LONG RANGE CONNECTIVITY - LoRa technology delivers reliable wireless monitoring up to 1/4 mile—perfect for large homes or offices.

The YoLink Smart Power Fail Alarm uses advanced LoRa wireless technology to monitor AC power status remotely with a range of up to 1056 feet. It features a loud 110 dB siren and bright LED indicators for local alerts, while delivering instant notifications via app, SMS, email, and optional calls. Designed for seamless integration with the YoLink Hub, this no-subscription device ensures professional-grade power outage monitoring for homes and businesses.

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$667

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Brand	YoLink
Colour	White
Power Source	Corded Electric
Compatible Devices	Smartphone
Item dimensions L x W x H	8 x 5 x 2.8 Centimeters
Connectivity Technology	Wireless
Control Method	App
Battery Cell Composition	Alkaline
Maximum Range	1056 Feet
Included Components	Detector
Noise Level	110 dB
Sensor Technology	LoRa
UPC	850024791411
Manufacturer	YoSmart
Item model number	YS7106
Product Dimensions	8 x 5 x 2.8 cm; 205 g
ASIN	B09NR1YXHH

YoLink Smart Power Fail Alarm, AC Power Outage Alert, LoRa Long-Range Wireless, Remote Monitoring, App Alerts, Text/SMS, Email Alerts, YoLink Hub Required!

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