Question 1

Is there any way to use the water leak sensor without buying an hub? I have Amazon Echo, would that work?

Accepted Answer

Sorry, no. YoLink Hub is required to set up YoLink Smart Water Leak Sensor. 
You can order YoLink Smart Hub from the link https://www.amazon.com/dp/B07TQLKQLJ 
or you can order our Smart Home Security Start kit which includes this Smart Leak Sensor, Link: https://www.amazon.com/dp/B07V246GCX

Question 2

Is there an audible water leak alarm without using the app? Onboard alarm?

Accepted Answer

1. For the waterproof function of the product, we do not have a sound function for YoLink Smart Water Leak Sensor;
2. We will release a YoLink Siren soon which can connect multiple YoLink water leak sensors and other YoLink safety devices,  with long distance coverage and alarm even without network connection;
3. Because of the long coverage distance of YoLink products, even if there is sound in the sensors, we still can't hear it, Alerting user's Smart Phone is more important. What's more, our YoLink Siren is even more comprehensive.
4. Reduce its own sound function, which can be waterproof and lower power consumption. The battery life of YoLink Water Leak Sensor can last for more than 5 years.

Question 3

can I use to turned a switched off if it detects a tank reached a level of water?

Accepted Answer

You will need a yolink outlet or a yolink wifi togle switch ( depending on the device you are wanting it to turn off ) to link the water sensor together. Then set an "if" scenario and you should be good to go.

Question 4

why is there such a stark difference in battery life between water sensor 1 vs 2? version 1 is up to 5 years while version 2 only up to 2 years

Accepted Answer

Water Leak Sensor 2 has a sounder. You can optionally turn off the sounder, but since that draws current from the batteries, it is factored into the battery calculations we used.  We tend to lean towards the more worse-case scenario (more frequent use, with sounder enabled) but your experience with it will vary and it could very well be closer  to 4 years than 2.

Eric with YoSmart

ASIN	B07Z7QWJBP
Best Sellers Rank	#2,378 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Water Detectors & Alarms
Brand Name	YoLink
Current Rating	3 microamps
Customer Reviews	4.6 4.6 out of 5 stars (6,879)
Included Components	Valve Controller
Item Dimensions	2.44 x 2.44 x 0.96 inches
Item Type Name	Water Leak Sensor
Item Weight	0.08 kg
Manufacturer	YoSmart
Material Type	Plastic
Model	YS1603+YS5001+YS5004+4YS7903
Mounting Type	Protruding
Number of Items	1
Part Number	YS7903
Specific Uses For Product	Amateur, Inside, Professional, indoor use only
Style Name	0dB, without hub
UPC	850024791480 750258361438
Unit Count	1 Count
Warranty Description	2 Years

Water Leak Sensor 1, YS7903

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