Customer Question:

Does it come with instructions on how to interface with your router?

Answer: Yes !! "just need to setup your home/office wifi profile into device" that's it !! Super Easy !!

and with how to interface with the browser, is it hosted on a remote site where I have to create an account?

Answer: Yes ! we will create a livetime Free I.O.T Cloud account just for you so when you get this devices and everything all setup for you and you just need to setup your home/office wifi profile into device and open web brower from your smart phone or PC/MAC to login your account and change password to what you want.

Can I set alerts for different water levels?

Answer: Yes !! you can setup this in our third party Free IOT cloud site. You can setup as many water level alert as you want. the email alert is free but voice alert or text alert first 50 or 100 action is free.

how long is the sensor cord?

Answer: for this unit not too long 6CM . if you want long and range far and waterproof. please buy following one from us here on ebay

WaterProof and Powerful longer range and easy install 
https://www.ebay.com/itm/143846129716

Features:

* This meter allows you to know the state of the outdoor water tank without leaving living room.

* You can mount it on the top of your water tank, the meter can measure the precise high and distance with an ultrasonic sensor.

* Transmission range depend on your home or office WIFI Router

* Tank level display at CM and INCH.

Specifications:

* Tank level updated local and internet every 10 seconds or 3mins

* Battery power: any 5 volt usb port

Package contents:

 1* Ultrasonic Tank Liquid Level Meter Device