Water Level Sensor

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1

Hi,

I need to know the water level in my tank. And so based on the level, I can turn on/off my water motor.

Is there any Z-Wave or ZigBee device with good battery life to know the Water Level ?

Thanks

2

Assuming you only need to report on 1 level, you could try something like this

water
water234×842 17.9 KB

Cheap, 2 year battery life, 1m cable length and Tuya Zigbee

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3

Another option you can wire up a Smart implant to a float switch.
https://www.amazon.com/Aopin-Stainless-Plastic-Controller-Aquarium/dp/B095HS5RHG/ref=sr_1_20_sspa?crid=3MIIVKOMHWNB4&keywords=float+switch+for+water+tank&qid=1674687848&sprefix=Float+swi%2Caps%2C143&sr=8-20-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzOE9CTDJOVDAxVThEJmVuY3J5cHRlZElkPUEwMTg0MDQ2UExBTVNPOE0xMkpJJmVuY3J5cHRlZEFkSWQ9QTA0NjU3NTNDU0tCODBKU05BTVcmd2lkZ2V0TmFtZT1zcF9tdGYmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl

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4

Or use a few of those to determine multiple levels :grinning:

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5

I need to know multiple level.

  1. base level - to turn on the water motor
  2. top level - to turn off the motor

I planned to get this

AED 87.38 15％ Off | NEO Coolcam NAS-WS02Z Z welle Flut Wasser Leck Alarm Sensor Wasser Leckage Sensor Z-welle Sensor Alarm Home Automation system
https://a.aliexpress.com/_mMYogwi

Or

AED 15.61 40％ Off | Aqara IP67 Water Immersing Sensor Zigbee Flood Water Leak Detector Alarm Security Soaking Sensor Waterproof For Mi Home Homekit
https://a.aliexpress.com/_mKAnyuq

I can get couple of these. But is it possible to perform action like the below

  1. one sensor at bottom level - motor needs to turn on when there is no contact of water. I see the sensor was primarily used to notify when there is water contact.

a) Is it possible to set trigger action when there is no contact of water ?

b) Also since this sensor will be in contact with water all the time. Does it drain the battery ?

  1. one sensor at top level - when water touches the sensor, I will trigger the motor to turn off.
6

Good idea as well. I rely on AliExpress and we use concrete tank with small hole on top.

  1. Water Float - AED 50.98 40％ Off | 1pcs EM15-2 2M 3M 4M 5M Controller Float Switch Liquid Switches Liquid Fluid Water Level Float Switch Contactor Sensor
    https://a.aliexpress.com/_ms4uNty

I think I can get the wire out via the small whole.

But can you tell me the name of the smart device or link from AliExpress which will receive the input from this device (on/off) and send signal via z-wave or ZigBee to motor which use smart plug.

7

Probably this is one of the cheapest devices available: https://www.aliexpress.com/item/4001223271861.html (link edited now)
It uses a standard 3.5 mm audio jack to interface the probe, which can be easily replaced with an open/close contact.

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8

I use the zwave version of the Neo Coolcam leak sensor in my Sump pit, but it is typically dry. I have it up above the tripping point for the sump float to notify me if the sump system fails and the water gets above the maximum level (before it floods the basement).

In your setup I would be concerned about the lowest sensor, being underwater most of the time. Could have some side effects. I think a float switch would be the most reliable and give you both the full and empty states if you set it up correctly. That is how most Sumps work but it sounds like you are doing the opposite, trying to keep it full, where a sump is trying to keep it empty.

You might be able to connect a regular float switch to something like a Zooz ZEN17 relay to get the up and down state from one device.

3 Likes
9

I think I can go with this https://www.aliexpress.us/item/2255800720783429.html as well as Z-Wave will give more battery life.

So I need to place 1st probe at the top level and the 2nd at the lowest level.

Do Hubitat support this brand?

Also, how to change the settings to open/close contact?

10

Z-Wave devices have better compatibility (basic functionalities) in Hubitat in my opinion...simply because there are not so much Z-Wave manufacturers that do not follow the standards if compared to the Zigbee device manufacturers. So yes, this device is supported in HE.
image

The Neo Water sensor driver will generate 'wet' and 'dry' events - for your use case, you will need to create a virtual contact sensor device and use RM to set open/close states.

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11

Here is a list of compatible devices.

https://docs2.hubitat.com/devices/list-of-compatible-devices

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12

Thanks a lot. I have ordered this AED 87.38 15％ Off | NEO Coolcam NAS-WS02Z Z welle Flut Wasser Leck Alarm Sensor Wasser Leckage Sensor Z-welle Sensor Alarm Home Automation system
https://a.aliexpress.com/_mKvsVWa

Will keep all posted about the working status once I received and installed.

Also thanks a lot to everyone who commented here to help me out.

1 Like
13

I also had the problem of wanting to know the water level in our cistern. It is fed from a well via a pump - but in summer the well does not provide enough water and, what with guests having showers every day and using the washing machine every day, I wanted to monitor the water level.
So I set up an ultrasonic water volume measuring system based on a Raspberry Pi and with its own webpage and graphing system. It works with several cistern shapes. Admittedly, it is an ongoing project and is not really ready for public consumption, but I thought it might be of interest to someone (GitHub - Arzachena/Water-Volume: Measure water volume using ARCELI Waterproof Ultrasonic Distance Measuring Transducer).
I also wrote a simple Hubitat driver to accept the data from the Raspberry Pi - I just have to find it :slight_smile: :slight_smile:
I welcome any comments.

14

I got the device and trying to set this up. But I have an issue

When the device gets contact with water, it makes a sound and led starts blinking.

I dont want both of them as the device will be in contact with water most of the time.

Is there an option to turn this off via driver ?

15

Found a manual for it, you should have a paper copy that came with it so you can confirm the setting:
https://fccid.io/Z52NAS-WS02Z/User-Manual/15-NAS-WS02Z-UserMan-US-r1-4384664.pdf

Looks like you need to change parameter 5 to 0

You will need to use the Basic Z-Wave tool to set the parameter, but since it is a battery device you will need to coordinate waking it up and then setting the parameter within a few seconds.

Instructions say to press the button once to wake it up. Super basic Z-Wave parameter tool

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16

Thanks, it helped a lot. I have disabled the alarm now.

1 Like
17

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