QA for swimming pool measuring PH, ORP, salinity and temperature

[Martin555 34]

I would like to share my project measuring the value of a swimming pool measuring PH, ORP, salinity and temperature. I bought from aliexpress 8-in-1 Water Quality Sensor - PH/EC/TDS/Temp/ORP/Salinity/Specific Gravity Tester with RS485 Output and Serial Module RS485 To WiFi Converter IoT USR-DR164 Support Modbus RTU to Modbus TCP.

 

I set everything up according to the manuals and created a QA for reading modbus data. Everything works perfectly.

If somebody to want send me message i can you send QA.

 

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[m.roszak 767]

Consider putting it on the marketplace.fibaro.com for all community members to find

[Tim__ 126]

This is cool. Can you use the measurements to advise the dosage of required chemical? Maybe even automate delivery?

[Martin555 34]

8 hours ago, Tim__ said:

This is cool. Can you use the measurements to advise the dosage of required chemical? Maybe even automate delivery?

I thing yes

On 5/8/2026 at 11:07 AM, m.roszak said:

Consider putting it on the marketplace.fibaro.com for all community members to find

I will it .

[Christb 33]

For the connection to the HC3, it seems that you are not using the ZigBee version: is there a good reason for that? 

Could you give us more details about the full connectivity from the tester to the HC3 via the USR-DR164 module? 

[Christb 33]

On 5/12/2026 at 9:21 AM, Martin555 said:

On 5/8/2026 at 11:07 AM, m.roszak said:

Consider putting it on the marketplace.fibaro.com for all community members to find

I will it .

Is it done?

[Christb 33]

On 5/8/2026 at 10:49 AM, Martin555 said:

If somebody to want send me message i can you send QA.

Is it Possible to get a copy of your QA?

Thanks