Hi Hydrosys friends, I am wondering if anyone has experience with the NPK sensor from JXCT: https://www.jxctiot.com/product1/product130.html

I implemented an automated system to my Hydrosys system last year. However, I would like to use direct NPK measurement to control the application of fertilizer, why I am looking for sensors, either for NPK level in the irrigation water - or NPK level in the soil.

Any experience with the above - or any other sensors - will be highly appreciated.

Brgds

Lars