A part of the review has been auto-translated.
I use these sensors for 1 month to moniture the soil moisture of my chili plants. On my pictures you can see what the sensors look like after a month in wet soil. On one side all the metal plating is gone. Pretty bad quality.
They seem very good in quality, haven't tested yet, the best I've received in 20 days in Rondônia, Bangoog is the best in delivery quality....
nice good quality. high accuracy.
ok
Super Quallität zu einem unschlagbaren Preis! Bin sehr glücklich damit!
looking to use them very soon, looking great
Pacco arrivato un mese prima della data prevista. Sembrano di buonissima fattura e l'imballaggio era ben protetto. lo consiglio
Fine stuf.
I use these with ESP8266 NodeMCU directly off A0. When powered from 3.3V pin, needed to add a 10K resistor in addition to the onboard voltage divider to get the output between 0-1 volts. Then it works perfectly. If you drive it via 5v PSU, you will need about 180K resistor to do the same. Another consideration is to use a switching solution like a MOSFET to turn this thing on and off between measurements. Extends lifespan greatly that way.
As described. Consider researching on YouTube to find best type of sensor before you buy