What material is the sensor coating made of?

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The PCB of this product usually cannot be used in frost environment, we still recommend you to use this sensor in room temperature environment

Sorry for the late.
Our official website provides a three-month warranty policy for this product, if you purchased the product from our distributor.
The distributorwill provide the corresponding warranty policy for your product.

Hello, when reading the sensor data, my air value is ~3600 and my water value is ~1100.
On the examples I see on your website, the air value is 570, and water is 0.
Are my values normal or is something wrong?

I have bought one through sinuss.nl less than a year ago. After it worked for a couple of months, it just stopped working. It is just giving a constant voltage whatever you do to it (in plain air, or submerged in a glass of water). To troubleshoot I also tried the same setup with the v1.0 (the non-waterproof capacitance type) and then it's working fine. How long of a warranty do we have on this as it seems it just broke down clearly within a years time.

Hello, what is the temperature range that the sensor can withstand?

Can this soil moisture sensor be buried deep under the soil?

Since this sensor will detect soil moisture according to the principle of capacitive sensing, it will show different humidity when placed in places with different soil moisture, different tightness and different insertion depths, even in the same place, the same depth, in the second When it is inserted for the first time, since the soil has been loosened when it is pulled out for the first time, the humidity read may be different from the first time.

What is the operating current?

How long can the cable be?

We used a cable with shielding interference function. If you don’t need this function, the extra ground wire can not be connected.