What material is this sensor plated in? Nickel?

Question

I want to make a water loop using only copper and brass because I want to use a silver kill coil. I cannot have nickel parts or there will be corrosion. What material is coating this temperature sensor?

https://shop.bitspower.com/index.php?route=product/product&product_id=1963

It does not specify the material of the black coating.

Thank you for your time!

Answer 1

Dear Customer,

The sensor is made in copper, and electro deposition in black color. The coating is resin.