Simple Saltilinity Monitor/Controller?

[Dr. Dendrostein]

I'm at a point now, that I'm starting to look for a Saltilinity controller. Simple would be nice.
Price not issue but as simple as possible yes. I have other controllers, PH,ORP,TEMP......

I need a controller to just activate 110v outlet,base on SG setting. I'll take it from there.

Thank you for your input

 

[VB313]

https://www.ebay.com/p/24w-Aquarium...lue-On-line-Meter-Monitor-2-Probe/19019942549


I been interested in this

 

[Dr. Dendrostein]

https://www.ebay.com/p/24w-Aquarium...lue-On-line-Meter-Monitor-2-Probe/19019942549


I been interested in this

I've seen that, I also need controller to activate a device to control DT water in relation to SG