Must have tech/gadget?

[SaltyFoxfish]

Last time I was in salt things were... mostly analog. Now that I'm hopping back in I'm impressed and excited by all the amazing technology that is affordable and accessible for the average person. From Apex to micro skimmers to ATOs to everything in between, what is the one gadget that you are most grateful for? Something simple or something complex, let me know so I can learn what works for you all and what isn't worth my money yet!

(Currently caring for a 110g softy and preparing for Fluval 13.5 mixed reef, if that helps)

 

[Saintnovakai]

Programmable doser. No more I'll timing or wondering if I dosed today. Stable params.

 

[vetteguy53081]

Controller !! Like having a butler to monitor PH, temp etc and turn lights on and off plus feed the tank and more