Two of the wires will be the current carrying wires that power the light. Okay assuming you understand that you need the master and and an add on switch for the second switch location then you are good to go here.
Geeni Tap Smart 3 Way Switch Kit White 2 Pack No Hub Required Requires Neutral Wire Smart Light Switch Works With Amazon Alexa Google
3 way smart switch no neutral. They will usually be colored one black and one white potentially with black stripe. Slickdeals forums hot deals meross smart products. The first one is the switch that only has the 3 wire romex. 3 way smart light switch only one needed meross wifi light switch works with alexa and google assistant neutral wire required wall switch with remote control voice control schedule and timer top coupons grocery video games tv computers credit cards home clothing accessories tech cameras auto health beauty babies kids entertainment travel. The best switch to use if you dont have a neutral wire depends on what else you might want to make smart in your home. Lutrons caseta system is more expensive but the hub also works for.
Smart 3 way switch outdoor plug and smart garage door opener. Five of the eight 3 way switches are also in a dual gang box. A switch box with no neutral loop will usually only have three wires see image below. There are dimmable smart switches on the market that can be installed without a neutral wire. 3 way smart switch w no neutral. Starting from 1624 fs w.
Insteon a no neutral dimmer and remotes but i cant seem to find a box. During my research it seems lutron caseta is my best bet putting the switch on one side and a box mounted remote at the other. The key is the dimming feature which turns the flow of power between the light and the switch down to a slight trickle. There is no neutral wire in this box. The third wire should be the ground wire and is usually colored green or bare wire. Im looking to automate my home with some smart switches but i have no neutral available in most of them.
The second box does have a neutral wire but its kind of hard to see in there. My big problem is i have four 3 way switches that i would like to work as well.