I called Pacific Coast Avionics to order a ACK- EO4 for $445. and they suggested the Artex 345 which sells for $549.
They felt the Artex was a better install because it uses shielded wire instead of the phone cable to connect with the panel switch.
The Artex install sounds more complex requiring soldering the shielded wires versus pluging in a phone cable.
The local AP felt the Artex units were possibly better quality
but would chose the one that weighed the least.
Any opinions to help me make a decision?
Thanks
Herman