I currently have a Optima II that has a Visual Warning port where I plug in a Hypoxic Optima LED indicator.
http://www.chutingstar.com/skydive/altimeters/led-indicator-altimeters/optima-ii-audible-altimeter-visual-warning-port
https://gethypoxic.com/products/hypoxic-optima-led-indicator
Hello everyone,
Been a member since 2010, finally found the time and saved up some money to get my A license this year. Received my 'A' stamp 4th of July weekend. Love the sport and love being in the sky.
Blue skies!