Product Details The Vexilar FL Digital Depth Indicator has a digital display that shows depth when combined with your current FL Series Vexilar Flasher (sold separately). As long as your flasher is on, the Depth Indicator will remain on. Easily connect the Digital Depth Indicator to the transducer cable from your FL Series flasher to instantly read depth. The FL Digital Depth Indicator can also monitor the flasher battery’s life simultaneously, simply by pressing a button. It can even sleep when not in use. No more worrying about your battery draining. Gives any Vexilar Flasher the ability to show a digital depth display Works with any Vexilar FL Series Flasher – even older Hondex, Si-tex, and Micronar FL-8’s Displays battery life by pressing a button Easy installation and water resistant Display is lighted for nighttime use Maximum Depth: 199 Feet Power Draw OFF: 124uA Power Draw ON: 21mA Made in the USA Prop 65 Warning FishUSA Customer Reviews (1) Write a Review 5 Bullet proof installation Posted by Mike Whisky on January 5, 2022 Really easy to add to your existing flasher. Really easy to add to your existing flasher.