Newest & Most Affordable Simplex. Nokta got ready for summer with 3 new Simplex models and 5 Simplex packages...Wow! As has been, Simplex is the most affordable waterproof detector on the market. It is simple to use, for all, even the young and the newbie, while its features are generous enough to attract also the advanced. At $199 Simplex LITE is setting a new record in being the most affordable waterproof detector on the market. This time beating even its own brother Simplex+ both in price and features. If you want to add extra value to your purchase, opt for the Simplex LITE Detector and Starter Pack, for $229. This package comes with Cap, Pouch and Premium Digger too....and Screen Protectors.