The RECON is the first true 21st century telecommunication line analyzer setting a new standard for POTS butt sets It is a field instrument that delivers more information of online conditions status than any other test set on the market anywhere in the world Large backlit display for low light environments Glow-in-the-dark keypad Advanced data detection identification 100 Data Safe Rugged weatherproof case IP54 Standard Drop Proof Tested at 20ft