Check the listing for details. Hand Punch 4000-E Biometric Clock 3498 User Upgraded TCP/IP. Condition: Seller refurbished. Listed at 580.00 USD. Ethernet (TCP/IP-network card installed3498 employees/user (Expanded)Ten programmable function keys.Saves money over card-based systems.Eliminates badges.Eliminates Buddy Punching.Signal Bell and Access Control RelayProvides the most accurate time and attendance solution available.90 days sellers warranty Includes: Power Supply, Key and Wall Mount Hand Scanner, Works By Identifying Employees' Hand Geometry InstantlyWith the use of HandPunch 4000E, employees are identified by the unique shape and size of their hand. This means your staff will no longer have the need to carry keys or cards for clocking IN or OUT. The risks and costs that come from lost, stolen or duplicated without authorization are eliminated. The HandPunch 4000E also eliminates time fraud, making it literally impossible to “buddy punch”. This solution results in more accuracy, productivity and profitability for you company. Hand Geometry TechnologyWith proven biometric technology for hand geometry, the HandPunch 4000E captures an image of the hand each time an employee clocks-in or clocks out. The hands shape and size is used to verify their identity with amazing accuracy. No palm prints or fingerprints are utilized. The technology works well in harsh environments as well as indoors.