The latest in our line of advanced Data Protection Test Sets, the new TS44 DLX test set features a superior High Impedance Monitor, Data Lockout and Lockout Override, making you completely safe in Talk,  Monitor or Override Mode. DSL/POTS filtering technology will allow the technician to safely draw dial tone on a live DSL/POTS shared line to test the POTS service while protecting the DSL from downing or disruption. Advanced testing functions for low/high voltage and low (mA) current detection are displayed with easy-to-read LEDs, providing technicians more information to work intelligently out in the field. Always-on Monitor Mode simplifies operation and speeds testing. The ergonomic case has DropSafe reliability and enhanced Waterproof protection - tested to withstand 40 mph rainfall intensities and exceeds the American Military Specification MIL-STD-810E, so it's weatherproof for extreme conditions. This easy-to use-unit comes with all the features that make a technician more productive in the field, including a high fidelity, 2-way speakerphone for true hands-free conversations.