Check the listing for details. SEON Trooper TL-4 CCTV System For Transit Vehicles. Condition: Used. Listed at 700.00 USD. SEON Trooper TL-4 System. Have 15 systems that are complete, all worked when removed. I have gone thru each DVR to make sure they are working, hard-drive is in working order, formats fine and have updated each DVR to the latest firmware for the TL-4 from SEON. These work well in transit vehicles or school buses. SEON Trooper TL-4 DVR/320g HD 4 Cameras 2-CQ 903A w/15’ cable(3) 1-CQ 904A w/30’ cable(1) 1-CJ 904A Power Cable WT1 Cable Event Button w/cable GPS Unit w/cable 1 key for cover lock and Hard-drive lock with each unit. There is no warranty, being sold as is. Shipping costs additional, will work with buyer on shipping costs. Listed locally and other, reserve the right to remove ad. 9seven8seven32eight9six8 $700 O.B.O.