Micro controller based electronic speed indicator and recording to with speed signal confirming to RDSO spec. No, MP- 0- 3700. 07 REV- 7 August- 2017 Range 0- 120, Voltage 24 V DC Each set consisting of following items. 1 ) Recording cum Indicator Unit 01 no. ( 2 ) speed Indicator- 01 no. ( 3 ) pulse Generator- 01no. ( 4 ) Junction Box- 01 no. ( 5 ) Connecting cable- 01 ) Set of 05 Nos ( Recorder to indicator communication cable 25 mtrs ) similar to LAXVEN SYSTEMS Model No. LAX- 2000D8 for Tower wagon. OR similar make LAXVEN SYSTEMS, MEDHA SERVO DRIVE, AUTOMETERS ALLIANCE. ( RDSO APPROVED VENDERS ) OR OTHER RDSO APPROVED VENDORS