supply of solid state temperature controller complete for ac coachessolid state temperature controller complete for ac coaches,solid state temperature controller complete for ac coaches conforming to rdso specific ation no. rdso/pe/spec/ac/0020- 2000 (rev-0), amendment -3 with provision of two temperature set tings as per rdso modification sheet no. rdso/pe/ms/ac/0082- 2020 (rev.0).icf approved makes of ( 1) a. paul software systems, (2) analog electronics, (3) sidwal(4) amit or any other make with prior pr ototype approval from rdso/rcf/icf are only acceptable. [ warranty period: 30 months after the da te of delivery ] ]