ELECTRONIC THERMOSTAT SENSOR TO RDSO SPECIFICATION No: RDSO/ PE/ SPEC/ AC/ 0020, LATEST ALT. MAKE: VENUSBASIO/ ANALOG ELECTRONICS/ A. PAUL INSTRUMENTS. NOTE: 1 ) ITEM SHOULD BE SUITABLE FOR 2T CAPACITY ROOF MOUNTED CAB AC OF MAKE DAULATRAM/ FEDDERS LYLORD/ SIDWAL FITTED ON CONVENTIONAL ELECTRIC LOCOS TO RDSO SPECIFICATION No: RDSO/ 2007/ EL/ SPEC/ 0055 REV. 2 OF NOV 2007/ REVISED ON 07. 10. 2014. 2 ) ONE SAMPLE TO BE GOT APPROVED BEFORE EFFECTING BULK SUPPLY.