Navien NHB and NCB System Supply & Return Sensor CablesThis gadget will detect the supply and return temperature of your Navien hydronic heating system. Works with all NHB series boilers: NHB-55, NHB-80, NHB-110, NBH-150 and NCB Combi-boilers: NCB-150E, NCB-180E, NCB-210E and NCB-240E (as well as the older non-E models). A quantity of two sensors is included for this item. |