supply of k electrode for ise,pm kit for erba em 200,epoxy chloride electrode,na electrode for ise,pm kit for erba xl640 biochemistry , k electrode for ise (item code 113953) (item must be compatible with xl-640) ami no. 4 455. [ warranty period: 18 months after the date of delivery ] ] , pm kit for erba em 200 biochemistry analyzer (ami no. 4413) [ warranty period: 18 mont hs after the date of delivery ] ] , epoxy chloride electrode for ise ( item code 113956)( item must be compatible wi th xl-640) ami no. 4456. [ warranty period: 18 months after the date of delivery ] ] , na electrode for ise (item code-113954) item must be compatible with xl-640 (ami no 4454) [ warranty period: 18 months after the date of delivery ] ] , pm kit for erba xl640 biochemistry analyzer (ami no. 4385) [ warranty period: 18 m onths after the date of delivery ] ]