Descr: In follow up to an email from Jim Fowler today, I would like to request 20 refurbished RefTek data loggers for AfricaArray backbone stations. The data loggers will be used to support the development of the permanent backbone stations of AfricaArray. The data loggers will be housed at the Council for Geoscience (CGS) in Pretoria, S. Africa. NSF has provided funding for a technican at the CGS who will have the primary responsiblity for deploying and maintaining the data loggers.