KTI has ceased operations. Battery replacement, re-coding and other services are no longer available. Warranty claims can only be processed via your retailer.  Most Self-Test problems arise from incorrect product testing.  For Self-Test instructions please refer to the instruction manual or our Q&A pages.  The Cospas-Sarsat system is not controlled by beacon manufacturers – your KTI beacon remains fully compatible with the Cospas-Sarsat system after KTI factory closure.