ResQLink 410 RLS Small but resilient, the ResQLink 410 RLS has been professionally engineered and tested to ensure it can withstand even the harshest elements. This buoyant Personal Locator Beacon PLB requires no subscription for use and with the inclusion of the new Return Link Service RLS feature, this ACR beacon provides you with the comfort of knowing that your distress message has been received and your location detected.With three levels of integrated distress signaling technology GPS pos