Tron SA20 PLB has a global emergency alert coverage. This PLB can be used in worldwide offshore (maritime) and onshore (land based) applications. Tron SA20 PLB has a rugged and compact design, and is one of the smallest 406MHz lifesaving devices on the market.
 
Tron SA20 PLB is a 406MHz Cospas-Sarsat approved personal emergency device which is developed and designed in accordance with the latest PLB standards.
Return Link Service (RLS) feedback confirms that your distress signal is successfully received and your location is determined
Integrated Near-Field Communication (NFC) for easy status readout by use of a smartphone