• Note: DSC radio with GPS needs to enter MMSI code to use GPS location recognition function
• RM40 Marine radio handheld with GPS function can automatically identify your position；high-precision navigation and positioning; its maximum error does not exceed 100 meters
• DSC system can send SOS signal to others; and then you can wait for help; you need to set the DSC signal in advance; when you are in danger; you can send DSC signal; turn on the GPS; DSC can real-time update the location
• The MOB function record your geographic location; if only you open GPS function;the geographic coordinates will be sent to other ships
• Tri-watch can provide necessary and important information when you have commercial vessels

• Product Dimensions ‏ : ‎ 5.56 x 2.4 x 1.7 inches; 1.81 Pounds
• Batteries ‏ : ‎ 1 Lithium Ion batteries required. (included)
• Date First Available ‏ : ‎ July 5, 2021
• Manufacturer ‏ : ‎ Retevis
• Country of Origin ‏ : ‎ China