NAS-1000 AIS-SART is Designed to be used for emergency purpose on lifecraft, AIS-SART has advantage in some aspects, such as fartherdreach transmission and less affect from sea conditions. Designed to transmit a serial of messages on two AIS channels periodically. NAS-1000 adopts low consumption devices to ensure the product to continously operate more than 96 hours. NAS-1000 conforms to the latest rules including IMO MSC 246(83)and IEC 61097-14. CCS type approval. MED type approval.