FEATURES: 5.7” Silver Bright LCD, supports all IMO NAVTEX frequencies (518kHz, 490kHz and 4209.5kHz), displays the message contents, messages stored for 72 hours, simple to operate, desktop or flush mount, external printer interface and External alarm output, low power consumption, conforms to the latest rules including IMO M148(77) and IEC 61097-6. CCS type approval. MED type approval.