 The patrol boats are fitted with a Bridgemaster E surface search and navigational radar, a Toplite electro-optical detection system, and a Warrlock direction finding system.A Prism III radar warning system was fitted to the last two boats during construction, and refitted to the rest.Tenders for a Naval Unmanned Aerial System (NUAS) capability for the "Armidale" class were requested in mid-2014.