NIKOS is not a conventional PA system, but a radio-based public address, alarm and control system for large events, construction sites and crisis situations, which you can rent by the day through certified partners and either integrate into your PA or use on its own.
ChallengeAt EXPO 2027 Belgrade, issuing a severe weather warning is particularly challenging due to the high number of visitors and their different language backgrounds. Despite the size of the event grounds, the high visitor density and the surrounding noise, warnings and instructions must reach all visitors clearly and intelligibly. Power supply failures or disruptions to public communication networks must not impair the transmission of information in a hazardous situation.
One platform for everything: 
unites visitor information, alerting, crowd management and control in a single, network-independent system. ![NIKOS [dispatcher]²](https://nikos.info/assets/logos/nikos/SVG/NIKOS dispatcher.svg)
controls individual announcement locations, specific areas or the entire site, enabling targeted severe weather warnings. This reduces the need for separate control units and distributed operator stations. Staff can be deployed precisely where safety is critical.
meets the requirements of DIN EN 50849 (electroacoustic emergency warning systems). was developed specifically for safety-relevant public address and alerting applications and is technically designed for use in both everyday and emergency situations. For electroacoustic emergency warning systems, DIN EN 50849 is the relevant reference framework. Unlike mobile network-based systems, fully meets the requirements specified therein, as it does not depend on an external network and can therefore be used immediately at any time. Other standards known from safety technology, such as DIN EN 54, DIN VDE 0833-4 and DIN 14675 (voice alarm systems), do not apply to the field of use and functional scope of and are therefore not relevant for approval. is a public address system for temporary and mobile applications and has been successfully deployed in numerous mission-critical communication tasks since 2017. RADACOM and your regional partner will advise you on 's functions and support you in implementing your requirements. operates via its own autonomous radio network and independently of public communication networks and their availability. Because communicates by radio and does not rely on cables, the connection is automatically re-established after an interruption. ![NIKOS [audio]²](https://nikos.info/assets/logos/nikos/SVG/NIKOS audio.svg)
has an internal battery with up to 16 hours of operating time and also powers connected accessory modules. This ensures that severe weather warnings for EXPO 2027 Belgrade remain operational even if the power supply fails or public communication networks are disrupted. was specifically developed for flexible outdoor use without permanent infrastructure. The modules can be mounted and individually configured by one or two people within just a few minutes on various structures such as lamp posts, stages, booths or trees. A standard Schuko power outlet is sufficient for continuous operation. complements severe weather warnings with visual signalling, emergency lighting and the switching of external devices. ![NIKOS [LED]²](https://nikos.info/assets/logos/nikos/SVG/NIKOS LED.svg)
provides emergency lighting, while ![NIKOS [relay]²](https://nikos.info/assets/logos/nikos/SVG/NIKOS relay.svg)
switches external devices. Visual signals increase attention in situations where an announcement alone is not sufficient. is rented by the day through certified partners, including consultation, instruction and technical support. Enquiries are handled via the rental page. The regional partner coordinates the system configuration to meet the requirements of EXPO 2027 Belgrade. Find a partner and request a rentalTalk to us about your requirements – we will advise you with no obligation.
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