Security system REEF String-202 is designed for centralized security surveillance of scattered city commercial and residential real estate sites. Beats the record for radio communication systems with distance range of up to 150 km without re-transmission on normal city terrain!

Local System of Radio Channel Alarm Messaging REEF Ring RR-701

LIRA-433 – targeted antenna amplified +11 dBd Targeted antenna for secure transmission via frequency of 433 MHz to and from remote sites or sites with poor accessibility АN-433: directional antenna amplified +6 dBd Directional multi-element antenna АN-433, amplified to 6 dB АN2-433: semi-directional antenna amplified +3 dBd Multidirectional dipole antenna АN2-433, amplified to 3 dB АS-433: pole antenna Pole half-wave antenna АS-433 АG-433: tamper-free antenna Tamper-free antenna АG-433.