Object antenna type 3 Antenna SR-168 Ethernet modem "ProNet" 450 MHz 8-loop 450 MHz Type 1 EOSU Kit Antenna object type 2 Message transmitter type 2 Message transmitter type 4 PPD160 interface device Proton-4G object terminal device Keyboard "Proton KS-4/8" GSM-channel 20-loop EOD kit Transponder kit 450 MHz 8-loop 450 MHz Type 2 EOSU Kit Remote control centre terminal device "PCN Proton" UOP Centralised surveillance panel set type 3 Expander of loops and relays "Proton RSHR" Proton-4M object terminal device Set of centralised surveillance panel type 1 160 MHz Type 1 20-loop 160 MHz Type 1 EOSU Kit 160 MHz 20-loop 160 MHz Type 2 EOSU Kit Basic antenna kit 450 MHz 4-loop 450 MHz Type 1 EOSU Kit Type 4 GSM 4-loop EOD set Type 2 16-loop 160 MHz EOD set Antenna adder GSM-channel 4-loop EOD kit type 3 Set of 16-loop 160 MHz type 1 EELMs Repeater antenna kit 450 MHz 4-loop 450 MHz Type 2 EOSU Kit