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OVE EN IEC 60839-11-5:2021 - Alarm and electronic security systems -- Part 11-5: Electronic access control systems - Open Supervised Device Protocol (OSDP) ((IEC 60839-11-5:2020) EN IEC 60839-11-5:2020) (english version)
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TUGARD G30 Tuya Smart WiFi GSM Home Alarm Security System Wireless 433MHz Burglar Kit with Fire Smoke Detector - AliExpress
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