EUT TPE：Subclass of Class 1_20_Non-specific short range devices_433.050 - 434.790 MHz
RF STD：Article 3(2)_Radio_ETSI EN 305 550 V2.1.0 (2017-10)_Short Range Devices (SRD); Radio equipment to be used in the 40 GHz to 246 GHz frequency range; Harmonised Standard for access to radio spectrum
EMC Std：Article 3(1)(b)_EMC_ETSI EN 301 489-1 V2.2.3 (2019-11)_Part 1: Common technical requirements;
Article 3(2)_Radio_ETSI EN 305 550 V2.1.0 (2017-10)_Short Range Devices (SRD); Radio equipment to be used in the 40 GHz to 246 GHz frequency range; Harmonised Standard for access to radio spectrum
