RF STD：Article 3(2)_Radio_ETSI EN 302 054 V2.1.1 (2017-10)_Meteorological Aids (Met Aids); Radiosondes to be used in the 400_15 MHz to 406 MHz frequency range with power levels ranging up to 200 mW;
EMC Std：Article 3(1)(b)_EMC_ETSI EN 301 489-3 V2.1.1 (2019-03)_Part 3: Specific conditions for Short-Range Devices (SRD) operating on frequencies between 9 kHz and 246 GHz
Safety：Article 3(1)(a)_Safety_Cenelec_EN 62368-1:2014/AC:2015_Audio/video_ information and communication technology equipment - Part 1: Safety requirements
Article 3(2)_Radio_ETSI EN 302 054 V2.1.1 (2017-10)_Meteorological Aids (Met Aids); Radiosondes to be used in the 400_15 MHz to 406 MHz frequency range with power levels ranging up to 200 mW;
Article 3(1)(b)_EMC_ETSI EN 301 489-3 V2.1.1 (2019-03)_Part 3: Specific conditions for Short-Range Devices (SRD) operating on frequencies between 9 kHz and 246 GHz
