R&TTE指令（1999/5/EC）第4.1条定义了无线电与电信终端设备的类型。
欧盟委员会（EC）在2000年4月6日发布的2000/299/EC决定中规定了最初的设备类型及相关标识符号。
其中2000/299/EC第11款指出的1类设备，可以不受任何限制地投放欧洲市场和投入服务。
据此，对于2.4GHz、输出功率大于100mW的产品定义为2类设备，该类产品销售至欧盟市场时应在CE标志上加注惊叹号警告符号（见下图）。
只有输出功率小于10mW的设备才可以定义为1类设备，标签上无需加注惊叹号警告符号。
2012年7月，欧盟委员会在向成员国咨询后发布了一份文件（指导文件文本：WORD、PDF），列出了属于1类设备范畴的指导性产品清单（见表1）。
根据这份文件，2.4GHz、输出功率小于100mW的产品可定义为1类设备，CE标志上无需加注惊叹号警告符号，如在2400 MHz～24835 MHz频率范围内工作的宽带数据传输设备（22子类）。
文件中没有给出过渡期。不过，已上架产品（already on stock）应该没有问题。
表1 属于R&TTE指令1类设备的指导性产品清单
| Subclass of Class 1 | Application | Frequency bands |
| 01 | ISDN ISDN Basic Rate, ISDN Primary Rate, ISDN U, Broadband ISDN ATM No description | |
| 07 | Receive-only radio equipment | 9 kHz - 3000 GHz |
| 09 | Radio equipment which can only transmit under the control of the network | Under elaboration |
| 11 | MSS Earth Stations | 1 525.0 - 1 660.5 MHz |
| 12 | MSS Earth Stations | 10.70 - 14.25 GHz |
| 13 | PPDR end-user equipment | 380 - 395 MHz |
| 14 | MSS Earth Stations | 1 610 - 2 500 MHz |
| 15 | MSS Earth Stations | 1 980 - 2 200 MHz |
| 16 | MSS Earth Stations | 1 525.0 - 1 660.5 MHz |
| 18 | DECT | 1880 - 1900 MHz |
| 19 | Non-specific short range devices | 40.660 - 40.700 MHz |
| 20 | Non- specific short range devices | 433.050 - 434.790 MHz |
| 21 | Non- specific short range devices | 2 400 - 2 483.5 MHz |
| 22 | Wideband Data Transmission Systems | 2400 - 2483.5 MHz |
| 24 | Non- specific short range devices | 13 553 - 13 567 kHz |
| 25 | Non- specific short range devices | 26.957 - 27.283 MHz |
| 26 | Radio determination applications | 2400 - 2483.5 MHz |
| 27 | Non- specific short range devices | 24.150 - 24.250 GHz |
| 28 | Non- specific short range devices | 868.000 - 868.600 MHz |
| 29 | Non- specific short range devices | 868.700 - 869.200 MHz |
| 30 | Non- specific short range devices | 869.400 - 869.650 MHz |
| 31 | Non- specific short range devices | 869.700 - 870.000 MHz |
| 32 | Alarms | 868.600 - 868.700 MHz |
| 33 | Alarms | 869.250 - 869.300 MHz |
| 34 | Alarms | 869.650 - 869.700 MHz |
| 35 | Social alarms | 869.200 - 869.250 MHz |
| 36 | Inductive applications | 9.000 - 59.750 kHz |
| 37 | Inductive applications | 59.750 - 60.250 kHz |
| 39 | Inductive applications | 60.250 - 74.750 kHz |
| 40a | Inductive applications | 74.750 - 75.250 kHz |
| 40b | Inductive applications | 75.250 - 77.250 kHz |
| 40c | Inductive applications | 77.250 - 77.750 kHz |
| 40d | Inductive applications | 77.750 - 90 kHz |
| 40e | Inductive applications | 90 - 119 kHz |
| 41 | Inductive applications | 119 - 128.6 kHz |
| 42a | Inductive applications | 128.6 - 129.6 kHz |
| 42b | Inductive applications | 129.6 - 135 kHz |
| 43 | Non- specific short range devices | 5 725 - 5 875 MHz |
| 44 | Non- specific short range devices | 6765 - 6795 kHz |
| 45 | Inductive applications | 7 400 - 8 800 kHz |
| 47 | Active medical implants | 402 - 405 MHz |
| 48 | Wireless audio applications | 863 - 865 MHz |
| 49 | Detection of avalanche victims | 457 kHz |
| 50 | Road transport and traffic telematics | 76 - 77 GHz |
| 51 | PMR446 Analog | 446.0 - 446.1 MHz |
| 52 | Road transport and traffic telematics | 21.65 - 26.65 GHz |
| 53 | Road transport and traffic telematics | 77 - 81 GHz |
| 54 | Wireless Access Systems including Radio Local Area Networks WAS/RLANs | 5470 - 5725 MHz |
| 56 | Radio Frequency Identification Devices | 865-868 MHz |
| 57a | Equipment using Ultra-Wideband Technology | 9 kHz - 3 000 GHz |
| 57b | Equipment using Ultra-Wideband Technology | 4.2 - 4.8 GHz and 6.0 - 8.5 GHz |
| 57c | Equipment using Ultra-Wideband Technology | 9 kHz - 3 000 GHz |
| 61 | Non- specific short range devices | 433.050 - 434.040 MHz |
| 62 | Non- specific short range devices | 244 - 246 GHz |
| 63 | Non- specific short range devices | 434.040 - 434.790 MHz |
| 64 | Aids for hearing impaired | 169.4875 MHz - 169.5875 MHz |
| 65 | Non-specific short range devices | 434.040 - 434.790 MHz |
| 66 | Non- specific short range devices | 863.000 - 865.000 MHz |
| 67 | Non- specific short range devices | 865.000 - 868.000 MHz |
| 68 | Aids for hearing impaired | 169.4 - 169.475 MHz |
| 69 | Non- specific short range devices | 869.700 - 870.000 MHz |
| 70 | Social alarms | 169.5875 - 169.6 MHz |
| 71 | Non- specific short range devices | 61.0 - 61.5 GHz |
| 72 | Alarms | 869.300 - 869.400 MHz |
| 73 | Inductive applications | 140 - 148.5 kHz |
| 74 | Inductive applications | 148.5 - 5 000 kHz |
| 75 | Inductive applications | 400 - 600 kHz |
| 76 | Inductive applications | 3 155 - 3 400 kHz |
| 77 | Inductive applications | 5 000 - 30 000 kHz |
| 78 | Inductive applications | 10 200 - 11 000 kHz |
| 79 | Inductive applications | 13 553 - 13 567 kHz |
| 80 | Asset Tracking and Tracing | 169.4 - 169.475 MHz |
| 81 | Active medical implants | 9 - 315 kHz |
| 82 | Active medical implants | 30.0 - 37.5 MHz |
| 83 | Active medical implants and associated peripherals | 401 - 402 MHz |
| 84 | Active medical implants and associated peripherals | 405 - 406 MHz |
| 85 | Animal implantable devices | 315 - 600 kHz |
| 86 | Low power FM transmitters | 87.5 - 108 MHz |
| 87 | Social alarms | 169.475 - 169.4875 MHz |
| 88 | Radio determination applications | 17.1 - 17.3 GHz |
| 89 | Tank level probing radar | 4.5 - 7 GHz |
| 90 | Tank level probing radar | 8.5 - 10.6 GHz |
| 91 | Tank level probing radar | 24.05 - 27.0 GHz |
| 92 | Tank level probing radar | 57.0 - 64.0 GHz |
| 93 | Tank level probing radar | 75.0 - 85.0 GHz |
| 94 | Model control | 26 990 - 27 000 kHz |
| 95 | Model control | 27 040 - 27 050 kHz |
| 96 | Model control | 27 090 - 27 100 kHz |
| 97 | Model control | 27 140 - 27 150 kHz |
| 98 | Model control | 27 190 - 27 200 kHz |
| 99 | PMR 446 Digital | 446.1 - 446.2 MHz |
| 100 | Radio frequency identification | 2 446 - 2 454 MHz |
| 101 | Road transport and traffic telematics | 24.050 - 24.075 GHz |
| 102 | Road transport and traffic telematics | 24.075 - 24.150 GHz |
| 103 | Road transport and traffic telematics | 24.075 - 24.150 GHz |
| 104 | Road transport and traffic telematics | 24.150 - 24.250 GHz |
| 105 | Road transport and traffic telematics | 63 - 64 GHz |
| 106 | Inductive applications | 135 - 140 kHz |
| 107 | Non- specific short range devices | 122 - 123 GHz |
| 108 | Road transport and traffic telematics | 5 725 - 5 875 MHz |
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