Which EnOcean radio frequencies are used in Europe, North America and Japan respectively?
A — 868 MHz / 902 MHz / 928 MHz
Option A is correct because EnOcean uses regional sub-GHz ISM bands: 868 MHz in Europe (ETSI EN 300 220), 902 MHz in North America (FCC Part 15.249) and 928 MHz in Japan (ARIB STD-T108). Devices are not interchangeable across regions because the RF front-end is tuned to a specific band. Option B is wrong because 433 MHz and 2.4 GHz are not EnOcean bands at all (433 MHz belongs to other RF systems, 2.4 GHz is used by Zigbee / BLE / Wi-Fi). Option C is wrong because 868 MHz is restricted to ETSI territories. Option D is wrong because EnOcean deliberately avoids the crowded 2.4 GHz band in favour of better building penetration in sub-GHz.
Always confirm the regional variant on the device label before ordering; a 902 MHz transmitter shipped to a European site will not communicate with an 868 MHz gateway and cannot be reprogrammed to switch band.
- A.868 MHz / 902 MHz / 928 MHz✓
- B.433 MHz / 915 MHz / 2.4 GHz
- C.868 MHz worldwide
- D.2.4 GHz worldwide
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