[elecena] RF A20 RF A20 - zmiany ceny Moduł GSM/GPRS WiFi 850,900,1800,1900MHZ UART/GPIO 3.3÷4.2V, -30÷80 °C, SMD RF A20 RF A20 - 52.30 PLN https://elecena.pl/product/23427754/rf-a20-rf-a20 2023-05-11 RF A20 RF A20 - 47.61 PLN https://elecena.pl/product/23427754/rf-a20-rf-a20 2025-09-04