20dBm 490MHz 2.2Km Low Cost Radio Data Transceiver Module AS65-DTU20 Meter Reading Frequency Band RS232 RS485

20dBm 490MHz 2.2Km Low Cost Radio Data Transceiver Module AS65-DTU20 Meter Reading Frequency Band RS232 RS485
sku: 4000752348287
$17.40
Shipping from: China
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