Dear Sir Madam,I'm Nipsle Baine from HK. I am interested in your productI'm looking for products with the following specifications:±3% RHMaximum range in open area:5kmWorking temperature conditions:-30 °C to +60°CRF frequency:433MHz, 868MHz, 915MHzModulation:Lo-RaTransmit power:20dbm (Adjustable)Nipsle Baine
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