... than 15 km without obstacles (in a clear line). Specification: Transmitter System IndicatorsFrequency330-400MHz(optional)RF Power10WVoltageDC12VCurrent3.5AFrequency stability0. ... -voltage fuse, Damp, Broken seals, soaking, and so on. Transportation costs of replacement, repairment etc. Paid by the ... smoothly and safety, we have the final decision on the selection of shipping company.Please do kindly ...