Radio Transmission System, Star Topology, Node (FlexPower), Operating voltage 3.6…5.5 VDC, Max. range 3200000 mm, External antenna (RG58 RP-SMA connection), Aluminium housing, Integrated signal strength indicator, Configuration via DIP switch, Deterministic data transmission, Frequency hopping FHSS, Time Division Multiplex Access TDMA, Transmission power: 63 mW, 18 dBm conducted, ≤ 20 dBm EIRP, Internal battery, Powers connected sensors with 18 V, Inputs: 2 x NPN, 2 x 0…20 mA, Outputs: 2 x NMOS