Daiwa CN-501H2 SWR 1.8-150MHz SWR/Power 2KW Meter (SO239)
Input / Output Connectors: SO239 Type. Frequency: 1.8～150MHz. One scale will indicate Forward Power. Another scale Reflected Power and SWR is indicated at the crossing point of the 2 needles. SWR Detection Sensitivity: 4W MIN.