Measurement Functions:Average power,Pulse power,Max envelope power,DC and AC Voltage, Frequency and Level range:DC to 18GHz,1mW to 10W, Readout absolute relative:W,dBm,dBuV,dB,%W, or %V, 41/2 digits max, NRV-Z53:Thermal power senser,50ohm,DC to 18GHz,100uW to 10W,