HP-Agilent/Keysight 435B

The HP 435B power meter is an analog power meter, compatible with the entire series of 8480 power sensors. Depending on which sensor is used, the 435B can measure power from -65 dBm to +44 dBm, full scale, at frequencies from 100 kHz to 110 GHz. This versatile instrument also features <1 percent instrumentation uncertainty, low noise and drift, auto-zero, recorder output, optional battery operation, and long cable options up to 61 m (200 ft). * Optional battery for fully portable operation * Accurate internal calibration source for long-term accuracy * Nine interchangeable sensors for a wide range of applications * Frequency Range: 100 kHz to 110 GHz * Power Range: -65 to +44 dBm * Instrumentation Accuracy: ±1% * Power Reference Output: 50 MHz/1MW