The E4418A is a low-cost, high-performance, single-channel, programmable power meter. It is fully compatible with the 8480 series and the E-series power sensors (except the E9320A family). Depending upon which sensor is used, the E4418A can measure from -70 dBm to +44 dBm at frequencies from 100 kHz to 110 GHz.
![Keysight/Agilent/HP Power Meter E4418A](https://naptechrepair.com/wp-content/uploads/2022/02/KeysightAgilentHP-Power-Meter-E4418A.jpg)