Keysight’s LAN and USB power sensors offer the capability to measure peak and average power of a power meter in a compact and portable form factor.
Setup is fast and easy with the plug-and-play USB connectivity. Simply connect the sensor to your PC and start performing power measurement immediately with the bundled software. With Keysight’s the USB power sensors, you get what you need— simple setup, beyond just a sensor.
Looking for a LAN connectivity power sensor for long distance remote monitoring of satellite systems? Choose the L20X0XA LAN power sensor, a LAN/Power over Ethernet (PoE) based sensor with thermal vacuum option and has the widest dynamic range.
Looking for a USB power sensor to plug into your PC? Choose the U20X0XA USB Power sensor that has real time measurement with zero dead time and internal firmware memory available up to 1Mbyte.
U/L2050/60 X-Series USB / LAN Wide Dynamic Range Peak and Average Power Sensors
U2049XA (Option TVA) and L2065XT LAN Power Sensors


The X-Series power sensor makes accurate average or time-selective average power measurements of any modulated signal, and covers all common wireless signals such as LTE, LTE-Advanced with 100 MHz bandwidth, and WLAN 802.11ac with 80/160 MHz bandwidth. A 4-path diode stack design with parallel data acquisition paths offers seamless range transition with high accuracy and repeatability. This design enables all the diodes to operate in their square law region, allowing the X-Series power sensor to function like thermocouple power sensors to provide accurate average or RMS power for broadband modulated signals.
The X-Series power sensor are power sensors with the widest dynamic range of 96 dB (–70 dBm to +26 dBm). The 96 dB dynamic range enables accurate power measurements of very low signal levels for a broad range of applications such as wireless chipset, power amplifier and module manufacturing, satellite payload testing, test system or instrument calibration, and radar pulse parameter measurements. The U2042/44/63 and L2061/62/63XA X-Series peak and average power sensors are able to support up to 4 pairs of gate power measurements.



The X-Series power sensor takes up to 50,000 super-fast readings per second (in fast/buffer mode/ average mode), a ten times improvement over Keysight’s previous sensor offerings, allowing test engineers to increase test throughput capacity and reduce cost of test especially in high volume manufacturing environments such as mobile chipset manufacturing.
This measurement speed is fast enough to measure every continuous pulse without leaving time gaps in between measurement acquisitions. While conventional sensors only provide a snapshot of continuous pulses, leaving dead time where a glitch could slip by unnoticed, the X-Series power sensor measures continuously in real time and keeps pace with very fast pulses, up to 10 kHz PRF. Users are also able to fully control which portion of the signal is measured and what throughput they can expect because the aperture duration precisely defines the maximum measurement speed as 1/aperture duration. For example, setting the aperture duration to 20 μs offers 20 μs of measurement time per reading, equaling a measurement speed of 50,000 readings per second
The X-Series power sensor offers a new feature called average mode time selectivity, whereby users are able to configure the aperture duration of measurement capture with reference to immediate trigger or external trigger. The aperture duration can be set from 20 μs to 200 ms with a resolution of 100 ns, a resolution low enough to cover any radio format.
This new feature allows users to control which portions of the waveform to be measured, giving the same results as time-gated power measurements made in the conventional normal/peak mode. The key benefits of this feature is that it enables the sensor to measure both average and time-selective average power measurements across the full 96 dB dynamic range, and offers real time measurements of up to 50,000 readings per second. This is a significant improvement when compared to conventional power sensors; a conventional sensor’s time gated power dynamic ranges is typically clipped at around 50 dB with maximum speed of 1000 readings per second.
Save time and reduce measurement uncertainty with the internal zero and calibration function. Each X-Series power sensor comes with technology that integrates a DC reference source and switching circuits into the body of the sensor so you can calibrate the sensor while it is connected to a device-under-test. This feature removes the need for connection and disconnection from an external calibration source, speeding up testing and reducing connector wear and tear.
This internal zero and calibration function allows continuous long distance and remote measurements by maintaining the accuracy of the sensor, and is useful in manufacturing and automated test environments where each second and each connection counts.
An external trigger enables accurate triggering of low level signals close to the sensor’s noise floor. The X-Series power sensor come with built-in trigger in/out connection, allowing you to connect an external trigger signal from a signal source or the device-under-test in order to achieve precise triggering timing. Once the trigger output is enabled, a TTL trigger output signal will be generated on every triggered measurement. The built-in trigger in and out is particularly useful when users need to synchronize the measurement acquisition of a series of daisy-chain power sensors.