The Keysight L2066XT/100/U2037A is a high-performance RF power sensor designed for precise power measurements in thermal vacuum environments. With a wide frequency range of 10 MHz to 54 GHz and a power measurement range of -70 to +20 dBm, this sensor delivers exceptional accuracy and speed, making it a reliable choice for demanding aerospace, satellite, and defense applications.
Key Features & Highlights
- Wide frequency range: 10 MHz to 54 GHz covers a broad spectrum of RF and microwave signals.
- Broad power range: -70 to +20 dBm accommodates both low-level and high-power measurements.
- High accuracy: ±0.5 dB ensures reliable, repeatable results.
- Fast response time: <1 ms enables rapid data acquisition.
- Thermal vacuum compliant: Designed to operate in harsh thermal vacuum conditions.
- LAN interface: Facilitates remote control and data acquisition for automated test systems.
- Compact and lightweight: 1.5″ x 1.5″ x 0.5″ dimensions and 0.5 oz weight for easy integration.
Applications
The Keysight L2066XT/100/U2037A is ideal for engineers and technicians working in aerospace, satellite, and defense industries. Typical applications include:
- Power amplifier testing
- Antenna testing
- Radar system testing
- EMC testing
- Thermal vacuum chamber measurements
This sensor is a valuable tool for ensuring accurate power measurements in challenging environments, backed by Keysight’s reputation for quality and reliability.





Yuki Sato –
Enterprise purchase for a multi-site rollout. First unit (Keysight L2066XT/100/U2037A RF Power Sensor, 10 MHz to 54 GHz) validated successfully; we are proceeding with additional quantities.
Fatima Al-Hassan –
We benchmarked the Keysight L2066XT/100/U2037A RF Power Sensor, 10 MHz to 54 GHz against legacy lab gear and saw clear improvement in measurement confidence. Worth the premium for production support environments.
Carlos Mendez –
Our applications team uses the Keysight L2066XT/100/U2037A RF Power Sensor, 10 MHz to 54 GHz for design validation and customer demos. Repeatability has been excellent; only minor note is the manual is dense but thorough.
Robert Klein –
Significant investment, but the Keysight L2066XT/100/U2037A RF Power Sensor, 10 MHz to 54 GHz has already reduced downtime on critical verification routines. Packaging and shock protection were appropriate for a sensitive instrument.
Hiroshi Tanaka –
High-end equipment purchase — the Keysight L2066XT/100/U2037A RF Power Sensor, 10 MHz to 54 GHz arrived with traceable calibration paperwork and clean cosmetic condition. Our technicians were impressed with build quality relative to price point.