Agilent RF Power Sensor 8481B 18 GHz High Power Thermocouple Power Sensor

The Agilent 8481B lets you measure average RF power from 10 MHz to 18 GHz at levels up to +44 dBm, making a single probe sufficient for kW radar drivers, high-power amplifiers and Ku-band links. Its thermocouple architecture delivers true-RMS readings on any modulation without range-switch glitches, while the built-in Type-N attenuator chain and excellent SWR keep mismatch uncertainty low. EEPROM-less operation still plugs straight into modern Keysight EPM, EPM-P and P-Series meters as well as legacy 43x frames, preserving existing test code and accessories. Refurbished units ship ISO-17025-calibrated, providing Keysight accuracy, 25-W headroom and long-term serviceability at a fraction of new-sensor cost.

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Why Choose TESTRO?

1. Laboratory-Verified Performance

   Every unit ships with an ISO/IEC 17025 calibration certificate bearing the TESTRO Certified seal, so you know the specifications are not just claimed—they’re proven.

2. Total Transparency

   High-resolution teardown photos and a live video test session let you inspect seals, modules, and real-time performance metrics before you pay.

3. Real Warranty, Real People

   One-year machine warranty, with our engineering team standing by on business days to provide remote assistance for any software or hardware issues.

4. Global Delivery, Built-In Protection

   DHL lanes—arriving at most destinations in just 3–5 days.

5. Flexible, Modern Payments

   Choose traditional T/T or wire transfer, credit card.

6. Open-Door Assurance

   Visit our Shenzhen facility, walk the refurbishment line, and see your equipment on the bench before it leaves our dock.

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Agilent RF Power Sensor 8481B 18 GHz High Power Thermocouple Power Sensor Images