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The 80340A from Giga-tronics is a Power Sensor with Frequency 50 MHz to 18 GHz, Power Range -20 dBm to +20 dBm (trigger) / -30 dBm to +20 dBm (free run), Max Input Power +23 dBm (200 mW). More details for 80340A can be seen below.
TVAC compliant USB and LAN Power Sensor
10 MHz to 8 GHz Three-path Diode Power Sensors
You can now find similar products from multiple companies on everything RF.