Boonton Electronics 4200-S RF Microwave Wattmeter

Boonton Electronics' 4200-S/21 RF MICROWATTMETER is a dedicated microwave power measurement instrument in Boonton's 4200 series, designed to quantify microwatt-level RF power with the precision required for bench-top testing and calibration of small microwave signals. This unit ships without a cord, carries Boonton part number 99100600D, and is documented for serial numbers 975 and above to identify its production range. The model designation 4200-S/21 RF MICROWATTMETER confirms its identity within Boonton's microwattmeter family, a niche tool used for measuring very low RF powers in specialized test setups. Boonton Electronics Corporation, based in Randolph, New Jersey, provides the official manuals and literature for this model, ensuring reference to accurate setup procedures, calibration notes, and service guidance when integrating it into a test workstation.