The KC9531B is a True RMS RF power sensor designed primarily for monitoring industrial microwave systems. It is capable of accurately measuring unstable RF signals, such as those generated by magnetron tubes. With a drift of less than 0.5dB within the temperature range of -20 to 65 °C, the sensor exhibits high reliability, ensuring stable and durable performance. KC9531B built-in RS485 and usb interface, measurements can be easily started by connecting the PC software KCSDI using a usb connection. Main Performance 100MHz~4GHz frequency range 50dB dynamic range 0.5dB absolute uncertainty (typical) 0.2dB relative uncertainty (typical) 100ns minimum pulse width 50ms time constant 20MHz maximum signal bandwidth RMS detector Parameter parameter condition min typ max unit/note Frequency range 100 4000 MHz Amplitude -30 20 dBm Uncertainty all amplitude range 0.5 1.5 dB，25℃ -20~ 10dBm 0.2 1.0 dB，25℃ temperature drift -20~65℃ 0.5 1.5 dB Long-term stability 0.5 1.0 dB/a Data speed 200 package/s，Limited by RS485 DC Voltage 4PIN Port 3.5 18 V USB-TYPE-C 4.5 5.5 V DC Current DC Supply 100 400 mA USB Powered 300 RF Connector N-type male RF Port SWR 4GHz 1.2 1.5 Dimension L×W×H 105 60 23.5 mm Weight 220 g Setting screen shot with KCSDI software Measurement screen shot with KCSDI software Download Driver(WIN) Driver Download Software KCSDI