MADE OF AD8318 CHIP:The RF detector is made of AD8318 chip, the design of the power supply voltage regulator circuit such that the detection accuracy tends to official data OPERATING FREQUENCY RANGE:The operating frequency range is 1-8000MHz, can detect -65 to 5dBm RF signal and with DC voltage output the detected signal strength (in dBm, logarithmic detection) OUTPUT:The RF signal is converted into a DC voltage output. RF signal corresponding to the amplitude or power of the output voltage FUNCTION:You can do signal strength indicator RSSI, spectrum analyzer, gain control GOOD SENSITIVITY:It has very good sensitivity