Features:This device features low cost, small size, low power consumption, high precision and high stability, wide dynamic range.It has a frequency range from IF to UHF audio.Suitable for a variety of applications which need to reduce signal to decibel equivalent.Excellent power non-sensitivity and temperature stability.Widely used for converting signal level into dB form, transmitter antenna power measurement, received signal strength indicator(RSSI), low-cost radar and sonar signal processing, network and spectrum analyzer (reaching 120 dB), determining signal level is as low as 20 Hz, multimeter true dB communication mode.Specification:Model: AD8307 Input power default range: -75 ~ +15 dbmPower supply voltage: 6 ~ 12 V@ < 10mAWeight: 6 g / 0.2 oz(approx.)Package list:1 * Power Meter