This meter is designed with for 's AD8317 chip and used for RF signal detection. Detection frequency range is 1M-10GHz, which can detect an RF signal with a of -55dBm to -0dBm, and convert this RF signal into output. The greater the RF signal amplitude or , the higher the output voltage, and the output voltage is proportional to the logarithm of the input signal amplitude, which expands the dynamic range of the detected signal by 55dB. Widely applied to RF signal detection, signal measurement, environmental field strength detection, and can also be used as an integral part of automatic gain control and automatic level control. This logarithmic detector can withstand high and low temperatures, stable and durable. Item Type: Logarithmic Detector SPI interface is easy to with arno and single chip microcomputer with 2.54mm pitch pins Temperature Measurement Range: 0℃ to 1024℃ Converter Temperature Resolution: 0.25℃ Working Voltage: DC 3. 0~5. 5V Working Current: 50mA Operating Temperature Range: -20℃~85℃ Colour: green Material: plastic Package Contents: 1 * RF Log Detector Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.