Model Number:Spectrum Frequency Analyzer Interface:USB Average Noise Level:-89dBm & Under Display Size:2.9 Inches & Under :ELECTRICAL Item Type: Spectrum Frequency Analyzer Output Frequency Range: 138~4400MHz Step: 1kHz Spectrum Input Frequency Range: 138~4400MHz Frequency Accuracy After Calibration: ±0.1k at 1GHz Input Signal Amplitude Low Noise: -70dBm at 0.5G Input Power: -80~0dBm Support: Use for win NWT4.0 PC side software control, support for winXP, for win7, for win10, etc. color:Black Material:aluminum alloy Package Contents: 1 x Spectrum Frequency Analyzer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. 4. Easy to Carry: This spectrum frequency analyzer is light weight, you can always take it with you when you need to testing the electric devices. 1. Touch Function: Spectrum frequency analyzer is with touch function and have no button operation, which means you can touch the screen directly to use. 3. Simple Installation: Our spectrum frequency analyzer is very easy to install and easy to use, directly aligned with the corresponding position of the instrument to install and operate successfully. 2. 4 Modes: Spectrum frequency analyzer have 4 modes, such as net mode, spectrum mode, point mode, sweep mode. The default mode is net mode. 5. Usage Scenario: This spectrum frequency analyzer can be matched with a signal source generator, so if you happen to have a related need, then this one is .