Seeedstudio RF Explorer model 2.4G Frequency band: 2400-2485 MHz ; Frequency span: 2-85 Mhz Graphics LCD 128x64 pixels, great visibility outdoors ; Frequency resolution: 1Khz Standard SMA 50 ohms connector, a matching antenna is included ; Amplitude resolution: 0.5dBm Dynamic range: -105dBm to -15dBm ;Absolute Max input power: +5dBm;Avg noise level (typical): -100dBm Frequency stability/accuracy (typical): +-10ppm ;Amplitude stability and accuracy (typical): +-3dBm