This frequency meter is widely used to test frequencies with very high accuracy. Wide frequency measurement range: 1 - 500 MHz, resolution 100Hz. 0802 LCD display with backlight and backlight color is generally yellow-green. OOTDTY Features: Higher reliability and durable quality. Wide range: 1 - 500MHz, 100Hz.0802 resolution LCD display, low power consumption. Standard interface for easy connection to other tests or antennas. Input is via the SMA (female) socket. Specifications:Color: Dark GreenMaterial: PCB+FR4Power Mode: 9V battery (not included)Display: 38*16mm LCD displayFrequency range: 1 - 500MHz, 100Hz resolutionProduct size: 60*33*26.5mm / 2.36*1.30*1.04inProduct weight: 45g / 1.54oz Package size: 11*6*3cm / 5.91*4.72*1, 18inNote: the accuracy can only be adjusted to the second digit of the decimal point, less than one-tenth of the precisionPackage included:1*high accuracy frequency meter