Description: Simple construction, compact design and easy to carry. Standard interface for easy connections for other tests or antennas. Wide range: 1-500MHz, the maximum frequency is 640MHz, 100Hz resolution. Special control chip with high accuracy. Low-power consuption, can use batteries for power. 0802 LCD display, the digits can be seen directly and clearly. Specification: Material: PCB Display: 0802 LCD Resolution: 100Hz Frequency Range: 1-500MHz Maximum Frequency: 640MHz Size(Approx.): 5.04x3.54x0.79" / 12.8x9x2cm Package Includes: 1 Piece Frequency Counter (Batteries not included)