Diy High Accuracy and Sensitivity 1-500 Mhz Frequency Meter Counter Module Hz Tester Measurement Module Lcd Display

Power Mode: 9V Battery (Not Included) Model Number: 500M Frequency Counter : Electrical Size: 140*9*1.6mm Color: green Material: Metal PC Package Contents: 1 * High Accuracy Frequency Counter Only the above package content other products are not included. Note: Light 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.