Dual IF design, IF and add / subtract mode can be individually preset. LCD0802 LCD screen display, up to 7 digits can be displayed, the frequency value is invalid zero automatic blanking. Mini chip's 8-bit microcontroller PIC16F648A as the core of the high-performance 1.2GHz frequency meter. Built-in frequency reference using temperature compensated voltage-controlled crystal oscillator (± 2.5 ppm -TCXO). Anti-power reverse design, low-power battery-powered programs. Double-button control, good man-machine interface. The settings are automatically saved, boot directly call., Weight: 0.0992080179 pounds, Manufacturer: Hipzeepo