Features: Supports a wide range from 1 MHz to 500 MHz, at 100 Hz resolution. Works for multi-band radio, cb radio, FM/AM signals, digital/analog inputs, etc. Equipped with SMA female jack for inputs. Standard interface for easy connections with other tests or antennas. LCD display, clear to read, low power consumption, powered by rechargeable 9V battery (not included). Well-built module, high quality, reliable and durable to use. Features: Color: dark green Material: PCB, FR4 Display: LCD 38 * 16mm Frequency range: 1 ~ 500 MHz Resolution: 100 Hz Power supply: 9 V battery (not included) Item size: 5.9 * 3.3 * 1.8 cm / 2.32 * 1.29 * 0.7 inch Item Weight: 41g / 1.49oz Package size: 15 * 10 * 2 cm / 5.9 * 3.93 * 0.78 inch Package Weight: 43g / 1.53 oz Packing List: 1 * Frequency Counter