Features: This Antenna Analyzers adopts black case would protect the antenna analyzers from external damage, durable in use. 5 operation buttons are easy and convenient to operate. You can selects operation modes, bands and extended functions. The antenna tester is Powered by DC12V to 14V 500mA external power with 2.1mm power plug(center pin positive), just connect the power and then work. The meter has size, easy to carry and in your bag. SWR usable measurement ranges of this analyzers is 1 to 9.99. step size: configurable increments of 100Hz, 1KHz, 10KHz, and 100KHz. Great SWR antennaanalyzer for ham hobbyist or professionals. Specifications: Material:Metal Frequency Generation & Control: 1-60 Mhz SWR Usable Measurement Range: 1 to 9.99 Package Includes: 1x Antenna Analyzers Meter note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.