Features: It has frequency compensation function. The frequency can be used in a wide ranges. It is divides into three ranges, which can be automatically switched or manually input: FMB：80-108Mhz, VHF: 110-299Mhz, UHF: 300-999Mhz. The screen with 128x64 resolution can be used in outdoor strong light. Aluminum alloy shells, red dots button, very novel and beautiful appearance. The type c charging interfaces has the ability to connect the upper computer. Designed to handle different power levels, this SWR meter is suitable for a ranges of wireless devices, offering precise measurements for optimal device performances. Specifications: Material:Metal,ABS Frequency range: 80MHz~999MHz VSWR display: 1.00~99.9 Maximums power: 120W Power error: <10% Continuous sampling: 100 times/second Burst sampling: The leading edges of the signal triggering sampling, and the burst/continuous sampling is automatically converted. Frequency Compensation: Automatically measure the signal frequency and perform frequency compensation for power conversion. Sleep and wake up: Sleep after 3 minutes without any operation, and can be wakes up by radio frequency or manually. Display: 128x64 LCD screen Key operation: single key. Type C interfaces: USB cable charging, 200mA; Battery: 3.7V/350mAh Size:Approx.95mm/3.74''x35mm/1.37''x26mm/1.02'' Package Includes: 1x Power & SWR 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.