Specification Brand : lyrlody BulletPoint1 : Compact and lightweight, powered by RF-tapped power, with no batteries required, and easy to carry, very suitable for amateur radio enthusiasts to use in the field. BulletPoint2 : It can be used to measure radio frequency, it uses 5 LEDs to indicate the strength, with different colors of LEDs to indicate different SWR ranges. BulletPoint3 : It is used to test the SWR of shortwave radio in the frequency ranges of 3-30MHz. The input power does not exceed 100W, and the smallest LED (u003e1.0 corresponding to the green light) light requires 5W power, suitable for various shortwave radio equipment. BulletPoint4 : This equipment is commonly used in radio communication systems such as radio broadcasting, television broadcasting, and radio communication. BulletPoint5 : It helps the operator to determine the strength of the and thus adjust the settings of the radio equipment, to improve the quality and reliability of the . BulletPoint6 : Adjustable Sensitivity: Fine-tune detection sensitivity to narrow down signal sources for more precise location identification. BulletPoint7 : Rechargeable Battery: Long-lasting battery ensures uninterrupted operation for extended periods. ExternallyAssignedProductIdentifier1 : 0614703765335 ExternallyAssignedProductIdentifier2 : 614703765335 FrequencyBandsSupported : 0.01 GHz, 3.5 GHz Hazmat1 : UN3481 ItemName : 3 to 30MHz LED SWR Meter, Shortwave Standing Indicator with 5 LEDs, RF Powered, Compact Design for Radio Enthusiasts ItemPackageDimensions_Height : 3 centimeters ItemPackageDimensions_Length : 8 centimeters ItemPackageDimensions_Width : 5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : radio-scanners Manufacturer : lyrlody ModelName : lyrlody9wadmigqkx ModelNumber : lyrlodyp9gdeysw02 NumberOfItems : 1 PartNumber : lyrlodyp9gdeysw02 PowerSourceType : Battery Powered ProductDescription : Specification: This product is a short band LED light indicating SWR meter. Powered by RF tapped power, no batteries are required, and easy to carry. SWR meter is a device used to measure radio frequency using 5 LEDs to indicate the strength, with different colors to indicate different ranges of SWR. It is used to measure and display the SWR of shortwave radio in the frequency ranges of 3-30MHz. Input power does not exceed 100W, the smallest LED (>1.0 corresponds to the green light) light requires 5W power, suitable for a variety of shortwave radio equipment. Specifications: Name: SWR Meter Material: metal Using frequency: 3-30MHMz Maximum power: no more than 100W Insertion Loss: VSW: Interface: M female Item size: 25 * 25 * 90mm / 0.98 * 0.98 * 3.54in (not counting M base) Package size: 80 * 30 * 50mm / 3.15 * 1.18 * 1.97in Package weight: 85g / 3.00ounce