1. Compact and : This device features an power supply design, eliminating the need for batteries. It's perfect for outdoor enthusiasts and portable use with the hf short wave standing wave meter. 2. LED Signal Indication: Utilizing six LEDs, this stand wave meter displays the power strength and swr range of signals, helping users assess and adjust signal quality effectively. 3. Wide Frequency Range: Designed to -to-noise ratio for frequencies between 3-30MHz, the shortwave hf pwr power tester supports varying shortwave radio equipment with input power not exceeding 12W. 4. Versatile Applications: Commonly used in radio broadcasting and communication systems, the hf shortwave power swr meter assists operators in optimizing radio equipment settings for improved signal quality. 5. Easy to Use: With no adjustable components needed, this device works correctly when connected properly, featuring clear IN ( IN) and OUT ( OUT) connection points for efficient operation. Mini Power SWR Meter 3-30MHz HF Short Wave Standing Wave Meter Digital 12W Shortwave HF PWR Power Tester HF Shortwave Power SWR Meter Electrical Instruments Name: SWR meter Frequency: 3- 30mhz Maximum measured power: nominal 10W, actual measurement 12W Minimum measured power: 0.5W Interface: BNC Maximum short-term power at full SWR meter resolution: 7W Current drawn from transceiver to power circuit: 1.2mA Color: Black Material: ABS Package Contents: 1 set * Mini Power SWR Meter Set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.