Nissei RS-50 MAX Digital SWR Power Meter – 140-170MHz / 430-470MHz 0-120W RF Meter for SWR Measurement

The Nissei RS-50 MAX Digital SWR Power Meter – 140–170MHz / 430–470MHz, 0–120W Measurement Range is a compact and high-performance RF measurement instrument designed for accurate monitoring of Standing Wave Ratio (SWR), Forward Power, and Reverse Power in radio communication systems. Built for dependable operation across both VHF and UHF frequency bands, this digital SWR meter helps users optimize antenna performance and maintain efficient signal transmission.

Supporting a frequency range of 140–170MHz and 430–470MHz, the RS-50 MAX provides flexible RF measurement for communication equipment, antenna tuning, and system performance testing. With a measurable power range of 0–120W and maximum power capacity of 120W, users can accurately monitor power levels during operation.

The meter delivers reliable measurement performance with an accuracy class of ±5%, making it suitable for maintaining stable RF output and reducing reflected power. Equipped with a bright backlit LCD display, users can clearly read SWR and power values in different lighting environments.

Designed for convenience and portability, the RS-50 MAX supports dual power options through 2 × AAA batteries or Micro USB input, allowing flexible operation in both field and bench environments. The integrated SO-239 connector ensures compatibility with standard RF equipment, while the 50 Ohm impedance design supports efficient antenna matching and transmission performance.

Its compact dimensions of 70W × 78H × 30D mm make it easy to carry and install, providing an ideal solution for professionals and radio operators who require fast and accurate RF measurements.

Specifications

• Frequency Range: 140–170MHz / 430–470MHz
• Measurable Power Range: 0–120W
• Maximum Power: 120W
• Accuracy Class: ±5%
• Display Type: Digital Backlight LCD
• Power Source: 2 × AAA Batteries / Micro USB Port
• Functions: Forward Power (FWD) / Reverse Power (REV) / SWR
• Connector Type: SO-239
• Impedance: 50 Ohm
• Dimensions: 70W × 78H × 30D mm

Applications

• Antenna tuning and SWR optimization
• VHF and UHF communication systems
• Amateur (Ham) radio operation
• RF power monitoring and testing
• Communication equipment maintenance
• Signal transmission performance analysis
• Portable RF measurement applications