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This product is an RF SWR (Standing Wave Ratio) bridge designed for radio frequency network DIY projects. The kit comes with pre-wound inductors and includes instructions on how to build and calibrate the bridge.

With a frequency range of 1.8m-30mhz for spare parts and 3.5-30mhz for the finished product (default), this module is versatile and suitable for a range of applications. Measuring just 45mm x 29mm x 8mm and weighing 15g, it is compact and lightweight, making it easy to integrate into your project.

The package dimensions are 100mm x 50mm x 10mm, with a weight of 15g. If you're looking for an accessory to help you achieve optimal RF performance in your DIY projects, this RF SWR bridge module is a great choice.