FPV racing drone enthusiasts, this Flysky telemetry module set will take your flying experience to the next level! This complete set includes everything you need to monitor your drone's performance in real-time. You get the FS-CPD01 magnetic RPM telemetry module that monitors up to 60,000 RPM, the FS-CPD02 photo induction RPM module for alternative mounting options, the FS-CTM01 temperature acquisition module that handles from -40 to 250°C, and the FS-CVT01 voltage acquisition module that monitors 0-100V DC. Plus, there's the FS-CEV04 i-BUS serial bus receiver with 4 channels. All modules operate on 4.0-6.5V DC and are incredibly lightweight (between 6-8 grams each), so they won't weigh down your setup. Compatibility is key here - these work directly with iA4B and iA6B receivers, and with iA10 receivers using a conversion cable. The installation is straightforward, and once set up, you'll have all the critical data you need right on your transmitter screen. Knowing your voltage levels helps prevent unexpected power loss, temperature monitoring protects your components from overheating, and RPM tracking lets you optimize your motor performance. This is serious gear for serious racers who want that competitive edge and better control over their equipment. The build quality is typical Flysky - reliable and well-made. If you're into FPV racing and want to step up your telemetry game, this module set delivers professional-grade monitoring capabilities that will help you fly smarter and safer.