We have an amazing new range of electronic aids to enhance your RC flying in stock, including a tiny air-speed indicator and altimeter, both small enough to be fitted to even the smallest EDF! Also, the brilliant "R/C Reporter" system, the size of a postage stamp, includes a lost plane locator, low voltage audible warning, warns of lost signal and glitch counter [also ideal foe setting up arial installation], also tests if your frequency is in use, an invaluable safety and warning aid! Better still, the systems can be linked to a PC, via a USB lead and interface to adjust settings, all at low, low prices. all at low, low prices.