Motopreserve
Drone Enthusiast
Get the Unisens-E, little pricey, but very accurate
http://www.sm-modellbau.de/shop/product_info.php?products_id=138&cPath=18&XTCsid=c346a1653b59e9d7832f36b40b4db146
Hey tundra: how about a little info for those of us that don't read German?
seems man like it might be an all-in-one unit covering most of the functions of the FrSky sensors???? Any domestic vendors?