Fecha de publicación: 28/12/2017 Fuente: WIPO "beekeeper" The present invention relates to a measuring device (2000, 5000, 6000, 8000) for measuring bees' activity, health and productivity in a beehive (1000), the measuring device (2000, 5000, 6000, 8000) comprising: a frame (2100, 5100, 6100, 8100) enclosing a cavity (2110), the frame (2100, 5100, 6100, 8100) comprising at least an acoustically transmitting surface (2120, 6121, 6122, 7123, 8124), and an acoustic transducer (2200), placed within the cavity (2110).