I don't know if you already managed to read correctly the BLE data.
Here follows what I get from this (nice and cheap!) sensor. Any tip about decoding?

0x6E400002 ACCELEROMETER (Acceleration)
0xFFA0002A3628 (it seems FA00 for x, 02A3 for y , 3628 for z)

0x6E400003 GYROSCOPE (Angular velocity)
0xFFA7007FFFC4

SERVICE 0x6E400004 BAROMETER (Pressure)
0x0018BE9 (on the table)
0x0018BDD (about 50 cm above the table)

SERVICE 0x6E400005 TEMPERATURE
0x012E (ambient)
0x0140 (inside warm hand)

SERVICE 0x6E400006 AMBIENT LIGHT
0x0000 (dark)
0x0936 (direct LED torch)