Bluetooth Xiaomi LCD

I wanted to integrate my Xiaomi Mijia BLE Temperature and Humidity Sensor.
The config page says it should work out of the box by searching for the mac adress by using “sudo hcitool lescan” or “bluetoothctl”
I have open ssh installed but every time I try searching it responds with this: “command not found”.

System:
Rpi 3b
HassOS 2.11
version 0.104.3

I am probably doing something wrong maybe someone can help me. Thanks in advance