Reading any kind of device is similar, I suggest you create a simple no-frills app, based on Thermometer, and try it.
I'm not available for hire but if you find you need a lot of help and want to pay for it, there is a 'Work for Hire' category on this forum.
On my site you will find some useful BLE things, not least a link to the standard GATT UUIDs for various items of equipment.
https://www.professorcad.co.uk/appinventortips#TipsBluetooth
The thermometer Project was created by my Power User colleague Gerrikoio, I can't take any credit for it.