Weird Temperature offset if Dect 440 is used.

[Tongo91]

Describe the bug
When a Dect440 is in usw as temperature for a 301 Valve in Homebridge I get some offset of 2,5 degree. For example Dect 440 reads 15 degree, Dect 301 reads 15,5 degree. HomeKit says 18,5 Degree.

To Reproduce
Steps to reproduce the behavior:
Use a DECT 301 with Dect 440 in one room

Expected behavior
HomeKit should display the correct temperature.

Screenshots

Desktop (please complete the following information):

• OS: iOS 16.2
• HomeKit and Fritz SmartHome
• Version: Latest version and FritzOS 7.31

Smartphone (please complete the following information):

• Device: iPhone 13 Pro Max
• OS: iOS 16.2