Star topology – up to 60m + T-Box
Sensors can be connected in parallel using a T-Box or T-Box2 splitter.
- Total wiring length should not exceed 60 meters from an active port.
- Combined temperature+humidity sensor appears as 2 different sensors. Two different IDs.
Daisy chain – 60m maximum total length
Some sensors feature a RJ11 connector for daisy-chain (serial) connection.
- 3m connection cable is usually included.
- Total wiring length should not exceed 60 meters from an active port.
4 active ports - 4x 60m 
- After autodetection, sensors cannot be moved between individual active ports. When a sensor connection changes, autodetection needs to be re-done.
- Total wiring length should not exceed 60 meters from an active port.
The information about time related sensors precision and the need for calibration can be found in this application note https://hw-group.us/support/sensor-accuracy-over-time.
You can also get a sensor with a calibration protocol.