Temperature sensors 1 & 2 values is in 0.01 precision (real precision ~0.06), temperature range -55C to +120C.
Hybrid sensor (sensor 3) values is in 0.1 precision (real precision ~0.1), temperature range -40C to 100C and humidity 0% to 100%.
Temperature sensors works in this order:
If one of two sensors is broken, working one will be placed as "Temperature sensor 1" and broken one will be "Temperature sensor 2".
If sensor is unconnected or broken, it gives null value.
If you're planning to program socket as thermostat, you should place both temperature sensors in the same place.