Question for the temperature sensor experts.
I’ve set up two temperature sensors to run a comparison between my roof space and living areas along with the AIR outside. The two sensors are TEMPer2 USB devices: https://pcsensor.com/usb-thermometer/temper2.html
I’ve noticed that the temperatures reported by the sensors tends to ‘stick’ at particular temperatures as I’ve highlighted in the graph (I’m using the ‘external’ sensors, not the internal ones). What would cause this behaviour?