The thermometer can measure and display temperatures, detect strong temperature fluctuations, and trigger an alarm if the temperature drops or rises significantly. For my first 3D model, it looks pretty good ;3
The EMF detector detects and visualizes electromagnetic fields. These EMFs are often caused by paranormal activity, but also by interference from metals or cursed objects, and can even detect ores.
I'll create a better icon for the full version soon; this one is pretty ugly, so sorry ;3
The image shows the EMF detector as it detects a PARANORMAL entity and goes up to level 4 and plays an alarm.