Temperature sensor

Properties
Section	Sensors
Spawn temperature	22°C
Heat Conductivity	0%
Relative weight	100
Gravity	0
Acid dissolve rate	0.1%
Flammability	0
State	Solid
Source code

If a particle up to 2 pixels away has a higher temp than the TSNS, it starts to spark nearby conductive materials (in a 2 pixel radius). You can set the .tmp property to change the radius it detects temperatures from (in the shape of a square). The maximum radius is 25.