Detector

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

Detector generates a spark (SPRK) when an it's ctype element is nearby. To set its ctype, draw over it with an element like you would with CLNE. When drawing the metal that will receive the spark, or any solid element nearby it, don't accidentally draw on top of the DTEC, because that will set it's ctype and instantly start sparking nearby metal. DTEC can be used as a replacement to detector wall so that you can make your creations smaller.

You can set the tmp2 to determine the radius it detects elements from (in the shape of a square)