Source: Unearthed Arcana 7 - Modern Magic
3rd-level illusion (technomagic)
Casting Time:
1 action
Range:
10 feet
Components:
V, S, M (a scrap of black paper)
Duration:
Concentration, up to 1 minute
Four creatures of your choice within range become undetectable to electronic sensors and cameras for the duration of the spell. Anything a target is wearing or carrying is likewise undetectable as long as it is on the target’s person. The targets remain visible to vision.