Even using countermeasures a wearer of a Janusuit is very difficult to see
The Janusuit is sophisticated, multispectrum Optical Phased Array stealthware widely used by military, police and government undercover agents, organised crime, and libertarian groups. The first examples were developed by Trillicon Arms, but many similar systems have been produced by other manufacturers.
Because every janusoptic has a dual function - able to both detect and transmit electromagnetic radiation, the suit renders its wearer invisible to ultra-violet, visual, infrared, and microwave detection. A Janusuit can also project a wide range of decoy images to further confuse the observer.
It also has potent laser capacity (hence the wearer of a Janusuit does not require any additional external weapons). Janusuits are far more reliable than the chameleon suit, but includes a significant fraction of ultratech components. There are also fully sentient janusuits, and some of these janusuits have been given their freedom, either by their owners or by ai liberationists and hackers. Janusuits do not offer complete protection. Countermeasures include nano cloud, sonics, and interferometry