A sleek handheld sensor device of ent_instrument_array resting on a dark workbench, displaying an active LED frequency readout graph translating invisible infrared radiation into a sharp green waveform on its matte black screen. Contemporary analytical laboratory setting, cool neutral tones.. Spatial layout: Портативный датчик излучения лежит на столе рядом с графическим дисплеем частот.. Context markers: modern digital sensor suites, carbon fiber and matte casing. The complete visual composition—including all primary subjects, secondary supporting elements, boundaries, and environmental contours—must sit comfortably inside the canvas with generous clean white negative space visible on all four sides (target 8-12% margins, minimum 6%). The entire visual assembly must occupy maximum 80% canvas height and 84% canvas width. Nothing touches or crosses any canvas edge. Do not crop the primary subject. Clean isolated 2D explainer composition against pure white/off-white background. hand-drawn 2D explainer cartoon illustration, confident clean black outlines, flat cel-style colors, simplified readable forms, soft minimal shading, clear focal hierarchy, clean educational YouTube illustration, no photorealism, no 3D rendering, no typography, no text, no watermarks
