LCR Hallcrest, LLC

LCR Hallcrest, LLC (trading as Thermographics) is a US-based manufacturer of thermochromic and photochromic specialty inks, dyes, paints, and consumer products that change color in response to temperature and UV light exposure. The company operates an FDA-registered, ISO 13485-certified facility in Glenview, Illinois, manufacturing made-in-USA products. Primary product lines include Feverscan® forehead thermometers for fever detection in clinical and consumer settings, thermochromic and photochromic specialty inks for industrial and educational applications, and consumer items such as aquarium thermometers, battery testers, and propane tank gauges. Thermochromic liquid crystals are used in flow visualization and heat transfer research. The company offers thermochromic test kits, educational materials, and custom color-change promotional products. Products leverage liquid crystal technology and environmental-responsive inks for temperature monitoring, safety applications (vehicle heat alerts, hot water gauges, baby bath thermometers, choking hazard testers), and energy conservation programs. The company serves healthcare facilities, research institutions, educational markets, and consumer segments globally. Manufacturing capabilities include screen printing, ink formulation, and product assembly. All products comply with relevant safety and regulatory standards for medical and consumer use.