Detects LOW-E and thermal resistant coatings on single and dual pane glass No calibration required – ready to use immediately Powered by a 9-volt alkaline battery (included) Ideal for window film professionals Compact, easy-to-use, and reliable The GT960 AE1601 LOW-E Coating Detector is a professional tool designed to detect the presence and location of thermal resistant (LOW-E) coatings on both single and dual pane glass. Perfect for window film professionals, this device ensures accurate detection without the need for calibration. Powered by a 9-volt alkaline battery (included), the AE1601 is ready to use out of the box for fast, reliable performance. Quickly identify LOW-E coatings to ensure proper glass selection and film installation for maximum energy efficiency.