The moisture meter can quickly measure the moisture content of the grain. High-power red LED: Nine round red LEDs make it easier and faster to locate surface features. Blood naturally absorbs this frequency of light, enhancing visibility of certain surface patterns. Easy to locate: Gently press the skin with your hand and slowly move the device from side to side. Visible patterns will appear as shadows or dark lines at the periphery of the red light. Compact and portable: This device is slim and lightweight, ideal for transport. It can be carried in a bag or pocket and is suitable for use indoors or outdoors. Application areas: Suitable for use in pediatrics, oncology, radiology, emergency care, geriatrics, laboratory, surgery, outpatient clinics, and other medical settings. Designed for use on patients, particularly infants, children, obese individuals, and those with dark or hairy skin on the forehead, hands, arms, legs, or face. Infrared Vein Finder Browser. Item Type: Vein Viewer. Material: Aluminum Alloy. Weight: Approx. 56 g / 1.98 oz. Size: 95x28mm / 3.74x1.10in. Battery: 3xAAA (battery not included). Light Source: Red Light. Application: Vein locating, red light therapy support. Package Includes: 1 x Vein Locator Device. Infrared Vein Finder Browser.