The moisture meter can quickly measure the moisture content of the grain. 1. High-power red LED: Nine round red LEDs make it easier and faster to locate veins. Blood naturally absorbs this frequency of light, making veins more visible through the skin. 2. Easy to find vein: Gently press the skin with your hand and slowly move the device from side to side. Veins will appear as shadows or dark lines at the periphery of the red light surrounding the device. 3. Easy to carry: This vein finder is slim and compact, making it convenient to carry. It can be placed in a bag or clothing pocket and is suitable for use both indoors and outdoors. 4. Application situations: Suitable for use in pediatrics, oncology, radiology, emergency care, geriatrics, laboratory settings, surgery, outpatient clinics, and other medical environments. 5. Intended users: Especially suitable for infants, children, obese patients, and individuals with dark or hairy skin on areas such as the forehead, hands, arms, and legs. Infrared Vein Finder Infrared Vein Finder Specification: Item Type: Vein Viewer Material: Aluminum Alloy Weight: Approx. 56 g / 1.98 oz Size: 95 x 28 mm / 3.74 x 1.10 in Battery: 3 x AAA (battery not included) Light Source: Red Light Application: Vein finder, red light physiotherapy Infrared Vein Finder Infrared Vein Finder Package List: 1 x Vein Finder Infrared Vein Finder Infrared Vein Finder