FUNCTION: Due to poor management of traditional visual and tactile judgments, this is a very effective method of vascular positioning, helping nurses and doctors to find veins easily and quickly, reducing the pain of repeated acupuncture and moxibustion for patients. GOOD TOOLS: forehead, arm, elbow, foot vein bone spurs, leg vein surgery, etc. This product can be used as a medical reference, for intravenous injection or auxiliary positioning, for health training and demonstration teaching. PRODUCT VOLUME: 25.0 cm 15.0 cm 10.0 cm. This vein finder can only be used o computer with a USB connection, and the image will be displayed on the computer screen. UNIQUE DESIGN: vein collector and vein identification system. The vein imaging device is made based on the principle that hemoglobin strongly absorbs red light. Show the best results i dark room.