Blood Bag Tube Sealer NBTS-100 is a compact, lightweight tube sealer that uses a high frequency sealing technology to seal the blood bags, infusion bags, and urine bags without causing hemolysis or blood leakage. It is suitable for blood bags with a diameter of 2 to 6 mm and a sealing time of 2 to 4 seconds. Designed with a single chip and automatic sealing voltage. Equipped with an electronic tube with a lifespan of approximately 1000 hours