1) Heat sealing tester 2) test heat sealing temperature, pressure, speed of plastic film & plastic bag etc ... smooth x 5pcsHeating moldDual heatingPower supply220V, 50HZFeatures:1.Dual-temperature, dual control, dual display;2.An external cylinder,printer inside, use ... test data;5.Excellent performance of the start sealing temperature, sealing speed, heat sealing strength;6..Versatile languages ...