II. Characteristics of Meter 1.It is with a built-in heat resisting sheet, can resist high temperature and operate at 100℃ for long time. 2.The stored data will not be lost when the the power is off and the last testing data will be displayed automatically when power is on; the test data can only be deleted manually. 3. It has high accuracy, and has passed many tests of authoritative testing organizations and got certificates. 4. It has a built-in timer, and can record the UV curing time accurately.