... -Ray Film Reader CE &ISO USB output High Performance Dental X-Ray Film ReaderFEATURES AND SPECIFICATION:No protective operation ... volum,light in weight,convenient for carrying,time is adjustable,high contrast of pictutre,imaging in focusradiation leakage in accordance ... Tube current:0.1MA Frequency:30KHZ Time of exposure:1-9s Weight:2kg Environment tempreture:-40 High Performance Dental X-Ray Film ...