... No: STE-8L-A(Class B), STE-12L-A(Class B),STE-16L-A(Class B),STE-18L-A(Class B),STE-23L-A(Class B)Application Area:Dental Clinics ... ..STE-8L-A(Class B), STE-12L-A(Class B),STE-16L-A(Class B): Digital display. STE-18L-A(Class B),STE-23L-A(Class B): LCD display..A ...