*Specifications:- Supply Voltage - 230 volts AC Working Pressure - 1.8 to 4kg/cm2 Maximum input pressure - 6.0kg/cm.sq Pressure Source - Pressurised Oxygen / Compressed Air Hand Piece - Dimensions - Dia. 24 Mm X 180 Mm. Weight - 0.150 gms. Probes - 0.8 mm ,1 mm ,1.2mm for ureternoscopy, 1.5 mm Bladder Stones, 2 mm renal stones.