1) Show accurate angle, the error with the actual angle Is within 2íp degree. 2) It can suitable for different stature people because it can adjust the length of bracket of the thigh and calf according to requirement. 3) Use microcomputer control so that you can operate it freely and easily, and it also has the functions to memorize the parameter on the bracket angle and speed etc. 4) Can meet the max requirement of patient because it can adjust the active angle and speed at large range. 5) It can link with computer, check the record and save it as much as 52 times. 6) It is safe, reliable and low noise with use low voltage direct current non-carbon brush motor drives. 7) The high brightness digital can display number value such as the angle and timing, it is clear and direct-viewing. 8). It can automatic back and forth. 8. Has the travel transformation pause function. 9. Timing function, when arrived at the set time it will automatically shutdown. 10. With a hand control mouse for patient to control the start/stop in time or change the direction of running when he/she feels uncomfortable. 1. The angle range for knee joint:-5íp~115íp 2. Running rate scope: 0~24mm/s (adjustable continuously) 3. Setting working hours: 0~4 hours 4. Setting automatic round number of times: 0~10 times 5. The pause time when the Work travel transforms: 1-10 seconds 6. Power Supply: AC 110/220V 50Hz/60Hz 7. Voltage: DC24V 8. Rated Power: 60W 9. Load: 15Kg 10. G.W: 19.5kg 11. N.W: 16.5KG 12. MEAS: 89.5X45.5X39.5cm