8 Test Sieve Shaker, Sieve Diameter 8 in, Fits Number of Full Size Sieves 9, Fits Number of Half Size Sieves 16, Timer Range 1 to 60 min or Continuous Run, Timer Type Mechanical, Mounting Required No, electromagnetic HP, Power Required 110V AC, 60 Hz, Special Features Also Accepts 200Mm And 3 Sieves, Electromagnetic, Includes Adjustable Straps, Power Cord, Manufacturers Warranty Length 1 yr