New DJ-4 Electro motion Stirrer. Features: 1. High automation. Easy operation. 2. Two muddler (one small, one big) for different vessels. 3. Velocity can be preset and controlled. 4. Widely used in a range of biology, medicine, and chemical industries. Specifications: 1. Preset Velocity range (100-2000) rpm 2. Maximum capacity 8000ml 3. Operational Continuity times ?8Hours 4. Power 220V/110V, 1 phase /20W 5. Dimension (200×300×620) mm3 Delivery Time: 2 - 4 weeks from receipt of a 60% deposit. Balance is due in full prior to shipment.