ABS-1 Double-Direction Magnetic Stirrer is widely used in universities and colleges, institutes for environmental protection, scientific research, public health, disease control, as well as oil, metallurgy and chemical industries, and medical healthcare field. Its an ideal and essential equipment in the labs. TECHNICAL SPECIFICATIONS 1. Power Source: 220V/50Hz; 110V/60Hz 2. Motor Input/Output Power: 30/10w 3. Rotational Speed: 100~1280 r/min. The speed is continuously adjustable. Clockwise/counterclockwise rotations can alternate automatically and the alternating time is adjustable within 3 ~ 15 seconds. 4. Time: 0~1 hour or continuously work. 5. Max Capacity: 3L 6. Ambient Temperature: -5?~40? 7. Dimensions of Working Surface (L×M): 160×150 mm 8. Dimensions (L×M×H): 220×150×70 mm FEATURES 1. The working surface is made of mirror stainless steel, which is acid-proof and alkali-proof, nice and useful. 2. Multi-function, including time setting, speed adjustment, single/double direction alternation, double-direction alternation timing, etc. 3. ND-D reversible generator supporting continuous work for long time. 4. Low noise, no vibration, significant stirring effect.