The Cole-Parmer ST-200-P is for use in the field or inside incubators or gloveboxes where external power supply is impractical. Maximum speed 1300rpm. Maximum volume stirred 1.5 litres (water). Variable speed control with battery status indicator. ABS top plate and casing 70mm high. Maximum operating conditions +60°C and 80%RH. Overall 150 x 160 x 70mm high. Weight 1.3kg. Supplied with 4 x 1.5V size ‘D’ alkaline batteries giving up to 600 hours operation, and a 25mm PTFE coated follower. Accessory adapters are available for use on 230V 50Hz mains or 12V vehicle supply using the cigar lighter socket.