Torrey Pines 400A new line of analog stirring hot plates and stirrers from Torrey Pines Scientific, Carlsbad, Calif, features models with five or nine stirring positions. The ST15 Stirrer and the HS15 Stirring Hot Plate can stir up to five 800-mL vessels, while the ST19 Stirrer and HS19 Stirring Hot Plate can accommodate up to nine 500-mL beakers of aqueous solutions from 100 to 1,500 rpm. The 12-inch (305 mm) square ceramic heater tops have a temperature range up to 450°C, and each stirring position is individually controlled so different vessels can be stirred at different speeds at the same time on one plate surface. The units measure 19 inches (432 mm) deep by 12.5 inches (318 mm) wide by 5.25 inches (134 mm) tall, and can support more than 50 pounds (22.6kg) on the plate surface.  All controls are mounted well in front of the heater surface to protect against accidental burns, and the units are designed to keep spills out of the chassis. For more information, visit Torrey Pines Scientific.