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The Frey Scientific 1324337 Advanced Aluminum Top Hot Plate has a one-piece aluminum top and a microprocessor control for heating glassware and contents to between 5 to 400 degrees C, includes a seven-inch square hot plate that is durable, crack- and chip-resistant, and provides a more even heating surface, and has an illuminated LED digital display, a built-in support rod holder with locking knob, and a heat-resistant polymer body. Hot plates are used to heat glassware and contents in laboratories. This hot plate is housed in a heat-resistant polymer body that stays cool to the touch and channels fluids away from internal components. An LED display with built-in memory recalls the last set temperature, and a temperature knob adjusts the setpoint. Overshoot protection automatically shuts down the unit if the temperature exceeds the setpoint by 10 degrees C. A caution indicator light illuminates when heat is turned on and remains on until the top plate cools down. The built-in support rod holder with locking knob at rear holds a standard threaded support rod to suspend instrumentation such as clamps and probes. The hot plate comes with a 92" (234cm) detachable, 3-wire cord and plug. Specifications Temperature range 5 to 400 degrees C Temperature stability + or - 2 percent Maximum capacity 2500mL H2O Top plate composition Aluminum Body type Heat-resistant polymer Power supply 120V 50/60 Hz Top plate dimensions 7 x 7 inches (H x W) Body dimensions 4.3 x 9.9 x 14.8 inches (H x W x D) Weight 10.5lb. H is height, the ver