Instatherm® Griffin style beaker with pouring spout. Designed to operate at up to 250 degrees C. Do not run dry or above max voltage. degrees per minute), with very low thermal lag. The bottom is uncoated Bare, flat bottom suitable for use with magnetic stirrers. All baths include a connecting controller cord. These low voltage beakers require a variable voltage output control such as 12324, 12323 or 12335 controllers.