|  | Hot Bonnet? heated lid incorporates a thumbwheel to 
            adjust height and pressure. This feature assures tight sealing of 
            reaction vessels - even microplates - during oil-free thermal 
            cycling | 
            |  | Precise Peltier-effect heat pumps - robustly designed for 
            repeated cycling - deliver the full temperature range of 0?-100?C 
            electronically, in a compact instrument with a footprint that 
            measures 24cm x 28cm x 27cm high. | 
            |  | Optional Slide Griddle? adapters allow many 
            models to cycle up to four glass slides with speed and precision. | 
            |  | Ramping rates of up to 1?C/sec in models that hold 0.5ml 
            tubes; up to 1.4?/sec in models that hold 0.2ml tubes or V-well 
            plates; up to 2.5?/sec in models with the silver-gold block. | 
            |  | Temperature homogeneity: ?0.5?C within 30 seconds of 
            arrival @ 60?C for all standard models. | 
            |  | Memory stores approximately 320 programs, and cycler 
            comes with 8 preprogrammed protocols. Any sequence of temperatures 
            can be cycled up to 10,000 times; ramping rates less than maximum 
            may be specified. | 
            |  | Extremely accurate incubations, with NIST-traceable 
            calibration. Any temperature— 
            including below-ambient temperatures— 
            may be held indefinitely. This feature allows refrigeration after an 
            unattended run. | 
            |  | Power-failure protection will resume program after power 
            interruptions of up to twelve hours. | 
            |  | Two-year parts & labor warranty with optional extended 
            warranties. | 
            |  | Four standard models that can hold a wide variety of 
            vessels, including 0.5ml & 0.2ml tubes, 96-well plates & glass 
            slides |