MJR PTC-100 The MJ Research PTC-100 is a 96 well thermocycler that also uses a heated lid for oil-free operation plus the following features: Improved 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 0-100C electronically, in a compact instrument with a footprint that measures 24cm x 28cm x 27cm high. Speedy ramping rates of; up to 1.4?sec in models that hold 0.2ml tubes or V-well plates; Unparalleled temperature homogeneity: ?.4C within 30 seconds of arrival @ 60C for all standard models.tel:13248002946