The VWR 1535 warm air incubator provides quick temperature recovery, full-length inner glass door for viewing specimens without disturbing the chamber atmosphere. Microprocessor controlled for easy keypad set and calibration. Temperature display may be calibrated to match a secondary thermometer. For over-temperature protection, a second, independent safety controller can be preset and has visual alarm when activated. Features through-wall access port for chart recorder. All of our equipment is fully tested before being shipped.