NuAire’s Glacier -86 C Ultralow Temperature Freezers’ energy efficient cascade cooling system monitors temperature and pressures throughout high and low stage circuits. The inner chamber is surrounded by foam-in-place polyurethane insulation. Two insulated inner doors maintain interior temperature during openings. Multiple point gasket seals lock in cool temperatures while keeping out ambient air. A heated bypass coil around the inner doors reduces frost build-up creating consistent temperature uniformity and a reliable environment throughout the chamber, increasing your cells viability. Microprocessor controls are simple to use monitoring and controlling temperature and alarm set points. Visual and audible alarms for high and low temperature, power failure, sensor failure, battery life, fan motor life, filter check and door ajar. The controls also operate cooling functions, creating optimal storage conditions while minimizing energy consumption. The freezers are RoHS compliant, utilizing CFC-free refrigerants and insulation to eliminate ozone depletion. The Eye level controls, claw-like door latches, low force door opening and exceptionally quiet 47 dBa operation create a friendly working environment.