-65°C Ultra Low temperature Freezer Upright (-10°C to -65°C) are widely used in scientific research for long-term storage of samples. These offer excellent uniformity, effective cooling technology & temperature reaches -65°C in 2-4hrs with 1°C controlling precision. Constructed with stainless steel interior, 155mm thick insulation, digital display, password protected keyboard4 unit casters, 72hr backup for alarm & display and CFC-free refrigeration system. Audio/ visual alarm monitoring system indicates temperature rise/ fall, system failure, open-door, filter block, power failure & low battery back-up.