This cryogenic freezer from IVYX Scientific can precisely hold temperatures between -40.0°C to -86.0°C, in increments of 0.1°C. Its powerful yet efficient compressor and thick insulating foam throughout reduces the electrical power needed to operate, while its overall small size and light weight allow it to be easily carried by one person. It is perfectly suited to store lab samples, DNA, and vaccines requiring extra cold storage. FEATURES:ULTRA LOW TEMPERATURE: Temperature control from -40.0°C to -86.0°C (-40 to -123°F) in increments of 0.1°C.