Accucold low temperature laboratory series includes a range of chest freezers capable of operating at -30 C (-22 F). The VT73 is a manual defrost chest freezer with 6.7 cu.ft. of storage capacity designed to store laboratory and institutional materials at -30 C. It includes a digital thermostat and high/low temperature alarm with an external temperature readout, calibrated to NIST standards in our ISO/IEC 17025:2017 accredited laboratory. We include a 2-year certificate of calibration for your records, as well as the option of re-calibrating your temperature probe at the time of its expiration. This freezer comes in a white finish with stainless steel bumpers pre-installed on the front corners for added protection in high traffic settings. The counterbalanced hinges allow you to keep the lid open when loading and unloading, with an easy grab handle and keyed lock included. The hammered aluminum interior includes two wire storage baskets. Additional sizes in our -30 C series are available, as well as lower temperature options. Browse the complete Accucold lineup or contact our product specialists to best meet your cold storage equipment needs. Low temperature chest freezer Operates at -30 C for use in laboratories, research facilities, and other settings with lower temperature cold storage needsNIST calibrated temperature display Alarm includes continuous NIST calibrated display of the current interior and high/low temperature, and can be switched from Celsius to Fahrenheit at the touch of a buttonHigh/low temperature alarm Audible alarm sounds if the interior temperature rises or falls out of set rangeCertificate of calibration 2-year certificate included for your recordsBuffered temperature probe Thermometer probe is encased in a glycol-filled bottle and stored in a fixed box on the center shelf. This is the ideal way to produce temperature readings closest to stored contents, as recommended by the CDC and VFC's guidelinesFactory-installed lock Added security with a locking lid (2 keys included)Manual defrost operation Static cooling system with a front drain for easier defrosting as neededDigital controls Externally located digital thermostat allows you to adjust the temperature as needed without opening the lidCounterbalanced hinges The lid will remain open once lifted for easier loadingThick insulation Solid walls ensure proper insulation for reliable storageStainless steel front corner protectors Factory-installed external "bumpers" to help protect the corners in busy high traffic environmentsHammered aluminum interior Solid construction for durable storage in busy settingsEasy-grip handle External handle for easy openingStorage baskets Two removable wire baskets includedRemovable divider Slide-out wire divider lets.