Our CLT140 chest freezer is ideal for large capacity storage of samples and other materials. KEY FEATURES -10°C to -45°C set temperature - Ideal for medium term sample storage External digital controller - For temperature readings without having to open the door, so preventing unnecessary temperature fluctuations within the freezer Lock and two keys - For improved safety, accountability and security over domestic refrigeration, a lockable fridge helps prevent unauthorised access to valuable and dangerous contents Spark free - There is nothing electrical inside the freezer so it is safe to store reactive substances without the risk of explosion Audible and visual high and low temperature alarms - To alert anybody nearby as soon as the temperature begins to go too high or low, so that action can be taken to rectify the problem and prevent damage to the contents