KEY FEATURES -10°C to -25°C Temperature Range - desired temperature can be set by the user. NEW Advanced Controller - records temperature accurate to 0.1°C. 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. Audible and visual high and low temperature alarms - to alert anybody nearby as soon as the temperature starts to go too high or low, so that action can be taken to rectify the problem and prevent damage to the contents. Open door alarm - to prevent spoilage from raised internal temperature and illicit entry if the door is left open. Wire Shelves - enables optimum air flow inside unit. Fitted Castors - For ease of movement. Chart Recorder is optional USB Data Logging Heart Temperature Monitoring Software - records air and load temperatures constantly and holds a full 7 day alarm history. Power Failure Alarm