Digital FPSE Portable Cold Storage. Ideal for field use or for transportation and storage of delicate samples that need to be kept frozen. 25L Capacity, lightweight and compact. Does not generate Carbon Dioxide vapours. Do not need Hazmat certification to transport. Manage cold chain custody from door to door to assure the integrity of pharmaceuticals and minimize loss or liability. Vacuum insulation panel is used to provide ultra low temperatures while consuming very low levels of energy. HFC-free refrigerants, uses only natural helium gas refrigerants that do not contribute to global warming. Quick recovery after lid openings. Whisper quiet - low noise levels: less than 40 dB. Low battery warning on control panel. Supplied with 3m vehicle adapter. Also supplied with an AC adapter. Power: DC 12V. Can be powered using a 12V battery, a vehicle adapter or a 120V AC adapter. Warranty: 1 year (parts and labour). It features integrated alarms, plug into your vehicle adapter, rugged design, easy-grip handles, weather-resistant controls, Simple operation, easy-clean, pull-out filter, able to operate in a car or truck at -40 degrees C for 12 plus hours without recharging the car battery. Tested: 12 hours of operation at -40 degrees C in 23 degrees C ambient, using Optima Yellow Top, Group-34, automotive battery (60Ahr). 48W Power Consumption. Temperature Range: -40 to 10 degrees C. Set Temperature in 1 degrees C increments. Interior measures 13" width by 13" height by 8-11/16" depth. Exterior measures 27-3/32" width by 18-19/64" height by 13-19/32" depth.