Another product is the R14 based Peltier cooled storage cabinet accessible by the robot. Forensic Science DNA see application note Peltier cooled storage device based on R14 mechanism When the robot requires access a slot opens, then closes when the robot leaves. Cooled with Peltier diodes controlled by intelligent PID controller it will hold 0.1C and cool down to 20C below ambient. A simple incubator modified for robotic access with a pneumatic door and pull-out shelves. The robot pulls out the required shelf before accessing the plates.
Transparent screens prevent losses while the door is open.