Our reagent fridge is a backup for our blood fridge so we keep the alarm points the same. We also store Rh Ig and Tissues (on a separate shelf) in the same refrigerator as RBCs. All our temp alarms are set for 2.3 and 5.5 (Low/High). Sometimes the chart recorders stop recording (for whatever reason) or have unexplained "gaps". So, I recently purchased USB data loggers for all of our storage devices ($50-100 each depending on type of device). I print out chart, review temps and save data monthly. I have the temp being recorded on the data loggers every 5 minutes. I think this certainly meets the revised standard for continuous monitoring. I don't use them for alarms, just as a backup for the charts for continuous monitoring. Alarms go off on the device itself, plus they are wired to our security desk, who notifies us of any alarm. The data loggers were a much cheaper option than paying thousands for a wireless software continuous monitoring system.