CryoSecure Proximity Card Access System provides access control for the REVCO? range of upright ultra-low temperature freezers. Available as an option on new models or as a field upgrade to REVCO ultra-low temperature freezers fitted with the CryoLatch? security latch system, the product limits access to personnel with a proximity control card. CryoSecure is easily programmed, allows code maintenance, features selective lock, unlock and delay settings and records up to 500 access events into memory. An emergency power connection is included, and the system is network accessible via optional system software running on a personal computer. Network software is available for tracking event history and for access administration of up to 254 individual CryoSecure Modules.