The Standard Laboratory Glass and Solid Door Refrigerators are purpose-built for scientific and medical applications, featuring a digital microprocessor temperature controller allowing for the precise temperature management necessary for critical samples and supplies. The standard temperature display and alarm module offer product security with a monitoring and alarm system. Real-time sample simulated temperatures are constantly displayed and supported by audible/visual high- and low-temperature alarms. Remote alarm dry contacts and an access port are provided to simplify connections to existing facility monitoring systems. A forced air directional refrigeration system provides superior temperature uniformity and recovery after door openings. An automatic cycle-defrost design prevents product damaging temperature spikes. *Environmentally friendly, natural hydrocarbon (HC) refrigerants which vastly reduce global-warming potential while meeting new EPA/SNAP mandates