Monitor your refrigerators, freezers, coolers, chillers and all other types of cold storage systems for food service, restaurant, pharmaceutical, medical, chemical, lab, and home storage with ThermoWorks fridge and freezer alarms. Hi and low alarms make sure an acceptable temperature range is maintained, including staying within the safety zone. Waterproofing protects against the ingress of condensation at low temperatures. Great for aquariums, terrariums, and incubators, too.