Desk- and wall-mount thermometers and hygrometers measure ambient temperatures and humidity levels. They can be placed on desks or hung on walls for visibility. They can be used in warehouses and offices or outdoors for monitoring working conditions. Fixed-position digital thermometers are mounted to refrigeration systems. They have a 3-digit display that shows temperature readings. They are often provided with cabled or wireless sensors for the remote monitoring of indoor or outdoor conditions in restaurants, manufacturing facilities, offices, homes, greenhouses, and in storage facilities. Fixed-position digital thermometers for commercial refrigeration and commercial and residential temperature alarms provide measuring and monitoring of temperature-sensitive environments.