A 4-line LCD continuously and simultaneously shows barometric pressure, temperature, relative humidity, barometric pressure trend, and time of day. Minimum\maximum readings for barometric pressure, temperature, and relative humidity are stored every hour for the last 24 hours and are available for recall at the touch of a button. Computer output allows unit to be connected to a computer using the accessory Computer Data Acquisition System (#6531) to permanently capture readings. Digital barometer is the perfect unit for plants, labs, and all other environments where there is a need to monitor conditions of environmental air parameters. Hi/Lo alarms can be set for barometric pressure, temperature, and relative humidity.