Barometer, Altimeter, Thermometer, Stopwatch and Time-of-day Clock

This hand held digital barometer measures barometric pressure, graphically displays the barometric pressure trend, measures temperature, measures altitude, has a time-of-day clock and a stopwatch.
Barometric pressure trend shows present reading and previous 2, 4, 6, 8, 10 and 12 hours in a bar chart format. Barometric pressure reading is updated every 15 minutes. Altitude is displayed in meters or feet.
Clock displays the time of day to the minute and shows the date and month. The clock also features a time of day alarm and user selectable display of 12 or 24 hour format. The stopwatch can be used to time events from 1 second to 99 hours, 59 minutes and 59 seconds. Resolution is 1 second
and accuracy is 0.01%.
Rugged shock-resistant case, compact size (4 x 2.5 x 0.75”) and lightweight (3.7 ounces). Comes supplied complete with lanyard, batteries, NIST certificate and instructions. Warranty: 1 year.

Specifications:
Barometric Range: 15.9 to 31.01 in. Hg, 400 to 1070 mbar
Resolution 0.03 in. Hg, 1 mbar
Accuracy: ±0.1477 in. Hg, ±5 mbar
Altitude Range: -500 to 7000 m, -1640 to 22,965 ft.
Resolution: 1 m (-500 to 1000 m) 2 m (1001 to 7000 m)
Temperature Range: -4.0 to 158.0°F, -20.0 to 70.0°C
Resolution: 0.1°C
Accuracy: ±1°C