The electronic marine barometer is designed specifically for the mariner. Not only does it show current pressure on the large display, it also displays historical information on a much more expanded scale than most electronic barometers which makes it perfect in a situation where there is a change of watch and the new person on duty can see the changes that have occurred over the last 48 hours in 30 minute increments.
Accurately detects pressure changes to within +/- 0.5hPa
Alarm signals abrupt changes in pressure
Gale warning system
Continuous display of current pressure
Continuous display of time or temperature
Back-lighting for night use
Can be free standing or bulkhead mounted
Operates on 4 AA batteries (included)
12 Volt DC connector (included)
Also available: 4002A, AC/DC adapter accessory
Two year warranty