Digital barometer 4002

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