Speedtech Part No. SM-8
If you don't have a electronic barometer on your boat AND in your home, here's your solution: a barometer that graphically shows you pressure trends. Like an expensive recording barometer, it shows you the barometric pressure over the last 24 hours, but in easy-to-read bar graph form. It also shows you the temperature and relative humidity, and it even gives you a pictorial weather forecast. Runs on 4 AAA batteries, and mounts on wall or stands on table. A very neat and accurate instrument, and a great gift for every sailor.
ACCURACY: +/-.02 inHg Barometer, +/-2°F (1°C)
PRESSURE RESOLUTION: 1mb/hPa
HUMIDITY MEASURING RANGE: 25% RH to 95% RH
HUMIDITY RESOLUTION: 1% RH
TEMPERATURE RANGE: 32°F-131°F (-5°C to +55°C)
TEMPERATURE RESOLUTION: 0.9°F (0.5°C)
POWER: 4 AAA batteries (not included)
MEASURES: 5.5" x 4.5" x 1"
WEIGHS: 7 ounces