A digital barograph is an electronic barometer that records atmospheric pressure over time and displays the changes in that pressure in graphical form. Below is a comparison of the features, specifications and prices of digital recording barometers currently available on the market.
NASA Marine MeteoMan
The NASA Marine MeteoMan is a low-to-moderately priced barograph that has been available on the market for a long time. Its casing is only available in dark gray.
Pros: display large, operation reliable, menu simple. Cons: external power required, casing substandard plastic, no dedicated elevation setting.
https://www.nasamarine.com/product/meteoman/
Bohlken Westerland BG1512
The BG1512 Marine Barograph is a moderately priced device manufactured by Bohlken Westerland, Germany. This recording barometer has been on the market for a long time. Its casing is available in black only. It has three models, each featuring a different color display backlight.
Pros: NMEA data output, precise. Cons: display small, lack of detail due to display resolution.
http://www.bohlken.net/bg/bg1512_en.htm
VION A4000.2
The A4000.2 Electronic Barometer is an inexpensive device manufactured in China previously marketed by Weems & Plath and currently marketed by Denmark Company Delite. It comes in only one casing color, gray.
Pros: cheap. Cons: freezing, need for periodic resetting, outdated moon phase calendar, poor graph display resolution.
https://www.delite.dk/673/electronicbarograph
ASI DBX2
The DBX2 Precision Barometer is a second generation device produced by Aquatech Science Instruments in the United States. This electronic barograph is a slightly higher moderately priced device. Its casing is made of anodized aluminum and comes in two colors.
Pros: wide pressure range, precise, reliable. Cons: display small, limited graph resolution.
Mintaka Duo
The Mintaka Duo Precision Digital Barograph is the highest moderately priced device on the market. It was designed by experienced sailors and is marketed by Mintaka Innovations in the United States. This reliable barometer comes in two different colored casings.
Pros: precise, multi-featured, wide pressure range, WMO tendency symbols and three-hour trend, software analysis tools. Cons: display small, low resolution, complicated PC connection.
https://mintakainnovations.com/products/
Steamrock SB-42
The Steamrock SB42 Digital Barometer is a moderately priced device manufactured in Taiwan. It operates a long time on one set of batteries and is the only device featuring a sun-readable e-paper display. Its casings come in four colors.
Pros: wide pressure range, WMO tendency symbols and three-hour trends, high contrast glare-free display. Cons: no backlight.
Traceable
The Traceable Barometer is the name that this inexpensive device is usually sold under, though it goes by different brand names depending on the marketer. This battery operated barometer comes in one casing color only.
Pros: cheap, NIST traceable certificate provided. Cons: plastic casing substandard in appearance, rudimentary graph.
https://www.traceable.com/6530-traceable-digital-barometer.html
Barigo
The Barigo Digital Barometer is more than twice as expensive as any other digital barometer on the market. It is made by a renowned producer of mechanical barographs in Germany. It comes in different nice casings, including mahogany and brushed aluminum.
Pros: display large, easy to read, reliable brand. Cons: bulky, highly priced.
https://www.barigo-outdoor.de/fileadmin/user_upload/barigo/Katalog/#/20
DIMENSIONS
| NASA Marine MeteoMan | 150 * 112 * 42 mm |  |
| Bohlken Westerland BG1512 | 155 * 92 * 65 mm |  |
| VION A4000.2 | 165 * 103 * 30 mm |  |
| ASI DBX2 | 120 * 78 * 43 mm |  |
| Mintaka Duo | 99 * 92 * 33 mm |  |
| Steamrock SB-42 | 105 * 105 * 25 mm |  |
| Traceable | 76 * 102 * 25 mm |  |
| Barigo | 205 * 130 * 38 mm |  |
PRESSURE RANGE
NASA Marine MeteoMan | 850 to 1100 hPa |  | |
| Bohlken Westerland BG1512 | 900 to 1080 hPa |  | |
| VION A4000.2 | 850 to 1100 hPa |  | |
ASI DBX2 | 300 to 1100 hPa |  | |
Mintaka Duo | 500 to 1080 hPa |  | |
Steamrock SB-42 | 500 to 1100 hPa |  | |
Traceable | 500 to 1030 hPa |  | |
Barigo | 940 to 1070 hPa |  | |
POWER OPTIONS
NASA MeteoMan | External 9 – 15V DC | |
Bohlken | External 9 – 35V DC | |
| VION A4000.2 | External 6 – 12V DC or 4 x AA cells or USB 5V DC | |
ASI DBX2 | External 7 – 14V DC | |
Mintaka Duo | External 12V DC or USB 5V DC | |
Steamrock SB-42 | 3 x AAA cells | |
Traceable | 3 x AAA cells | |
Barigo | External 10 – 30V DC |
PRICES
VIDEO
How to Set Up Your Weems & Plath Electronic Marine Barometer by Weems Plath
ASI DBX2 Review Part 1 by Buckeye Wx
ASI DBX2 Review Part 2 by Buckeye Wx
USEFUL LINKS
Air Temperature Dependence of Sea Level Pressure Conversions by David Burch
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