SB-42 Digital Recording Barometer (Version 3)
A standalone, battery-operated digital barograph. It displays current atmospheric pressure, a graph showing changes in that pressure over 84 hours, and a World Meteorological Organization (WMO) symbol depicting changes over three hours.
NB-42 Advanced Digital Recording Barometer
The Steamrock NB-42 digital barograph offers all the functions of the classic SB-42, plus pressure and trend alarms. Configure settings easily with the dedicated app via your smartphone’s NFC.
The Steamrock SWR-1 analyzes the boat motion and calculates the wave height and period, along with the boat’s accelerations.
The Steamrock MT-11 provides a visual depiction of moon phases, moonlight availability at night, and estimated times of that availability, as well as information on lunar eclipses.
SB-42 Digital Recording Barometer (Version 2)
A standalone, battery-operated digital barograph. Older version.

A standalone unit comprising a high-quality GNSS receiver with antenna, thermal printer, and surge-protected power circuit.
Automatically prints boat position, COG, SOG, CMG, and SMG every hour, providing reliable backup data in case of onboard electronic navigation or power failure.
A portable, battery-operated WEATHER FAX / RTTY / NBDP / HF SSB multifunctional receiver, with a built-in barograph, multi-time zone clock, precision moon tracker, and calculator / unit converter.







