Brass Barometer/Thermometer/Hygrometer. Marine quality. Heavy, cast brass case. Lacquered and varnished giving a highly polished finish. Hinged door design allows easy access for instrument adjustment. Rubber sealing ring. Bevelled glass. Suitable for flange mounting only (brass screws supplied)
Barometers are useful gifts, not just for sailors but anyone involved in outdoor activities or involved with animal care: farmers, equestrian, golfers, gardeners, walkers. The brass barometer/thermometer/hygrometer has the advantage of providing three top quality precision instruments in one case!
Barometers read the pressure of the immediate location where placed. It will advise you of what weather to expect in the next 12 – 24 hours
How to ready your barometer: The gold pointer in the glass should be turned so that it rests directly above the black barometer pointer. The gold pointer acts as a marker enabling you to remember today’s pressure when you next look at your barometer. You can thus see whether the pressure is rising or falling and how significant a rise or fall in pressure has occurred. A rapid increase in pressure indicates a short period of good weather and a fast decrease indicates storms and strong winds approaching.
A slow, constant increase in pressure indicates a period of settled, dry, sunny weather, whereas a steady decrease indicates persistent bad weather.
If the pressure falls considerably below 1000 millibars, you can expect storms and strong winds.
Thermometers measure the temperature and Hygrometers measure the humidity in the air. A comfortable room has a temperature range of 18-22C (64-72F) with a humidity reading of between 45 and 70%