The Nightwatch Collection's photo-luminescent dials combined with it's corrosion resistant, black epoxy coated aluminum cases offers information when you need it, day or night. The B/T/H combination instrument gives the user three essential elements in the weather equation - air pressure, air temperature and relative humidity.
Each instrument is provided with complete instructions, mounting hardware, lifetime warranty, and a fresh battery as required.
Quartz Clock
Dial: 3-1/2". Base: 4-1/2". Depth: 1-1/4".Wt. 5.2 oz.
Clock
AA battery operated, precision movement uses one AA battery.
Barometer / Thermometer / Hygrometer
Highly reliable aneroid movement. Fully adjustable barometer movement with inch and millibar scales. Barometer movements are calibrated for altitudes to 1500' above sea level. Thermometer and hygrometer are pre-adjusted in a temperature controlled environment.
Tide Clock
The clock has a second hand to ensure proper movement, plus a tide indicator hand which is calibrated to the Atlantic lunar tide cycle. (Note: The clock will work for other tidal bodies of water but will need to be re-set more frequently.) It uses a AA battery (included).
NOTE: Tides clocks are less useful in tide prediction on the Pacific Coast