Navigation Tools


Tahiti Waterproof 7x50 Binoculars with Compass


Our top-rated, best-selling waterproof, center-focus binoculars!

Fully multi-coated lenses allow for transmission of more than 90% of visible light. Anti-reflection coating optimized to your dark-adapted eye allows for improved twilight and nighttime viewing. Filled with dry nitrogen gas to prevent internal fogging, and tightly sealed for a long life. Internal compass and range-finding reticle allows them to work as a high-accuracy bearing compass. 27.4mm eye relief. BAK-4 prisms deliver sharp images and reduce glare. Padded neck strap and buoyant Cordura® case included.

  • Magn. x Objective Lens Dia.: 7 x 50
  • Focus: Center
  • Waterproof: Yes
  • Prism Type: BAK-4 Porro
  • Light Transmission Efficiency: >90%
  • Field of View @1000yd.: 350'
  • Eye Relief: 27.4mm
  • Compass: Yes
  • Rangefinder Reticle: Weight: 40oz.
  • Warranty: Limited lifetime


West Marine Price: $299.99


I picked them up on special at their "12 days of Christmas Sale" on a "one day" special for $149.99 - an excellent deal for these Practical Sailor top-rated Compass Binoculars (go to the link at top for review)


Speedtech by WeatherHawk SM-18 Skymate Windmeter, Yellow

Convenient pocket-knife design, accuracy, features, and price make this the best value in handheld windmeters! It is waterproof, it floats, and it has a high visibility case. 


Current, maximum windspeed
Average windspeed over 5, 10, or 13 seconds
Current temp & windchill
Choose any measurement unit
Reads in tenths
Replaceable 400 hour lithium battery
Data lock feature
Replaceable plastic impeller won't corrode
Comes with lanyard
Threaded for tripod mounting
Unique pocket-knife design to protect unit when not in use
Water resistant to 3 ft
High visibility case
Accuracy: +/- 3% when aligned with wind's axis
Wind Range: .5-89 MPH
Temperature Range: 5 - 122 F (-5 - 50 C)
Optional Units: Knots, MPH, KPH, M/Sec, Ft/Min, Beaufort Scale - F or C
Operating Modes: Current Windspeed - Average over 2 seconds
Average Wind - 5,10, or 13 sec - Max Wind - 2 sec gust since power on
Auto Shutdown: After 20 minutes if not done manually
Power requirement: CR2032 Lithium battery (included)
Measures: 4.8 x 1.8 x .7in
Weighs: 2.3 ounces with case

Available for $59.00 here:


(I picked them up on special at their "12 days of Christmas Sale" on a "one day" special for $44.99)


KVH DataScope Handheld Digital Compass, Rangefinder & Monocular

A Practical Sailor Best Buy:

"The top performer and PS Best Choice is the KVH DataScope, our reigning "king of the hand-bearing compasses." Its accuracy and numerous features make it a very handy navigational tool."


The KVH DataScope combines a 5x30 monocular, a digital compass, an electronic rangefinder, and a chronometer in one handheld unit, making it the most versatile navigational instrument available today. Ideal for sailors, boaters, hikers, hunters, and other outdoor enthusiasts, the DataScope accurately computes the range and bearing to an object with just the push of a button. And since the information is superimposed on the scope's field of view, you never need to take your eyes off of the target! Lightweight, waterproof, and small enough to fit in a shirt pocket, the DataScope puts precision navigation into the palm of your hand.


  • Highest-quality optics and permanent focus design
  • Internally gimballed to help maintain 0.5º accuracy
  • Calculates the range to any object and stores nine separate bearings with their associated times
  • Illuminated for nighttime viewing
  • Compact, one-handed unit is completely waterproof with rubber buttons and grips

Technical Specifications

Monocular Specifications

  • Monocular Type: Roof Prism
  • Magnification: 5X
  • Objective Lens: 30 mm
  • Fully Coated Optics: Yes
  • Fogproof: Yes (gas filled, hermetically sealed)
  • Focus: Permanent (adjustable for vision)
  • Field of View: 9° (472 ft. at 1000 yds. (156 m. at 1000 m.))
  • Exit Pupil: 6 mm
  • Reticle: Electronic

Compass Specifications

  • Compass Type: Digital Fluxgate
  • Gimballing: ± 20°
  • Accuracy: ± 0.5°
  • Resolution: 0.1°
  • Calibration: Automatic
  • True North Display: Yes (user enters variation)
  • Bearing Display: 3 modes: instantaneous/average/continuous
  • Bearing Memories: 9
  • Change in Bearing: Calculated automatically
  • Units: Degree or mils (user selectable)

Rangefinder Specifications

  • Rangefinder Type: Electronic Ratiometric Rangefinder (patented)
  • Scale: 32 step electronic analog scale
  • Units: User determined (metric, English, or any other)

Chronometer Specifications

  • Clock Type: Quartz crystal real-time clock
  • Time Readout: 12 or 24 Hour (user-selectable)
  • Time Memories: 9 recorded in conjunction with bearings
  • Changes in Time: Calculated automatically between bearings

General Specifications

  • Dimensions: 4.5"(l) x 1.7"(w) x 2.4"(h) [11.4 cm x 4.3 cm x 6.1 cm]
  • Weight: 11.5 ounces (327 grams)
  • Environment: Totally waterproof, fogproof, shock resistant
  • Temp. Range: Operating/Storage: -20°C to 70°C
  • Power: 3-Duracell DL2025 3V lithium batteries (or equiv.)
  • Power Consump.: Sleep Mode: 0.02 mA Display Mode: 0.7 mA
  • Battery Life: 6 months to 1 year (depending on usage)
  • Low Battery: Automatic Indicator
  • Warranty: 1-year Warranty

Best price on the web is $472.01

But search eBay or Craigslist - I believe they are discontinued now and can be had for the upper $100 range - or less if you get lucky  :->


(I got a near-new one off eBay for $179...)