- Air Quality Meter
- Anemometer
- Battery Test & Analyzer
- Calibration Tester
- Chart Recorder
- Chlorine Meter
- Clamp Meter
- Coating Thickness
- Concrete Meter
- Conductivity Meter
- Current & Echosounder
- Current Injection Test
- Deadweight Tester
- Density Meter
- Dew Point Hygrometer
- Dissolved Oxygen
- Fault Finder Locator
- Flaw Detector
- Flow Meter
- Force Gauge
- Gas Analyzer
- Gauss Meter
- Grain Moisture
- Ground Resistance
- Hand Pump
- Hardness Tester
- High Voltage Rercue
- Hipot Tester
- Holiday Detector
- Insulation Tester
- Leak Detection
- Level Lube Controller
- Light Meter
- Manometer
- Multimeter
- Networks Analyzer
- Ohm Meter
- Oil Content Analyzer
- Oscilloscopes
- Other Products
- PH Meter
- Pipe Cable Locator
- Power Quality Analyzer
- Power Supply
- Pressure Gauge
- Rangefinder
- Shaft Alignment
- Sound Level Meter
- Spectrophotometer
- Stroboscope
- Tachometer
- Temp. Calibrator
- Thermal Imager
- Thermohygrometer
- Thermometer
- Torque Tester
- Turbidity Meter
- Ultrasonic Thickness
- Vibration Analyzer
- Video Borescope
- Water Level Meter
- Water Quality Meter
- Weather Station
- Wood Moisture Meter
DAVIS Mark 25 Sextant Marine Compass
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The top of the line Davis plastic sextant, the Mark 25 features our Beam Converger™ mirror, sometimes referred to as a "full horizon mirror". A special coating is applied to high quality optical glass to allow the user to see through this mirror, yet still pick up images as faint as low-light stars.
The Mark 25 is illuminated by a long-life LED and made of an upgraded plastic that is very stable.
Many experienced navigators prefer the plastic-framed Mark 25 to metal sextants for some very good reasons, and affordability is only one of them. The instrument’s light weight makes it easier to hold steady for accurate reading. Replaces the conventional half-silvered mirror with a full-field dielectric beam converger and combines horizon and celestial images in a single field for easy, reliable sights even in low light conditions. LED illumination floods the arc and drum with soft light for night use.
Frame Material: Reinforced plastic, upgraded for stability
Sighting System: Full-field beam converger
Scope Magnification: 3 x 27mm
Filter Shields: Seven large sunshades
Arc Range: 120° to -5° of arc
Drum Calibration: 2/10 minute of arc
Lighting: LED Illumination
Weight: 16.5oz.
Case: Padded shock-resisting case
Included Accessories: Well-written instructions and case
Warranty: One year

