Warren-Knight Instrument Company

A magnification of 20 power. Provided with eye guards. Each focusing knob is provided with a diopter scale that is graduated from -3 to +1 diopters in ½ inch diopter increments.  Product Details...

Provides smooth and easy movement of the binocular in elevation and azimuth. The elevation control will allow for 70° of rotation, 10° depression to 60° of elevation.  Product Details...

Fitted with rubber eye cups designed for your comfort and to exclude extraneous external light. Moisture resistant with a nitrogen flushed optical system.  Product Details...

Consists of a 6¼″ diameter hard bronze circle with one fixed arm and two moveable arms. Each arm has an 18″ ruler and a 13½″ detachable extension ruler.  Product Details...

Constructed of a special brass alloy, treated and enameled to prevent corrosion. The handle is slightly inclined to provide a more natural grip. A bubble attachment and astigmatizer lens are available.  Product Details...

Using adapter rings to mount the alidade on a compass or gyrocompass indicator, the alidade is primarily intended to be used with the 6″ and 7½″ magnetic compass and the 6″ and 7½″ gyrocompass indicator.  Product Details...

Measures 12 3/16″ in diameter and is divided to single degrees with verniers readable to two arc minutes.  Product Details...

Designed to provide a means to independently establish the sighting and pointing accuracy of an automatic tracking or other radar systems.  Product Details...