Precision Optical ClinometersOptical Clinometer AccessoriesMicrometer Drum ClinometersPendulum ClinometersLevelsSpirit Level VialsBall Type ClinometersHand Held ClinometersProtractorsElectronic Tilt SensorsAccuStar®AngleStar®SensorsClinometersDigital InclinometersShipboard Alignment SystemData Acquisition Computing System

TheodolitesSight ClinometerTelemetering TheodoliteObservation TheodoliteTheodolite Data Recording SystemTheodolite Automatic Tracking System20-8000 Common SpecificationsCeiling Light ProjectorCeiling and Pilot BalloonsBalloon Inflation KitPIBAL SystemExpeditionary Compact Meteorological Set Equipment

Alignment TelescopesAlignment AccessoriesOptical/Mechanical TheodolitesTheodolite AccessoriesStands and AccessoriesVertical TransitDigital Azimuth DeviceElectronic Compact Meteorological TheodoliteScales and AccessoriesEyepiece AdaptersInstrument AccessoriesTargets

Three Arm ProtractorsSighting CirclesSurvey and Navigational SextantsPrecision Surface LevelsTelescopic Marine AlidadesVertical Plumb AlignerBinocular CarriagesBoresights

Thermal CollimatorBoresightsJig TransitsTelescopesDioptometerMillidioptometerBeamsplitter/AdapterVideo Boresighting SystemsTelemetric Shipboard Alignment System

LasersMagnetic LocatorsMAC-51BxCompassesLevelsTransitsAlidadesTripodsOptical-Transit Levels

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Three Arm Protractors

Optical/Mechanical Theodolites

Electronic Tilt Sensors

Specifications

Mounted on an eyepiece to provide illumination of the reticle for autocollimation. Synchronization errors can be detected in either x or y when used with optical tooling accessories. In the original design an auxiliary telescope with self contained reticle limit lines are used for viewing through the eyepiece to provide a visual "go" or "no-go" pattern for quick determination of compliance to specification requirements.