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Newcon Optik LRB 21K 8x43 Rangefinder Biocular

B&H # NELRB21K Mfr # LRB 21K
Usually ships in 7-14 business days

Availability Details


This item is usually Drop Shipped from the MFR/Distributor within 7-14 business days (subject to availability). Your order will be charged at the time of placing the order with the vendor. Item is non-cancelable and non-returnable.

International Orders*
For international orders, credit cards will be charged at time you place your order.

Free Standard Shipping
Not eligible for free Expedited Shipping
You Pay: $28,735.00

This item is controlled on the U.S. Commerce Control List set forth in the Export Administration Regulations or the U.S. Munitions List set forth in the International Traffic in Arms Regulations, and may require a license or other authorization from the U.S. Government to be exported from the United States. Without limitation, parties purchasing from B&H are solely responsible for determining applicable export licensing requirements and for obtaining any licenses or other authorizations from the appropriate agencies of the U.S. Government that are necessary for exporting the item, such as the U.S. Department of Commerce or the U.S. Department of State

Product Highlights
  • 50-21000m Ranging, +/-5m Accuracy
  • Integrated 3-Axis Compass/Inclinometer
  • Built-In GPS Receiver
  • RS-232 Serial Communication Port
  • 8x Magnification, 7° Field of View
  • Range Gating 100-6000m, 100m Accruacy
  • NVD Invisible, Single-Pulse 1540nm Laser
  • First/Last Target Selection
  • Multi-Line LED Display
  • Mil-Std 810G Compliant

The LRB 21K 8x43 Rangefinder Biocular from Newcon Optik is a handheld electro-optical device built for measuring distances up to 21 kilometers away. A fully multicoated optical path, infrared laser pulse emitter, and pulse wave receiver are capable of measurement accuracy to within one meter. This configuration of the laser rangefinder binocular (LRB) integrates a built-in three-axis compass, inclinometer, and GPS receiver to calculate a range of useful data about the target.

This rangefinder's eye-safe 1540nm infrared laser is invisible to night vision devices, helping military and law enforcement personnel to maintain covert posture while operating the LRB in the field. Two selectable reticle options, multi-line LED overlay, and external power supply option help make the LRB 21K a full-featured long-range rangefinder for a wide range of tactical, navigational, and civil engineering applications.

Several measurement modes enable the operator to select the LRB 21K functions specific to their task. As well as simple data measurements like linear distance, direction, or elevation, this rangefinder is also capable of integrating multiple sensor readings to calculate complex measurements like true distance, azimuth, elevation, GPS coordinate triangulation, and distance between two targets. Using the LRB's range gating function, an operator can reject measurements not within the user-defined target range. By ignoring objects outside that measurement range, Gating Mode helps the operator pinpoint their target when it is set among other objects in the visual scene.

In addition to the impressive 21-kilometer maximum ranging distance and sophisticated circuitry, two features that define the LRB 21K are the mil-spec housing and the RS-232 interface port. The ability to transmit serial data from the LRB to a computer allows the operator to mark waypoints, log GIS information, and utilize LRB data in open source platforms. The LRB's oversized interface buttons and threaded tripod mount provide a user-friendly experience that will come in handy while wearing gloves and during extended-observation and surveying tasks. Further enhancing the construction features are a shockproof chassis and weatherproof sealing that comply with Mil-Std 810 performance standards.

Optical Performance
  • 8x magnification, 43mm objective diameter, 7° field of view
  • 55-22,966 yd (50-21,000m) range with ±5.5 yd (5m) accuracy
  • Class 1 eye-safe single-pulse erbium glass infrared laser
  • 1540nm laser wavelength is invisible to night vision devices
  • ±4 diopter adjustment range
Use and Handling
  • Dedicated First/Last target selection buttons
  • Gating mode for setting the minimum target range
  • RS-232 port for serial data communication with computer
  • Powered by 2CR5 battery or external power supply
  • Multi-line LED display
  • 1/4" tripod mount
Construction Details
  • Mil-Std 810G weatherproof/shockproof housing
  • -31 to 122°F (-35 to 50°C) operating temperature
  • 8.9x8.6x4.3" (22.5x22x11 cm) dimensions
  • 3.6 lb (2.2 kg) weight
Prism Type Not specified by mfr
Magnification 8.0x
Objective Lens Diameter 43 mm
Angle of View
Laser Type Class 1 erbium glass diode, 1540 nm
Beam Divergence 1.0 mrad (at 80% power level)
Resolution Not specified by mfr
Metering Range/Accuracy 55 - 22,966 yd (50 - 21,000 m) / ±5.5 yd (5 m)
Gate 109 - 6,562 yd (100 - 6,000 m) range / ±109 yd (100m)
Exit Pupil Diameter Not specified by mfr
Eye Relief Not specified by mfr
Weatherproofing Mil-Std 810G
Tripod Socket 1/4"
Computer Connection RS-232
Power Source (1) 2CR5 battery, 4-6V external
Dimensions 8.9 x 8.6 x 4.3" (22.5 x 22 x 11 cm)
Weight 3.6 lb (2.2 kg)
Newcon Optik LRB 21K 8x43 Rangefinder Biocular
  • One Year Limited Warranty
  • Batteries & Power

    Always keep a spare battery handy so you won't get caught without power.

    General Brand -  2CR5 6v Lithium Battery
    • You Pay: $5.95

    Cleaning & Anti-Fog

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    Help keep your optics clean & fog free with these tools.

    Pearstone -  Microfiber Cleaning Cloth, 18% Gray (7 x 7.9")
    • You Pay: $4.99

    Cases, Covers, Wraps

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    Protect your equipment with a bag or case.

    Field Optics Research -  BinoPod Harness System (Camo)
    • You Pay: $59.95
    Usually ships in 7-14 business days i Estimated arrival at B&H is 7-14 business days. An authorization for this product will be processed upon placing the order. You will be charged for this item at the time of Shipment.

    Straps & Harnesses

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    Strap your device securely & carry in comfort.

    OP/TECH USA -  Mini Loop Strap-QD (Black)

    Rangefinder Tether

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    Keep a rangefinder or other accessory close at hand yet secure and out of the way.

    Nikon -  Retractable Rangefinder Tether (Black)
    • You Pay: $14.95

    Mounts and Supports

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    Increase your working flexibility with additional mounting options.

    Bushnell -  Car Window Mount & Tabletop Tripod
    • You Pay: $14.99
    View all Accessories
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