Astra Optix Laser 6x21mm Rangefinder Monocular Black/Tan. In addition to accurate and fast ranging capabilities the OTX 1600 features fully multi-coated and rain repellent lens coatings to increase light transmission and resolution performance. The clear and functional OLED reticle with multiple brightness adjustability allows for quick target acquisition even in low light conditions. Backed with our Handshake Lifetime Commitment the OTX 1600 rangefinder gives you confidence while out in the field. Specifications for Astra Optix OTX1600 Laser 6x21mm Rangefinder Monocular: Manufacturer: Astra Optix Objective Lens Diameter: 21 mm Magnification: 6 x Eye Relief: 16 mm Field of View Angle: 6 degrees Field of View Linear: 315 ft at 1000 yds Weather Resistance: Rainproof Water Resistance Level: Waterproof Weight: 4.25 oz Width: 1.45 in Length: 3.87 in Color: Black/Tan Battery Type: CR2 Lithium Minimum Focus Distance: 6 yds Minimum Range: 6 yds Battery Life: 10000 Measurements Battery Quantity: 1 Finish: Durable Exit Pupil: 16 mm Operating Temperature: 23 - 120 Fahrenheit Diopter Adjustment Range: -5 - 5 dpt Optical Coating: Multi-Coated Rangefinder Application: Archery Range Response Time: 0.1 seconds Condition: New Package Type: Box Twilight Factor: 11.22 Accuracy: +/- 1 Wavelength: 905 nm Features of Astra Optix OTX1600 Laser 6x21mm Rangefinder Monocular Ultra-Fast Ranging Accurate Long Ranging Capabilities. Reflective Oled Display With Lifetime Warranty Premium Optical Qualityadvanced Technologies Ranging Capabilities: Reflective 1760yds Building 1500yds Tree 1000yds Deer 800yds Range Response Time: 0.10 Seconds Laser Capabilities: 905nm Class I Laser Horizontal Range Target Style +/- 1 Yard Accuracy and Degree Ranging Modes: Horizontal-Angle Corrected Mode Archery Mode Angle Mode with Line of Sight Gun Mode Golf Mode and Scan Mode Housing Type: Durable Composite with Rubber Durability: IPX4 Rainproof Rating Weatherproof and Shockproof Operation Temperature: 23F to +120F Storage Temperature Range: 0F to +140F Battery Type: CR2-3V Optical System: 3 Eyes Full Glass System with 6x Package Contents: Astra Optix OTX1600 Laser 6x21mm Rangefinder Monocular Laser Rangefinder Premium Soft Carry Case Microfiber Lens Cleaning Cloth Adjustable Neck-style Lanyard Astra Optix Decal Sticker CR-2 Lithium Battery Quick Start Guide. Astra Optix OTX1600: OTX1600 Laser 6x21mm Rangefinder Monocular Black/Tan