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Brunton Granulometric Scale Grain Size Card

Brunton Grain Size Card for geologists, made of durable, waterproof, transparent material. Features 10 grain size classifications, a PHI scale, and an integrated millimeter ruler for accurate field measurements.

Description

The Brunton Grain Size Card is an essential field tool for geologists, designed for the visual classification of sediment based on grain size and shape. Made from durable, waterproof, and transparent material, this lightweight card withstands all weather conditions. It features both positive and negative sides to facilitate accurate grain size comparisons and direct readings in the field.

SPECIFICATIONS:
➢ 10 grain size classifications, including the PHI scale
➢ Visual reference for grain shapes
➢ Integrated millimeter ruler for direct measurement

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DescriptionBrunton Grain Size Card for geologists, made of durable, waterproof, transparent material. Features 10 grain size classifications, a PHI scale, and an integrated millimeter ruler for accurate field measurements.The Brunton Lite Tech 8×22 Monocular offers 8x magnification and multi-coated optics with BaK-4 prisms for sharp, bright images. Compact, lightweight, and ergonomic, it's perfect for outdoor observation, sports, or everyday activities. It fits easily in your pocket and can be comfortably operated with one hand.The Brunton Omnisight is a rugged optical compass that delivers fast, accurate horizontal bearings with multiple integrated scales—Azimuth, Quadrant, MILS, and reciprocal. Built from CNC-machined aluminum with LED lighting and up to 10x magnification, it’s ideal for geology, surveying, and field navigation—even in low-light conditions.Brunton TruArc No. 10 Compass with global needle, tool-free declination adjustment, and magnified readout. Compact, lightweight, and built for precision in demanding conditions. Made in the USA, ideal for explorers and professionals.The Brunton Ball & Socket Mount provides stable, tripod-based support for Brunton Transit compasses, allowing precise azimuth and inclination measurements. Its durable, non-magnetic design ensures accuracy in field conditions—ideal for geologists and surveyors.Brunton Transit 5020 Compass – Precision compass for strike and dip measurements, built with a rugged CNC-machined body, flat non-slip base, and high-accuracy needle system. Ideal for geologists and field professionals seeking durability, stability, and waterproof performance in challenging environments.
ContentThe Brunton Grain Size Card is an essential field tool for geologists, designed for the visual classification of sediment based on grain size and shape. Made from durable, waterproof, and transparent material, this lightweight card withstands all weather conditions. It features both positive and negative sides to facilitate accurate grain size comparisons and direct readings in the field. SPECIFICATIONS: ➢ 10 grain size classifications, including the PHI scale ➢ Visual reference for grain shapes ➢ Integrated millimeter ruler for direct measurementThe Brunton Lite Tech 8x22 Monocular combines power, portability, and optical clarity in a compact and ergonomic design. Thanks to its high-quality BaK-4 prisms and multi-coated optics, it delivers sharp and clear images, ideal for hiking, sporting events, or field studies. Its compact design fits easily into your pocket, and the ergonomic structure offers comfort when held with one hand. With a close focus of 3 meters, it is a practical and versatile tool for everyday outdoor use. SPECIFICATIONS: ➢ Brand: Brunton ➢ Model: Lite Tech 8x22 ➢ Magnification: 8x ➢ Objective diameter: 22 mm ➢ Prism type: BaK-4 ➢ Close focus: 3 m (10 feet) ➢ Eye relief: 12 mm ➢ Exit pupil: 2.4 mm ➢ Dimensions: 3.3 x 8.4 cm ➢ Weight: 57 g ➢ Included accessories: Cleaning cloth, wrist strap, protective case FEATURES: ➢ Bright and clear image thanks to multi-coated optics and BaK-4 prisms ➢ Ergonomic design for a comfortable and secure grip ➢ Compact and lightweight: fits in any pocket ➢ Ideal for outdoor observation, sports, and everyday use ➢ Includes case and wrist strap for safe transportBrunton Omnisight is a spot-through optical compass that integrates multiple measurement scales into a single portable instrument, offering fast and precise horizontal bearing readings in demanding environments. Its design allows for both direct and reciprocal readings, and it supports multiple scale types including Azimuth (360°), Quadrant (90°), and MILS (0–6400 points). Built with a solid CNC-machined anodized aluminum housing, the Omnisight ensures durability and ruggedness. A silicone cover adds comfort and shock absorption during use. With its adjustable magnifying lens and integrated LED lighting system, this compass is ideal for low-light conditions. It can be used as a standalone instrument or mounted on a Jacob’s Staff or non-magnetic tripod, making it a versatile and essential tool for professionals in geology, surveying, mapping, and navigation. SPECIFICATIONS: ➢ Dimensions: 76.3 × 8.8 × 1.3 cm (2.5" × 3.5" × 0.5") ➢ Weight: 335.6 g (11.8 oz) ➢ Angular resolution: 1° ➢ Measurement range: 180° FEATURES: ➢ High-precision horizontal bearing measurement through direct optical sighting. ➢ Four integrated reading scales: ■MILS scale: 0 to 6400 points ■Quadrant: 0° to 90° ■Direct azimuth: 0° to 360° ■Reciprocal azimuth: 0° to 360° ➢ Dual display on the top dial with 5° graduations. ➢ Sapphire jewel bearing with anti-static damping fluid for smooth needle movement. ➢ Adjustable lens with up to 10x magnification for more accurate distance readings. ➢ CNC-anodized aluminum housing, robust and impact-resistant. ➢ Ergonomic silicone cover, non-slip and shock-absorbing. ➢ Available models for the Northern Hemisphere, Equatorial, and Southern Hemisphere. ➢ Compatible with Jacob’s Staff or non-magnetic tripod via integrated thread. ➢ Built-in LED lighting, ideal for use in low-visibility conditions. ➢ Includes a protective leather case for safe and professional transport. ➢ Made in the USA, in Riverton, Wyoming.The Brunton TruArc No. 10 Compass is an advanced, reliable, and durable navigation tool—ideal for explorers, mountaineers, and professionals who require precision in demanding conditions. Its mirrorless design features a global needle and multiple integrated scales, allowing for versatile use anywhere in the world, even alongside GPS systems. Compact, lightweight, and made in the USA, it combines ergonomic comfort with high functionality to deliver accurate readings on every expedition. SPECIFICATIONS: ➢ TruArc™ Global Needle: Tilts up to 20° for stable performance worldwide. ➢ Tool-free declination adjustment: Quick and easy way to align magnetic north with true north. ➢ Magnified readout: Increases precision without compromising readability. ➢ Integrated Romer scales: Maximum latitude and longitude accuracy for GPS use. ➢ Meridian lines: Help align with map grid lines during trip planning. ➢ Reversible inch and millimeter scales: Accurate for detailed map work. ➢ Double-gauge ergonomic baseplate: Durable and comfortable to hold. ➢ Removable high-visibility cling: Enhances performance in low-light conditions. ➢ EverNorth™ Magnet: Highly resistant to long-term demagnetization. ➢ 1° azimuth ring resolution: Provides precise and reliable readings. ➢ Manufactured in Riverton, Wyoming, USA. ➢ Dimensions: 13.2 x 7.1 x 1.2 cm ➢ Weight: 48 g (1.7 oz)The Brunton Ball & Socket mount is an essential accessory for users seeking greater stability and precision when taking measurements with Transit-style compasses. Specifically designed for Brunton models, this mount allows the compass to be securely attached to a tripod or monopod, enabling highly accurate azimuth and inclination readings without magnetic interference. Its compact and durable design, made from non-ferromagnetic materials, makes it ideal for geologists, surveyors, and field professionals who require maximum accuracy in demanding environments. SPECIFICATIONS: ➢ Materials: High-strength aluminum and brass ➢ Thread type: Standard 1/4" – 20 (compatible with most tripods and monopods) ➢ Compatibility: Exclusive for Brunton Transit compasses ➢ Function: Ball-and-socket mount for free orientation and inclination adjustmentThe Brunton Transit 5020 Compass combines the classic precision of traditional navigation instruments with a modern, rugged design—ideal for professionals in geology, engineering, and demanding fieldwork. It retains traditional strike and dip measurement functions while improving stability for low-angle readings thanks to its flat base and non-slip silicone foot. Its CNC-machined, hard-anodized body ensures durability, while sealed internal components provide enhanced resistance to water and dust. Comes with a high-quality leather case. SPECIFICATIONS: ➢ Measurement type: Strike & Dip (Bearing and Inclination) ➢ Azimuth scale: 0° to 360°, with ±0.5° accuracy and 1° graduations ➢ Internal clinometer: ±0.5° with 1° graduations ➢ Percent grade scale: 5% increments ➢ Magnetic declination adjustment: ±180° ➢ Dimensions: 7.9 x 7.1 x 3.4 cm (3.1” x 2.8” x 1.3”) ➢ Weight: 195 g (6.9 oz) FEATURES: ➢ CNC-machined and hard-anodized body for enhanced durability ➢ Flat base with non-slip silicone foot for stable low-angle readings ➢ Alignment mirror for accurate horizontal and vertical angle readings ➢ Long and short sighting arms for precise measurement taking ➢ High-precision NdFeB disk magnet with excellent demagnetization resistance ➢ Induction damping for fast needle stabilization ➢ Sapphire bearing ensures smooth and long-lasting needle movement ➢ Needle lock button for securing or releasing the needle as needed ➢ Sealed internal components with O-ring for superior dust and moisture protection ➢ Compatible with tripod or Jacob’s Staff ball adapter ➢ Comes with a protective leather field case ➢ Available in Azimuth format (0–360°)
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