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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 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.The Brunton Professional Aluminum Tripod offers stable, non-magnetic support for Transit-style compasses and other field instruments. Lightweight, adjustable, and durable—ideal for geologists and surveyors needing reliable, portable performance.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.Brunton Omniscope is a precision inclinometer for measuring vertical angles and percent grade simultaneously through direct sighting. Built with CNC-machined aluminum and a shock-absorbing silicone cover, it features triple-scale visibility, 10x magnification, and LED lighting—ideal for forestry, geology, and topographic fieldwork.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.
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 measurementBrunton 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 professional aluminum tripod is designed to provide maximum stability and precision when using measuring instruments such as Transit-style compasses. Its construction from non-magnetic materials eliminates any interference that could affect azimuth or inclination readings. With a lightweight yet robust structure, adjustable legs, and non-slip pointed tips, this tripod is an essential tool for geologists, surveyors, and field professionals who require portability, reliability, and compatibility with accessories such as the Brunton Ball & Socket mount. FEATURES: ➢ Adjustable height: from 48 cm to 122 cm (19" to 48") ➢ Materials: High-strength aluminum and brass ➢ Thread connection: Standard 1/4" – 20 (compatible with most devices) ➢ Leg sections: 2-section adjustable legs ➢ Weight: 680 g (24 oz)The 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 transportThe Brunton Omniscope is a precision inclinometer designed to facilitate the simultaneous measurement of vertical angles and percent grade through direct sighting. Its plumb-bob-style clinometer, mounted on high-precision bearings, ensures reliable readings even in demanding environments. Built from CNC-machined anodized aluminum, it offers a robust and durable structure, complemented by a silicone cover that improves grip and absorbs shocks. Ideal for forestry, geological, and topographic use, this instrument can be used as a standalone unit or mounted on a monopod or Jacob’s Staff. Additionally, its integrated LED lighting allows for clear visibility in low-light conditions, making it an essential tool for fieldwork. SPECIFICATIONS: ➢ Dimensions: 76.3 × 8.8 × 1.3 cm (2.5" × 3.5" × 0.5") ➢ Weight: 335.6 g (11.8 oz) ➢ Graduations: 1° scale across all three angular measurement systems FEATURES: ➢ Direct measurement of vertical angles and slopes using a precision optical sighting system ➢ Three simultaneous scales visible in the viewfinder: ■ Left: Slope in degrees (0° to 90°) ■ Center: 66-foot forestry chain (0 to 200 ft) ■ Right: Slope in percent grade (0% to 150%) ➢ Additional side view for slope in degrees and percent grade ➢ Adjustable lens with up to 10x magnification ➢ CNC-machined anodized aluminum housing, impact-resistant and rugged ➢ Non-slip silicone cover, ergonomic and shock-absorbing ➢ Integrated thread compatible with Jacob’s Staff or Brunton monopod ➢ LED lighting system, perfect for use in low-visibility conditions ➢ Includes a protective leather case for safe field transport ➢ Made in the USA, in Riverton, WyomingThe 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 adjustment
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