145 products were found matching your search for Ler in 4 shops:

Out of print since 1985, these three classic novels form a trilogy that chronicles the history of an alternate human race, the Ler, from their origins as a bioengineered "superhuman" race on Earth to their complex civilizations in space. Together, the books form a challenging examination of what it means to be human.

A versatile and innovative solution for photographers, the Novoflex LEM/LER Adapter seamlessly integrates Leica R-mount lenses with a Leica M camera body. This high-quality adapter is specifically designed to facilitate the use of Leica R lenses on Leica M (Typ 240) and Leica M-P (Typ 240) camera bodies, expanding your photographic possibilities. Constructed with precision and durability in mind, this adapter is 6-bit coded, a feature that automatically brings up the R Lens Selection Menu on your Leica M camera. This user-friendly feature ensures a smooth and efficient lens swapping experience, allowing you to make the most of your Leica R lens collection. Whether you're a professional photographer or a passionate hobbyist, the Novoflex LEM/LER Adapter is an essential tool for enhancing your Leica M camera's versatility. Experience the joy of capturing stunning images with your Leica R lenses on a Leica M body, thanks to this durable and high-quality adapter.

Over the years, astrophotography enthusiasts and stargazers have sought equipment that enhances their celestial viewing experience, and the 6.5mm 82 Degree Series LER Waterproof Eyepiece from Explore Scientific stands as a testament to this pursuit. This high-quality eyepiece is engineered with an impressively long eye relief of 16.8mm, ensuring a comfortable and immersive observation session for all users, including those who wear eyeglasses. The generous eye relief allows for the full appreciation of the eyepiece's ultra-wide 82-degree apparent field of view, offering a panoramic vista of the night sky.Crafted for durability and versatility, the 6.5mm focal length of this eyepiece is adept at producing high magnifications, ideal for detailed observations of the Moon's craters, the dynamic surfaces of planets, and the delicate dance of binary stars. When paired with near-perfect atmospheric conditions, this eyepiece is capable of unveiling astonishing planetary details and intricate structures within deep-sky phenomena such as nebulae and galaxies.The innovative design of this eyepiece incorporates multi-element optics, utilizing low-dispersion glass with a high refractive index to achieve superior light transmission. Edge-blackened optics and fully multi-coated lenses with Enhanced Multi-Layer Deposition (EMD) coatings work in concert to maximize the potential of your telescope. This meticulous construction results in sharp contrast, high resolution, and crisp definition, allowing the celestial wonders you seek to be captured with unparalleled clarity.User-friendly and designed for the rigors of outdoor use, the 6.5mm 82 Degree Series LER Waterproof Eyepiece is gas-purged and O-ring sealed, creating a waterproof and fog-proof environment. This robust construction ensures that the eyepiece remains impervious to internal fogging and protects against contaminants such as fungus and dust. The waterproof feature makes this eyepiece a reliable companion for astronomers who venture into damp or humid environments, ensuring that the viewing experience remains pristine in all conditions.The broad field of view not only captivates the observer but also facilitates the use of averted vision techniques. This method of observation, where one looks slightly to the side of the target object, allows fainter images to be seen more clearly by utilizing the more light-sensitive parts of the eye. This feature is particularly beneficial for spotting elusive celestial objects and enhancing the overall stargazing experience.In summary, the 6.5mm 82 Degree Series LER Waterproof Eyepiece is a testament to Explore Scientific's commitment to providing astronomers with equipment that is innovative, reliable, and user-friendly. Whether you're a seasoned astronomer or a passionate beginner, this eyepiece is designed to elevate your astronomical observations to new heights.

With its exceptional 15mm long eye relief, the 8.5mm 82 Degree Series LER Waterproof Eyepiece from Explore Scientific offers a high-quality and comfortable viewing experience for all astronomy enthusiasts, including those who wear eyeglasses. The generous eye relief ensures that users can enjoy the expansive full field of view without sacrificing comfort or missing out on any celestial spectacle.Crafted for precision and clarity, this eyepiece boasts an 8.5mm focal length, ideal for producing high magnifications necessary for detailed observations of the Moon's craters, the vibrant bands of Jupiter, or the delicate dance of binary stars. Under near-perfect atmospheric conditions, this innovative eyepiece reveals intricate planetary details and invites users to delve into the depths of deep-sky wonders such as nebulae and galaxies with enhanced clarity.The superior light transmission of this versatile eyepiece is achieved through its multi-element design, featuring edge-blackened optics constructed from low-dispersion glass with a high refractive index. Each lens is treated with fully multi-coated durable enhanced multi-layer deposition (EMD) coatings, ensuring maximum light capture and delivering images with sharp contrast, high resolution, and crisp definition.As part of Explore Scientific's acclaimed 82 Degree Series, this eyepiece is designed with an ultra-wide 82-degree apparent field of view, immersing observers in a panoramic celestial experience that naturally promotes relaxation and extended observation sessions. This broad field of view is particularly advantageous for employing averted vision techniques, which enhance the visibility of faint objects by utilizing the more light-sensitive areas of the eye.Durability and user-friendliness are at the core of this eyepiece's design. It is gas-purged and O-ring sealed, offering a waterproof and fog-proof environment that protects against internal condensation and prevents the ingress of contaminants such as fungus and dust. This innovative sealing makes the eyepiece exceptionally easy to clean and maintain, ensuring a pristine viewing experience every time.The 8.5mm 82 Degree Series LER Waterproof Eyepiece is an indispensable tool for the dedicated astronomer seeking to explore the night sky with unparalleled comfort, clarity, and protection against the elements. Whether observing from a damp meadow or under the crystal-clear canopy of a desert sky, this eyepiece is engineered to perform and built to last.

Discover the unparalleled viewing experience offered by the 4.5mm LER eyepiece from Explore Scientific's 82 Degree Series of Argon-Purged Waterproof Eyepieces. Designed with a generous eye relief of 15.9mm, this high-quality eyepiece ensures comfortable viewing for all observers, including eyeglass wearers, by allowing them to enjoy the full field of view.This versatile eyepiece, with its 4.5mm focal length, is ideal for observing celestial objects that require high magnifications, such as the Moon, planets, and binary stars. Under near-perfect atmospheric conditions, this eyepiece can reveal stunning planetary details that will leave you in awe. Its 4.5mm size also makes it perfect for detailed examinations of the intricate structures within deep sky objects like nebulae.Crafted with innovative technology, this eyepiece features edge-blackened optics made of low-dispersion glass with a high refractive index. Each lens is fully multi-coated with durable enhanced multi-layer deposition (EMD) coatings. This combination ensures superior light transmission, enabling your telescope to capture the celestial wonders with sharp contrast, high resolution, and crisp definition.Like other eyepieces in Explore Scientific's 82 Degree Series, this ocular boasts an ultra-wide 82-degree apparent field of view that immerses observers in the cosmos and promotes relaxation at the eyepiece. This broad field of view encourages the use of averted vision, a technique that involves looking slightly to the side of a target object rather than directly at it. This method is particularly helpful when observing faint objects, as it allows you to see fainter images by utilizing a part of your eye that is more sensitive to light.All Explore Scientific Waterproof Eyepieces are gas-purged and O-ring sealed, creating a waterproof environment that is impervious to internal fogging and prevents contaminants like fungus and dust from entering the ocular housing. This reliable and durable design makes cleaning the eyepiece a breeze, ensuring a long-lasting and enjoyable viewing experience.

While maintaining the highest standards of quality and performance, the AIM Sports 2-7x32 LER Handgun Scope, featuring a sleek matte black finish and a precise duplex reticle, is a standout in the world of firearm accessories. Engineered for superior light transmission, this scope boasts blue fused multi-coated lenses. These lenses not only enhance visibility by reducing internal reflections but also offer robust protection against scratches, ensuring long-lasting durability.Designed to withstand heavy recoil, the AIM Sports 2-7x32 LER Handgun Scope is a testament to resilience. Crafted from a single piece of aircraft-grade aluminum, this scope embodies strength and stability. The one-piece body is meticulously purged and charged with nitrogen, a process that guarantees fog-proofing, enhancing your shooting experience in various weather conditions.Further enhancing its versatility, this handgun scope comes with a generous 10.5" eye relief, providing comfortable viewing even during extended periods of use. The scope also includes rings and features a 1" center tube, ensuring easy mounting and alignment on your firearm. In the realm of shooting and hunting equipment, the AIM Sports 2-7x32 LER Handgun Scope stands as a reliable, high-performance accessory, designed to meet the demands of both casual shooters and seasoned hunters.

The Scale TAC-ler Plus water conditioner is compatible with all tankless and conventional tank-style water heaters. Hard water mineral scale accumulating on heating elements slowly reduces water heater performance. It affects both heat transfer and water pressure. Preventing mineral scale formation ensures your water heater's optimal performance, increases service life and possibly prevents premature failure. Scale TAC-ler Plus will prevent future mineral build-up. Scale TAC-ler Plus is installed on the cold water inlet of the water heater, where it treats the water entering the water heater. It will provide protection for flow rates up to 6 Gal. per minute. Scale TAC-ler salt-free water conditioners use a specialized polymeric bead medium that serves as a catalyst for the formation of calcium and magnesium carbonate nano-crystals. Instead of forming hard mineral scale on surfaces, these microscopic crystals of calcium and magnesium carbonate remain suspended in the water and pass through to the drain. This process is called Template Assisted Crystallization or TAC. A university study determined that TAC technology was the most effective of all non-salt water conditioners at preventing mineral scale, with reduction levels consistently in excess of 90%.

Scale TAC-ler Replacement Cartridge is a replacement filter for use with the Stiebel Eltron Scale TAC-ler or Scale TAC-ler Plus water conditioner. It can also be used with most brands of Big Blue 4.5 in. x 20 in. filter housings and many other TAC filters of the same size. Scale TAC-ler Plus water conditioner works with all tankless and tank water heaters to prevent hard water scale, providing protection for flow rates up to 6 Gal. per minute. Using a process called Template Assisted Crystallization or TAC, a specialized polymeric bead medium forms calcium and magnesium carbonate nano-crystals which remain suspended in the water and pass through to the drain instead of forming hard mineral scale on surfaces.

The LER-4027-BAV 40U 27" Depth Enclosed Stand Alone Floor Rack with Accessory Bundle (Not Installed) is a robust and versatile solution for your electronic equipment storage needs. This stand-alone rack, constructed from fully welded, certified U.S. 16-gauge steel, boasts a 14-gauge base reinforced at all load-bearing junctions, offering strength equivalent to 11-gauge steel. The rack features a black wrinkle powder epoxy finish, adding a sleek touch to its robust design. The front and rear beveled edge corners add to the aesthetic appeal while the upper and lower front vents ensure optimal airflow. The solid steel front door, included in the accessory bundle, comes with a key lock for enhanced security. The rear of the rack features removable knockout panels above and below the door, with combination EKOs for conduit (1/2"- 3/4" and 1"-1-1/2") and KOs for wireless antennae (1/2"). The rack also includes a removable blank project panel below the door. The standard model comes with a recessed door with vents and a key lock that can swing either left or right. The welded side panels feature vents at the top and bottom, while the open access bottom includes a 10-32 threaded grounding stud in the corner, 3/8"-16 threaded T-nuts for leg levelers (included in the accessory bundle), and holes for anchor bolts. The opening measures 22.88"D x 19.94"W. The configurable top with closure panels features a 7U opening with riveted 10-32 threaded rails on 19" E.I.A. spacing. It includes two black closure panels (3U, 4U) and a 6"D rear conduit plane with combination EKOs for conduit (1/2"-3/4" and 1"-2"), KOs for wireless antennae (1/2"), and room to field-punch an opening for 4" dia. conduit. The rack comes with a comprehensive accessory bundle, including an additional pair of rails, two 32"L power strips each with 12 (15A/20A) outlets, surge suppression, a 12' cord and NEMA 5-20P plug, a 7U fan panel with four whisper fans, straight bars and 4" offset bars for cable management, a 40U vertical cable manager, heavy-duty leg levelers, a magnetic vent blocker kit, hook and loop cable wraps, and two extra bags of rack screws. This stand-alone rack is EIA/TIA compliant, RoHS compliant, and UL 2416 Listed in the U.S. and Canada, ensuring it meets the highest standards of safety and quality. The LER-4027-BAV 40U 27" Depth Enclosed Stand Alone Floor Rack with Accessory Bundle (Not Installed) is the ultimate solution for secure, organized, and efficient electronic equipment storage.

Why settle for less when you can have the best with the LER-4427-BAV 44U 27" Depth Enclosed Stand Alone Floor Rack? This robust and versatile rack is designed with a fully welded 16-gauge steel frame and a 14-gauge base, reinforced at all load-bearing junctions for maximum support and durability. The strength of this unit is equivalent to 11-gauge steel, ensuring it can handle heavy-duty applications with ease.The rack features a black wrinkle powder epoxy finish for a sleek and professional look. The beveled edge corners on the front and rear add an extra touch of sophistication. The front of the rack includes upper and lower vents for optimal airflow, and a solid steel front door with a key lock for secure access, included in the accessory bundle.The rear of the rack is designed with removable knockout panels in the frame above and below the door, providing combination EKOs for conduit (1/2"- 3/4" and 1"-1-1/2") and KOs for wireless antennae (1/2"). A removable blank project panel is also included in the frame below the door.The sides of the rack are welded with vents at the top and bottom for enhanced ventilation. The bottom of the rack includes a 10-32 threaded grounding stud in the corner, 3/8"-16 threaded T-nuts for leg levelers (included in the accessory bundle), and holes for anchor bolts.The top of the rack is configurable and features a 7U opening with riveted 10-32 threaded rails on 19" E.I.A. spacing. It also includes two black closure panels (3U, 4U), and a 6"D rear conduit plane with combination EKOs for conduit (1/2"-3/4" and 1"-2"), KOs for wireless antennae (1/2"), and room to field-punch an opening for 4" dia. conduit.The rack comes with a comprehensive accessory bundle that includes an additional pair of rails, a power strip with 24 outlets, a 7U fan panel with four whisper fans, straight bars and offset bars for cable management, a 44U vertical cable manager, heavy-duty leg levelers, a magnetic vent blocker kit, hook and loop cable wraps, and two extra bags of rack screws.This stand-alone rack is EIA/TIA compliant, RoHS compliant, and UL 2416 Listed in the U.S. and Canada, making it a reliable and trustworthy choice for your equipment storage needs.

Explore the superior functionality and robust construction of the LER-3527-BAV 35U 27" Depth Enclosed Stand Alone Floor Rack. This high-quality, stand-alone rack is designed with enclosed sides and adjustable rails, offering a sturdy and reliable solution for your electronic equipment storage needs. Constructed from fully welded, certified U.S. steel, this rack boasts a 16-gauge frame and a 14-gauge base, reinforced at all load-bearing junctions. This robust support and strength are equivalent to 11-gauge steel, ensuring the durability to withstand heavy loads. The rack is finished with a black wrinkle powder epoxy, adding an extra layer of protection and a sleek aesthetic.The rack features beveled edge corners on both the front and rear, along with upper and lower vents on the front for optimal airflow. The solid steel front door, included in the accessory bundle, comes with a key lock for secure storage. The rear of the rack offers removable knockout panels in the frame above and below the door, providing easy access for conduit and wireless antennae.The bottom of the rack includes a 10-32 threaded grounding stud, 3/8"-16 threaded T-nuts for leg levelers, and holes for anchor bolts. The top of the rack is configurable, featuring a 7U opening with riveted 10-32 threaded rails on 19" E.I.A. spacing. The rack comes with an accessory bundle that includes an additional pair of rails, two 32"L power strips, a 7U fan panel with four whisper fans, straight and offset bars for cable management, a 35U vertical cable manager, heavy-duty leg levelers, a magnetic vent blocker kit, hook and loop cable wraps, and two extra bags of rack screws.This stand-alone floor rack is EIA/TIA compliant, RoHS compliant, and UL 2416 listed in the U.S. and Canada, ensuring it meets the highest standards of safety and performance. Whether you're setting up a server room or organizing a data center, the LER-3527-BAV 35U 27" Depth Enclosed Stand Alone Floor Rack provides a durable, space-saving, and reliable solution.

Winegard Company CL-SK26 Trav'Ler Communication Cable is a 25' long extension power/communication cable. Connects directly to the existing TRAV'LER power/communication cable. Allows runs up to 50'.

Where professional-grade durability meets versatile functionality, the LER-2432-LRD 24U 32" Depth Enclosed Stand Alone Floor Rack without Rear Door and 4x Adjustable Rails, Black, stands out. This standalone floor rack, measuring 24U x 32"D, is a testament to robust construction, being fully welded from certified U.S. 16-gauge steel, reinforced at all load-bearing junctions with a 14-gauge base. This strength is equivalent to 11-gauge steel, ensuring maximum support and longevity.The rack is finished in a black wrinkle powder epoxy, adding a sleek aesthetic to its sturdy build. It features beveled edge corners at the front and rear, enhancing its professional look. The front of the unit is designed with upper and lower vents, promoting optimal airflow to keep your equipment cool.The frame nutserts are prepped and ready for the addition of an optional surface-mount door, which can swing either left or right. The rear of the unit is equipped with removable knockout panels above and below the door, featuring combination EKOs for conduit (1/2"-3/4" and 1"-1-1/2") and KOs for wireless antennae (1/2").The rack includes a removable blank project panel below the door and a standard model recessed door with vents and a key lock. The rear door can be omitted by adding the "LRD" suffix to the model number. The welded side panels feature vents at the top and bottom, and the bottom of the unit includes a 10-32 threaded grounding stud in the corner, 3/8"-16 threaded T-nuts for optional leg levelers, and holes for anchor bolts.The rack provides ample cable management options with combination knockouts in the top and rear. The configurable top with closure panels features a 10U opening with riveted 10-32 threaded rails on 19" E.I.A. spacing. It includes two black closure panels (3U, 7U) that can be replaced with optional 19" panels for customization.The rack rails are fully adjustable, made from 11-gauge steel with bi-directional numbered RU increments, and finished in black. The unit comes with black pilot point screws with captive washers for quick installation. This product is EIA/TIA compliant, RoHS compliant, and UL 2416 Listed in the U.S.A. and Canada, ensuring it meets the highest industry standards.

Just imagine a storage solution that's as sturdy as it is versatile. The LER-4032-LRD 40U 32" Depth Enclosed Stand Alone Floor Rack, finished in a sleek black, offers a robust and reliable solution for your electronic equipment storage needs. This floor rack, devoid of a rear door, is constructed from fully welded, certified U.S. 16-gauge steel, reinforced at all load-bearing junctions for maximum strength and durability. The rack's 14-gauge base is equivalent in strength to 11-gauge steel, ensuring it can withstand heavy loads. Its black wrinkle powder epoxy finish not only adds to its aesthetic appeal but also enhances its durability. The rack features beveled edge corners at the front and rear, adding a touch of elegance to its robust design.The front of the rack is designed with upper and lower vents for efficient airflow, while the frame nutserts are ready to accommodate an optional surface-mount door, which can swing either left or right. The rear of the rack features removable knockout panels, providing easy access for conduit and wireless antennae installation. The rack's sides are welded and vented at the top and bottom for optimal ventilation. The open-access bottom includes a threaded grounding stud and threaded T-nuts for optional leg levelers, along with holes for anchor bolts. The rack's top is configurable and features combination knockouts for easy cable management. It includes two black closure panels which can be replaced with optional 19" panels for additional customization. The LER-4032-LRD 40U 32" Depth Enclosed Stand Alone Floor Rack comes with 40U fully adjustable rack rails, made of 11-gauge steel and finished in black. These rails are bi-directionally numbered for easy installation and organization of your equipment. This rack is not only EIA/TIA compliant and RoHS compliant, but also UL 2416 Listed in the U.S.A. and Canada, making it a reliable choice for your data center or server room. With its strong construction and space-saving design, this rack is an ideal solution for organizing and protecting your servers, routers, switches, and other networking devices.

Discover the LER-3532-LRD 35U 32" Depth Enclosed Stand Alone Floor Rack, a reliable and robust solution for your electronic equipment storage needs. This sturdy, high-quality rack is designed without a rear door and includes four adjustable rails for maximum flexibility and organization. Constructed from fully welded, certified U.S. steel, this durable floor rack features a 16-gauge frame and a 14-gauge base, reinforced at all load-bearing junctions. This robust construction offers strength equivalent to 11-gauge steel, ensuring reliable support for your servers, routers, switches, and other networking devices. The rack's black wrinkle powder epoxy finish not only enhances its aesthetic appeal but also adds to its durability. The design includes beveled edge corners at the front and rear for added safety, while the front upper and lower vents facilitate optimal airflow to keep your equipment cool.The LER-3532-LRD model is designed with frame nutserts ready to accommodate an optional surface-mount door, which can be ordered separately. The rack also features removable knockout panels in the frame above and below the door, with combination EKOs for conduit (1/2"-3/4" and 1"-1-1/2") and KOs for wireless antennae (1/2"). The rack's bottom is open access and includes a 10-32 threaded grounding stud in the corner, 3/8"-16 threaded T-nuts for optional leg levelers, and holes for anchor bolts. The opening measures 27.88"D x 19.94"W, providing ample space for your equipment.For efficient cable management, the rack features combination knockouts in the top and rear. The configurable top includes a 10U opening with riveted 10-32 threaded rails on 19" E.I.A. spacing and two black closure panels (3U, 7U) which can be replaced with optional 19" panels.The rack's fully adjustable 35U rails are made from 11-gauge steel with bi-directional numbered RU increments, allowing for easy installation and organization of your equipment. The rack is EIA/TIA compliant, RoHS compliant, and UL 2416 Listed in the U.S.A. and Canada, ensuring it meets the highest industry standards. Choose the LER-3532-LRD 35U 32" Depth Enclosed Stand Alone Floor Rack for a durable, space-saving, and high-quality storage solution for your electronic equipment.

Under the banner of robust and reliable storage solutions, the LER-4432-LRD 44U 32" Depth Enclosed Stand Alone Floor Rack stands out with its high-quality construction and space-saving design. This sturdy, stand-alone floor rack is engineered with adjustable rails, offering a versatile solution for organizing your electronic equipment, including servers, networking devices, and other IT equipment.Constructed from fully welded, certified U.S. steel, this 44U x 32"D floor rack boasts a 16-gauge frame and a 14-gauge base, reinforced at all load-bearing junctions. This robust support and strength are equivalent to 11-gauge steel, ensuring the durability to withstand heavy loads.The rack is finished in a black wrinkle powder epoxy, adding a layer of protection and a sleek aesthetic. The design includes beveled edge corners at the front and rear, enhancing its overall durability. The front features upper and lower vents, promoting airflow to keep your equipment cool.The frame nutserts are prepared to accommodate an optional surface-mount door, which can be ordered separately. The rear of the rack features removable knockout panels above and below the door, with combination EKOs for conduit (1/2"-3/4" and 1"-1-1/2") and KOs for wireless antennae (1/2").The rack's sides are welded with vents at the top and bottom, while the bottom includes a 10-32 threaded grounding stud in the corner, 3/8"-16 threaded T-nuts for optional leg levelers, and holes for anchor bolts. The opening measures 27.88"D x 19.94"W, providing ample space for your equipment.Cable management is made easy with combination knockouts in the top and rear. The configurable top features a 10U opening with riveted 10-32 threaded rails on 19" E.I.A. spacing, and includes two black closure panels (3U, 7U) that can be replaced with optional 19" panels.The rack rails are fully adjustable, made of 11-gauge steel with bi-directional numbered RU increments, allowing for easy installation and organization of equipment. The rack is compliant with EIA/TIA and RoHS, and is UL 2416 Listed in the U.S.A. and Canada, ensuring its quality and safety. In summary, the LER-4432-LRD 44U 32" Depth Enclosed Stand Alone Floor Rack is a durable, reliable, and high-quality solution for your data center or server room needs.