$200 - $300

Part Number: M1016900PM1

Part Number: M197140LM4

Part Number: M1016100PN

Measuring Range: -100 to +400 °C

72335 Nature DX 10x50 ED Binocular by Celestron

Celestron's award-winning Nature DX binocular gets a major upgrade with the addition of ED objective lenses. Nature DX ED's optical performance rivals that of more expensive binoculars, at a price to fit your budget.

Generous 50mm objective lenses gather lots of light, making these binoculars an ideal choice when viewing conditions are dim, such as at dawn or dusk. With 10x magnification, this model is an excellent choice for long distance viewing or surveillance.

• Extra-Low Dispersion (ED) objective lenses provide high resolution, high contrast images that are virtually free of optical defects like chromatic aberration (color fringing)
• Fully multi-coated optics deliver maximum light transmission through the optical path
• Phase coated BaK-4 prisms produce vivid, true-to-life colors
• Eyeglass friendly - generous eye relief and sturdy, twist-up eyecups with multiple stops
• 8.2' close focus
• Tripod adaptable

ED Objective Lenses

Extra-Low Dispersion (ED) glass virtually eliminates chromatic aberration, also known as color fringing, a visual defect common in binoculars. Nature DX ED delivers razor sharp images, even at the edges of the field of view. ED glass is also known for producing images with outstanding, true-to-life color.

Not all ED glass is created equal. Celestron's high quality ED glass delivers visibly brighter, sharper images compared to non-ED binoculars. The difference is especially apparent in low light conditions, such as at dawn or dusk.

Coatings and Prisms

Nature DX ED features fully multi-coated optics. A binocular can be considered "fully multi-coated" when all air-to-glass surfaces are coated with multiple layers of anti-reflectivity coatings so that the maximum amount of light passes through the glass to the eye.

The prisms inside Nature DX ED are made of high quality BaK-4 glass with phase coatings applied so that more light is reflected off their internal faces and passes through to the eye.

Taken together, the fully multi-coated lenses and BaK-4 prisms maximize light transmission for the remarkably bright, highly detailed images. The ED objective lenses further enhance these features, especially in low light conditions.

The Body

A durable rubber armored, polycarbonate housing protects your Nature DX ED binoculars from damage without weighing you down. Viewing through Nature DX ED is comfortable for both eyeglass wearers and non-eyeglass wearers, thanks to the durable twist-up eyecups. Twist through multiple click stops to find the position that works best for you. What's more, the binocular is fully waterproof and filled with dry nitrogen gas to prevent internal fogging of lenses. Nature DX ED can stand up to even the toughest outdoor conditions.

Perfect for a Variety of Uses

The Nature DX ED 10x50 offers 10x magnification, perfect for up-close views of distant subjects. The 50mm objective lenses are large enough to gather lots of light, while still being lightweight enough to use without a tripod. Of course, the binoculars are also tripod-adaptable (adapter sold separately) for extended viewing sessions or digiscoping (photography through the eyepiece).

Ways to Observe

Carry your Nature ED on the comfortable included strap. It's also tripod-adaptable, so you can mount it on any standard photographic tripod for extended viewing or digiscoping (photography through the eyepiece). The tripod adapter is sold separately. The binocular also includes a protective padded nylon case for storage and transport.

44341 LCD Digital Microscope II by Celestron

The professional-level Celestron LCD Digital Microscope II is a biological LCD microscope at an affordable price. With fully achromatic lens objectives, a mechanical stage, 3.5" full color TFT screen and 5 MP CMOS sensor, the LCD Digital Microscope II allows for high-resolution imaging of specimen slides. The microscope even includes a 1 GB SD card, enough storage to capture over 600 high-resolution images for lab reports, papers, lesson, and more.

From 40x magnification up to 1600x with digital zoom, the LCD Digital Microscope II is ideal for viewing a range of cellular specimens on slides, like most traditional microscopes. The LCD screen rotates 180 degrees so you can easily share your discoveries with others. For an even bigger audience, use the TV output to display on a television or projector.

Great for the discriminating professional or serious hobbyist, the LCD Digital Microscope II is ideal for labs, schools and research institutions.

• Professional digital biological microscope
• Full color 3.5" TFT LCD screen with onboard software
• Built-in 5MP digital camera captures high-resolution images and 30fps SD video of your specimen
• Fully adjustable mechanical stage for easy slide movement
• 180-degree rotating head for easy sharing of images
• Rotating objective lens turret 3 lens powers: 4x, 10x, and 40x
• Camera sensor acts as 10x eyepiece lens, yielding 40x, 100x, and 400x powers
• 4x digital zoom for magnification up to 1600x
• Measuring reticle for comparing specimen sizes
• 1 GB SD card included so you can save up to 620 high-resolution images
• TV output for display on large monitors for classroom or lab environment
• Included accessories: 1 GB SD card, dust cover, rugged canvas carrying case with shoulder strap, 5 prepared slides, 4 plug international AC adapter

Included Accessories

• 1GB SD card
• Dust cover
• Rugged canvas carrying case with shoulder strap
• 5 prepared slides
• 4 plug, multi-country AC adapter

Part Number: F105325PM68

Old Part Number: IM19712
New Part Number: M197140LA

*Please note we can only ship RKI products to customers within the United States

*Please note we can only ship RKI products to customers within the United States

AM-DS0825 8"x25' Duct with Cinch Strap by Schaefer

Industry standard quality ducting for everyday use. Single ply, PVC vinyl-coated polyester fabric with 15-gage spring steel wire helix and external PVC wearstrip. PVC coated polyester fastening cuffs at both ends with industry standard spring buckle cinches. Flame retardant. Available in 8" (15', 25'), 12" (15', 25') and 20" (25') sizes. Integrated carrying bags available with 8"x 25', 12"x 25' and 20"x 25' ducts.

Part Number: M197150LM21

7710-KIT 7710 Rechargeable Hard Hat Safety Light, Cord Free, Lightweight, Includes Charger by Western Technology

The 7710 - HALO LED Hard Hat Light is a Personal Active Safety System that attaches to any hard hat and produces a ring of light around the wearer enabling him or her to See and Be Seen in all directions at all times. The Halo was specifically designed for people working in tough environments.

*Includes 1 x 18650 Rechargeable Lithium-Ion battery.

Features

• Lightweight and cord-free
• Visible over 1/4 mile away in all directions at all times
• Powerful flood task light for improved work efficiency
• Fully illuminates the task area out to the visual periphery
• Eliminates shadows no matter where you move
• Four light modes: Halo, HI-Alert, Task, Dim
• Built tough to survive in rough work environments
• Rechargeable battery runtime of 5.5-34 hrs (mode dependent)
• Connects securely to any hard hat
• IP Rating of 67 to protect against dust, dirt, and water
• Easy single button functionality
• One year warranty

WD-35634-60 PCTSTestr™ 5 Waterproof Pocket Tester by Oakton

Save money by replacing sensor, not the tester

Measuring water quality can be challenging. You need an instrument that is reliable over and over again. With the Oakton Waterproof Testr 5 Series pocket testers, you not only experience consistent reliability, but you also get a pocketful of useful features and benefits. You can also stretch your budget by only replacing the single-junction sensor and keeping the tester.

• Easy to set up and use
• Intuitive interface has self-diagnostic error messages, and stable reading and battery-life indicators
• Unique colored backlight indicates operating mode
• Simple to calibrate with automatic standard recognition USA or NIST
• Rugged IP67-rated housing is waterproof, dustproof, and floats in water with sensor cap on
• Leakproof cap with fill line functions as a sample, calibration, and hydrating cup
• Uses common AAA batteries

Part Number: UCSCAB50

*Please note we can only ship RKI products to customers within the United States

Part Number: M1016100PA