$100 - $150

WD-35634-08 EcoTestr™ TDS1 Waterproof Pocket Tester by Oakton

Designed to be durable and easy to use

These economical, simple-to-use pocket testers quickly measure conductivity, TDS, or salinity levels accurately while simultaneously displaying the temperature. A large dual-line display makes viewing measurements easy and features indicators for measurement stability, calibration, and battery life.

Additional features include a long-lasting, durable electrode with polymer reference electrolyte, auto recognition of calibration standards, and self-diagnostics. The IP67-rated housing features an easy-to-grip design and floats if accidentally dropped in water when sensor cap is on. The testers, powered by four AAA batteries, can operate up to 400 hours continuously. The unit will auto power-off after 8 minutes of nonuse to conserve power.

• View measurements clearly on large LCD
• Rugged IP67-rated housing is waterproof, dustproof, and floats in water
• Leakproof cap with fill line functions as a sample/calibration and hydrating cup
• Secure attach a lanyard to prevent losing or dropping in the field
• Auto shutoff extends battery life

TK9970-Z EndPoint ID Orthophosphate Test Kit, 0-80 ppm as PO4 by AquaPhoenix

In boiler water treatment, orthophosphate is primarily added to control scaling as it reacts with calcium hardness. Orthophosphate also works well has a corrosion inhibitor. Our EndPoint ID test kit includes filtering equipment, which is recommended before testing. Each kit is packaged in a durable plastic case and includes all items to complete approximately 60 tests.

EndPoint ID Test Kits Feature:

• Photographic instructions to simplify testing
• Quick reference safety and testing icons for best practices
• Waterproof and chemical-resistant instructions
• Private-labeled reagent labels and test kit box

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

Measuring Range: -58 to +302°F

93607 Tripod, Heavy Duty Alt-Azimuth by Celestron

The Celestron Heavy-Duty Alt-Azimuth Tripod is really useful when you want to do hand's-free viewing through giant binoculars or a spotting scope. It is also a nice match for small to medium-sized telescopes, like the Celestron C90 or C5.

The aluminum legs of the Celestron Heavy-Duty Alt-Az Tripod are fully adjustable to best match the height you require. Minimum height is 32 inches, and the maximum extended height is 45 inches. A center brace stabilizes the legs in place when the tripod is open, and a metal accessory tray is fitted to the center of the brace, or spreader bars, allowing you to store a few accessories close at hand.

The alt-azimuth tripod head is made of metal and is controlled in two ways. To make large adjustments in altitude, simply grab the mount and move it to the desired location. A friction clutch installed in the head will hold it in position. Large movements in azimuth can be achieved by loosening the azimuth lock and then manually moving the mount. It can spin 360° with the lock disengaged. Small movements are best made by turning the slow motion control handles. They work great for following objects as they move across the night sky.

Equipment is mounted on the alt-az tripod head by a 1/4"-20 thread mounting bolt that is captured in the mounting plate. The mounting bolt is free to slide along a slot cut in the mounting plate, allowing the user to adjust the forward and aft location of the telescope, spotting scope, binocular mount adapter, or camera. The purpose here is to keep your equipment centered over the tripod as best you can. Refractor telescopes and cameras with long lenses will be less stable if they sit too far forward, so the ability to make adjustments to the balance point is a nice option.

• A heavy-duty alt-azimuth mount for use with binoculars, spotting scopes or telescopes.
• Adjustable aluminum legs provide a minimum height of 32" and a maximum height of 45".
• A sliding 1/4"-20 mounting bolt lets you adjust the balance point of your equipment for optimum stability.
• Make slight adjustments to altitude & azimuth with intuitive slow motion handles.
• Weigh capacity of approximately 10 pounds.

72252 Ultima 8x42mm Porro Binocular by Celestron

See it and take it all in, wherever you are. The Ultima 8x42mm binocular has a wide 7.5° field of view, nearly four hundred feet wide when measured at a distance of 1,000 yards. It's the perfect choice for watching deer move through a meadow or a home run ball fly into the bleachers without moving your binoculars. But the possibilities don't stop there. Ultima binoculars are great for almost any activity, including sporting events, sightseeing, birding and wildlife observation, hiking, and more!

These classically styled binoculars use their Porro prism optical design to provide optimal image clarity and depth of field. Their widely spaced objective lenses enable enhanced triangulation between binocular and subject, presenting the observer with a rich, three-dimensional image that only traditional Porro prism binoculars can offer.

Coatings and Prisms

Ultima binoculars feature fully multi-coated optics. A binocular can be considered "fully multi-coated" when all 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 Ultima binoculars are made of high quality BaK-4 glass 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 Body

A durable, synthetic rubber-armored, aluminum housing protects your Ultima binoculars from damage without weighing you down. Viewing through Ultima binoculars is comfortable for both eyeglass wearers and non-eyeglass wearers, thanks to the synthetic fold-down rubber eyecups. What's more, the binocular is fully waterproof and filled with dry nitrogen gas to prevent internal fogging of lenses. Ultima binoculars can stand up to even the toughest outdoor conditions.

Perfect for a Variety of Uses

The Ultima 8x42mm binocular features a close focus of just 13 feet, making it perfect for birders and wildlife observers, general naturalists, museum visiting, and any other activities where close-up viewing may be necessary. For distance viewing, the 8x42mm model offers an ultra-wide field of view so you can easily follow subjects such as birds or insects in flight, athletes on the sporting field or performers on a stage as they move with less need to move the binoculars.

Ways to Observe

Keep your Ultima binocular at the ready with the comfortable included neck 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 case for storage and transport.

Accessories Included

Ultima includes an adjustable neck strap that you can customize to be most comfortable for you. The binocular also includes a protective soft case, and eyepiece and objective covers for storage and transport, so you can take it anywhere with confidence.

• Porro prism binoculars provide an enhanced three-dimensional image of the subject
• Wide 7.5° field of view allow you to see the entire scene all at once
• BaK-4 prisms and fully multi-coated optics deliver maximum light transmission through the optical path
• 13' close focus for detailed observation of subjects in close proximity
• Ergonomic body with synthetic rubber armor and a non-slip grip
• Tripod adaptable for extended viewing sessions
• Eyeglass friendly with generous eye relief and comfortable rubber eyecups

TK2731-Z Chlorine FAS-DPD Test Kit, Free, 1 drop = 0.2 or 0.5 ppm (liquid potassium iodide) by AquaPhoenix

EndPoint ID test kits are packaged in a durable plastic case and include all reagents, equipment and instruction card to complete approximately 60-75 tests. Color coded reagent caps match the color bar on the instruction card for easy identification when running multiple tests and our photographic, step-by-step instructions keep testing simple and help users easily identify color changes.

GHS1210 Exploding Bomb Hazard Class Pictogram Label (1"), 1120/Pad by GHS Safety

Provide your employees with a quick and easy way to identify Personal Protective Equipment & Hazard Class requirements. GHS labels are manufactured on a high gloss paper stock with pressure sensitive adhesive for ease of application and longer durability. Designed to be used with you in house labeling system where color printing isn't an option.

Make clean, professional looking labels in minutes. Labels are printed in sheets and padded with a cardboard backer for ease of use. Each sheet is perforated to allow removal when completed.

Labels are sold in pads. 1" diameter labels come 1,120 labels per pad. 1/2" diameter labels come 1,820 per pad.

SI20UL01UN12 Si-20 Mini Condensate Removal Pump (5gph) 120V by Sauermann

Slim design for a quick installation inside the air conditioning unit.

• Slim Design
• Incredibly Quiet
• Rubber Dampers
• Drain Safe Device

Kit content

• 1 Si-20 Piston Pump
• 1 Detection Unit - SI2958, 2' cable
• 1 Anti-Vibration Rubber Dampers (2)
• 1 Clear PVC Tubing, 1/4" i.d. fitted with a Drain Safe Device
• 1 Power Cable, 5' (2 power wires, 2 safety wires)
• 1 90 Deg Rubber Elbow, 19/32" i.d. x L 6"
• 1 Vent Tube, 5/32" i.d. x L 2 15/16"
• 1 Split Connector, 1/2" - 10/16"
• 1 Double Wire Clamps (3)
• 1 Tie Wraps (3)

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

Measuring Range: -58 to +302°F