$150 - $200

K-1510A Ammonia Test Kit: CHEMetrics, 0-60 & 60-600 ppm by AquaPhoenix

Kit comes in a plastic case and contains everything needed to perform 30 tests (except distilled water): Refill, Low and High Range Comparators, dilutor snapper cup, micro test tube, and instructions. Shelf-life: Although the Nessler reagent is stable, its high alkali content attacks the glass ampoule. The resulting precipitate interferes with color comparison. The refill has a 5-month shelf life when stored in the dark and at room temperature. This shelf life can be extended by 18 months if the refill is refrigerated.

224800 Orthophosphate Test: Hach Color Disc 0-5 ppm and 0-50 ppm by AquaPhoenix

Method / Chemistry: Color disc / Ascorbic acid. Ranges (mg/L): 0-0.8, 0-4, 0-40. Approx. Number of Tests: 100.

• Results in less than 5 minutes for clean water samples
• Utilizes simple color disc comparator for accurate measurements
• Model PO-19A contains filtration apparatus for turbid samples

Includes one reagent, color disc, comparator box, two viewing tubes, viewing adaptor, two bottles, dropper tube, deionized water, instructions and carrying case.

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

Measuring Range: -50 to +350°C

Old Part Number: 101150
New Part Number: J101150LA

610-1112-000 Single-Gas Calibration (Nitrogen, 100%), 34 Liters by RAE Systems

Green cylinder technology not only saves the environment, it also saves time and money.

• Gas cylinder size options 34, 58 and 116 liter
• Green Refillable cylinder
• "Strip and Ship" program for easy return of empty cylinders
• Small cylinder footprint
• Cylinder technology offers exceptional gas stability
• All gas cylinders use the same valve

Old Part Number: IM104950N
New Part Number: M10492VN

91210-30 Traceable® Water-Resistant Thermocouple Thermometer with Calibration by Digi-Sense

The rugged ABS construction makes this meter shock-resistant, and is gasketed in order to seal out dirt, dust, fumes and water. Perfect for use in lab or plant environments. A microprocessor updates the display twice every second. The meter features recall, min/max, Hold, °F/°C selectable units, count-up timer, and high/low alarm. Accepts type K thermocouple probes with miniconnector. Back-lighting button permits reading in dark areas.

Traceable® products are calibrated to NIST-traceable standards and ready to use as soon as you receive it. Each product goes through an intense vetting process before it can carry the Traceable name, and it includes NIST-traceable certification. This means that a 17025-accredited calibration test lab has confirmed that the product meets or exceeds all stated specifications, saving you both time and money by not having to calibrate separately.

NIST-traceable calibration also helps you meet quality standards and regulatory compliance for ISO, FDA, cGMP, VFC, CAP, CLIA and Joint Commission requirements.

• Get accurate, reliable measurements with included NIST-traceable calibration
• Fast-response microprocessor updates the display twice a second
• Water-resistant case

Includes

Beaded-wire type K probe, NIST-traceable calibration certificate with data, PVC protective casing with flip-out stand, and three AAA batteries.

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

72326 Nature DX 12x50mm Roof Binoculars by Celestron

Celestron's award-winning Nature DX 12x50mm binoculars are the perfect companion for your next outdoor adventure. The views through Nature DX rival those of more expensive binoculars at a price to fit your budget.

This versatile, all-around binocular is an excellent choice for the trail, the stadium, the arena, or just about anywhere you want a close-up view of the action without sacrificing brightness or detail. It's an especially great companion for nature observation and bird watching, with phase-coated BaK-4 prisms and a close focus of just 8.2 feet.

Coatings and Prisms

Nature DX features fully multi-coated optics. A binocular is "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 consist of high-quality BaK-4 glass with phase coatings applied so that more light reflects 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 rubber armored polycarbonate housing protects your Nature DX binoculars from damage without weighing you down. Viewing through Nature DX is comfortable for eyeglass wearers and non-eyeglass wearers alike, 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 the lenses. Nature DX can stand up to even the harshest outdoor conditions.

Perfect for a Variety of Uses

The Nature DX 12x50mm offers 12x magnification, perfect for up-close views of distant subjects. Despite its higher magnification, this binocular maintains a close focus of just 8.2 feet, making it a great choice for viewing nearby birds, butterflies, plants, and more. The 50mm objective lenses are large enough to transmit 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 DX with 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.

• Phase coated BaK-4 prisms produce vivid, true-to-life colors
• Fully multi-coated optics deliver maximum light transmission through the optical path
• Eyeglass friendly - generous eye relief and sturdy, twist-up eyecups with multiple stops
• 8.2' close focus
• Accepts an optional tripod adapter for extended viewing sessions

Old Part Number: 101610
New Part Number: J101610PA

2842800 Chlorine Dioxide Test Kit: Hach Color Disc by AquaPhoenix

Monitor ClO2 levels on-site with the Chlorine Dioxide Test Kit. The Chlorine Dioxide Test Kit uses the reliable DPD method to monitor ClO2 concentration, while eliminating chlorine interference through the addition of glycine. With 100 tests per kit and available range of 0-2 mg/L and resolution of 0.1 mg/L, operators can accurately monitor around the 0.8 mg/L regulated limit.

Simple, cost-effective method for maintaining optimum chlorine dioxide levels in your plant
USEPA-accepted for waste water and potable water
Approved by some states for potable water under specific conditions (check with your regulatory agency)

Includes two reagents, tube, color comparator box, color discs, instruction sheets, and carrying case.