$150 - $200

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

BK-4400-G-PK Beaker, Glass 400mL - 12 pack by AquaPhoenix

With spouts and strengthened rim with flare trimmed back that offer optimum balance between thermal shock resistance and mechanical strength.

0563 2915 915i - Smart Probe with Surface probe (TC type K) by Testo

The testo 915i wireless thermometer with fast-response air probe and sprung thermocouple strip will enable you to tackle your temperature measurements with greater speed, flexibility and ease, even when dealing with uneven surfaces. The testo 915i automatically connects to your smartphone/tablet or compatible testo measuring instrument via Bluetooth. The testo Smart App facilitates intuitive operation, clear display of measurement data as well as documentation and sending of reports on site. The handle is compatible with all standard type K thermocouple probes – making it versatile.

• Fast-response surface probe (TC type K, class 1) with sprung thermocouple strip, measuring range -50 to +350 °C
• High measuring accuracy up to ±1.0 °C thanks to system calibration ex-works
• For fast, wireless temperature measurement on flat and non-planar surfaces: The sprung thermocouple strip adapts to the surface – so you get reliable measurement results even when measuring on pipes, for example
• Innovative locking mechanism on the handle for easy, secure attachment of plug-in Testo measuring probes
• Versatile in all temperature-relevant applications: Compatible with all Testo and standard type K thermocouple probes
• testo Smart App: Display of readings, clear graphical presentation of temperature curves, create documentation on site and send as PDF or CSV files
• Automatic Bluetooth connection to smartphones, tablets or compatible Testo measuring instruments
• Bluetooth with a range of up to 100 m
• Handy, robust housing
• Thanks to its proven quality and great durability, you can rely on your Testo Smart Probe in all conditions

Includes:

Wireless Smart Probe testo?915i with surface probe (TC Type K), including batteries and calibration protocol.

PTSA/FL Calibration Std 100ppb PTSA/ 10ppb Fluorescein-500mL Bottle by AquaPhoenix

Fluorescein is used in boiler feedwater applications as a tracer for real-time inhibitor concentration monitoring, often known as the "Fluorescence tracing" technique.

Fluorescein standards are manufactured under strict lab environment and quality control process to ensure accuracy for calibration. It is ideal for calibration of the Pyxis portable and/or inline fluorescein fluorometers.

The innovative PTSA-100FL and PTSA-100/50FL is an advancement that combines 100 ppb PTSA with 10 ppb or 50 ppb fluorescein in the same standard liquid, ideal to for the calibration of SP-380.

Shelf life is 6 months.

Part Number: J126550LM8

WD-20250-93 Thermistor Thermometer, NIST-Traceable Calibration by Digi-Sense

The Digi-Sense Professional Single-Input Thermometers offer fast response and laboratory accuracy. Features include automatic backlight, Max/Min readings, and automatic power-off. These thermometers provide precise measurements when accuracy is a must, delivering dependable results every time! Each model is packed with distinctive features for use in a wide array of applications. Robust and reliable constructed to protects against knocks and jars. These thermometers produce a high degree of accuracy, with a rapid response time, and exceptional battery life of up to 3000 hours.

Digi-Sense instrument are fully tested and calibrated to NIST-traceable standards, saving you hundreds of dollars and extra waiting time to calibrate separately.

Key Features

• Reliable measurements, guaranteed!
• NIST-traceable certificate included
• Heavy duty construction to protect against knocks and jars.
• Super lager LCD for easy viewing of data
• Accepts a wide variety of probes
• Min, Max, and Avg readings, for quick analysis of the object
• Electronic Offset function allows compensation of probe errors

Includes

Protective rubber armor boot with built-in stand, one 9 V battery, and NIST-traceable calibration report with data supplied by InnoCal. Data logging models 20250-92, -94, and -96 also include a USB cable and software.

Part Number: J197129LM1

Part Number: F10795PM2

6628-01 Molybdenum Test Kit: 1 drop = 1,2,3,4,5,6,8,10 ppm Sodium Molybdate by AquaPhoenix

This Sodium Molybdate test kit tests for molybdate using xanthate and the Octa-Slide 2 Comparator. Range/sensitivity is 1, 2, 3, 4, 5, 6, 8, 10 ppm sodium molybdate, 100 tests.

72323 Nature DX 10x42mm Roof Binoculars by Celestron

Celestron's award-winning Nature DX 10x42mm 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 6.5 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 10x42mm offers 10x magnification, perfect for up-close views of distant subjects. Despite its higher magnification, this binocular maintains a close focus of just 6.5 feet, making it a great choice for viewing nearby birds, butterflies, plants, and more. The 10x42mm is a favorite among beginning and intermediate birders since birds are easier to locate and follow in its wide field of view. Take your passion for birding to the next level with Nature DX!

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
• 6.5' close focus
• Accepts an optional tripod adapter for extended viewing sessions

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

0554 8831 Additional Rechargeable Battery (883) by Testo

With the spare battery, you can extend the operating time of your instruments or always have a second battery ready to hand. The Li-ion rechargeable battery can be used in compatible thermal imagers from Testo. You can easily replace the rechargeable battery directly on site without requiring any tools. The spare battery can be charged using a desktop charging station (please order separately).

• Spare battery for extending the operating time
• Can be used as a second battery
• Rechargeable battery can be changed quickly and easily directly on site – without the need for tools

Includes:

Li-ion rechargeable battery for extending the operating time.

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

WD-35805-65 Accumet pH Electrode, 6x106 mm, Epoxy Body, Single Junction, Sealed by Oakton

Oakton high-performance electrodes are available in a full range of materials, junctions, and sizes to suit your application requirements. New formulation provides additional stability and superior reproducibility.

Affordable, high-accuracy pH electrodes for every application

• The ideal 5-point calibration pH electrode
• Delivers superior reproducibility in aqueous samples

Includes

3.3-ft (1-m) cable with a BNC connector.