$200 - $300

K-7366 COD Vials Kit, 0-1500 ppm (HR) Mercury-free, 150 vials by AquaPhoenix

All COD Kits require the use of a Digestor Block and the V-2000 Photometer, an A-7325 COD Photometer, or a spectrophotometer capable of accepting a 16 mm round cell. Photometers sold separately. A digestor block is no longer available from CHEMetrics.

A fresh reagent ampoule blank must be prepared for each series of tests; therefore the number of samples that can be tested with each kit will vary.

90587-30 Soil Thermometer, 48" L x 0.25" Dia; 0-200F/ -15-90C by Digi-Sense

• Ideal for measuring core temperatures in compost piles, hay, soil, or grains
• 3" diameter dial for easy reading
• Calibrate with external reset screw
• Thermometers meet ASME B40.3 standards for leak- and fog-proof operation
• Tips are 0.25" dia for fast response

Part Number: G1053100PA

52350 Ultima 80 - 45 Degree Spotting Scope with Smartphone Adapter by Celestron

The tried-and-true Ultima 80mm angled spotting scope is now available bundled with the Celestron Smartphone Adapter. It's an all-in-one digiscoping solution, perfect for outdoor lovers of all stripes.

• 20-60x magnification range
• 45° viewing angle to observe comfortably for extended periods
• Includes a smartphone adapter so you can capture images and video through the scope instantly
• Tripod adaptable for long-duration or long-distance viewing
• Durable body to stands up to minor bumps and jolts while protecting the optics from wet/humid weather and other environmental challenges

Imaging is Easy with the Celestron Smartphone Adapter

Capture images and video right on your smartphone with this handy smartphone adapter. With its light, rigid frame, this accessory allows you to connect any smartphone to the Ultima eyepiece, or any eyepiece with an outside diameter of 45mm or smaller. The additional magnification provided by the eyepiece allows your phone to capture stunning images of wildlife, distant objects, and even the Moon at night! This smartphone adapter installs in seconds by simply clamping over the top of the eyepiece. Tightening knobs securely lock your phone in place. Note that some large and/or excessively bulky phone cases (including folio style cases) may need to be removed for the phone to fit in the adapter.

Our Most Loved Spotting Scope

The Ultima 80mm spotting scope is one of the most popular models in our Ultima series. The scope features a 45° viewing angle, excellent fully multi-coated optics, and a versatile 20-60x zoom eyepiece. Its rugged and portable design makes it easy to transport anywhere.

Perfect for a Variety of Uses

The Ultima 80 angled spotting scope comes with a 20x-60x zoom eyepiece. Use the lower magnifications to scan the landscape and quickly punch in for detailed, up-close views of small subjects when needed. The large, ergonomic focus knob ensures your object is always in clear view. Both the zoom and focus knobs come with a rubber grip for easy adjustments while wearing gloves. The Ultima series was designed to perform well in a range of viewing situations, making it a great all-around optical instrument.

Ways to Observe

The Ultima spotting scope is tripod adaptable, providing a variety of options for viewing. This spotting scope can easily be secured to a stable platform for comfortable long-duration or long-distance viewing.

The Ultima spotting scope comes with a view-through carrying case. You can leave the case on when for viewing, transport, and storage. It can even remain on while the scope is mounted on a tripod.

3921 DO/Temperature Controller by Jenco

DO & temperature controller with 2 sets of On/Off relays, stored calibration data, backlit LCD display for DO and temperature, universal power supply 100 to 240 VAC and packaged in an easy to install plastic panel mount water resistant 1/8 DIN IP65 case. Uses Hamilton Company Oxysens and Easyferm DO electrodes.

• Easy to install 1/8 DIN plastic casing
• Clear LCD displays dissolved oxygen or temperature with backlight
• Calibration data is stored in memory and is ready for use on power up
• Universal power supply input from 100 ~ 240 VAC
• Automatic or manual temperature compensation
• Two sets of programmable on/off relays for DO
• CE and RoHS complain

SPACEMAKER25 8" Diameter x 25' HRT Duct with Retractable Midsection by Pelsue

Pelsue's SpaceMaker hose allows unrestricted, continuous ventilation during entry and egress of a confined space. Unlike other saddle vents, there are no accessory parts required to make these hoses work, and they may be stored in a regular hose canister. These Hoses are 8 inches in diameter and avilable in 15 ft (SpaceMaker15) or 25 ft (SpaceMaker25).. Please note these hoses are not for use with air heated above 250 degrees Fahrenheit.

S354CDHF pH Sensor, Flat, Polymer, 12mm, HF, S8 by Sensorex

The specification sheet serves as an addendum to the pH LabSpecs sheet and covers all lab pH electrodes suitable for use in hydrofluoric acid.

Specifications differences for use in hydrofluoric acid (HF) are shown in SPECIFICATIONS section below. Please note 2 major differences as compared to standard electrodes. First, pH range is 0-12 not 0-14. Second, the temperature range is 0-50 deg C.

This series of electrodes are compatible with any lab or portable pH meter. Calibration of these electrodes is as normal with any standard pH electrode using standard pH buffer solutions.

• Resist attack and etching from HF (up to 2% v/v)
• Resist coating and fouling
• Compatible with any pH meter

MP-PREMIUM Kit by Zarbeco

The MP-PRE Kit is an cost-effective way to add a hard case with custom premium insert with 2 trays, portable light table, and LED 3 Watt Flashlight with flashlight holder to any MiScope Megapixel 2. You can also add the optional VTB Premier PC software upgrade.

The hard case with custom premium insert is a rugged, watertight, shockproof, and dustproof case with two trays designed to hold your MiScope Megapixel 2, USB cable, light table, MPstand and LED flashlight with flashlight holder. For field trips or transport between laboratory to classroom to courtroom it will keep your MiScope Megapixel 2 and accessories clean and safe.

The slim portable light table works with an included lithium rechargeable battery or the included USB and AC adapter plug for use in the field or in the lab. It is suitable to view any opaque objects or when you want to use bottom lighting.

The LED flashlight is a durable portable light for portable microscopes. It is battery powered and comes in a compact metal case with large push button button for on/off. The flexible flashlight holder will hold your flashlight to illuminate your MiScope for side lighting.

MiScope Megapixel 2 must be purchased separately (not included)

Features

• Slim Light Table: portable, rechargeable battery and USB/AC power
• Hard Case: Watertight, shockproof, dustproof, pressure release value
• Flashlight: durable, portable, lightweight
• Flashlight holder: holds flashlight for side lighting of MiScope
• MiScope Megapixel 2 not included (must be purchased separately)

Applications

• Forensics, using oblique and back lighting for enhanced viewing of shape and texture
• Field Sciences, using oblique lighting and light table in the field
• Advanced Inspection using special lighting techniques to enhance detail

*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

MISC-P7-TH MiScope Premium 7" Case with Table Tray by Zarbeco

The premium hard cases with 2 or 3 trays with custom inserts is a rugged, watertight, shockproof and dustproof case designed to safely hold your MiScope, USB cable, slim light table and other accessories (including filter wheel or live insect holder).

Premium 10" case (MISC-PC10) has three custom trays and can hold: MiScope, USB cable, light table, filter wheel, 8 or 10" tablet, MPStand, Ushims, Mini-Stylus, flashlights and holders, Calibration Grid and holder, and other MiScope accessories.

90585-30 Soil Thermometer, 24" L x 0.25" Dia; 0-200F/ -15-90C by Digi-Sense

• Ideal for measuring core temperatures in compost piles, hay, soil, or grains
• 3" diameter dial for easy reading
• Calibrate with external reset screw
• Thermometers meet ASME B40.3 standards for leak- and fog-proof operation
• Tips are 0.25" dia for fast response

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

Part Number: J10183000PA

08009-29 ASTM Like Liquid-In-Glass Thermometer; 52C / Butadiene Boiling Point Range, Total Immersion, -10 to 5C, Organic Liquid Fill by Digi-Sense

These thermometers are precision manufactured to conform to ASTM E-1 specifications except for not being mercury filled. Designed for use in quality control laboratories or when mercury filled thermometers can not be used but where ASTM standards are still needed. ASTM established thermometer standards suited for special applications, and assigned an ASTM number according to each specification.

Thermometers feature permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered.

• Designed for specific ASTM (American Society for Testing and Materials) test methods
• Nonmercury blue spirit liquid

Old Part Number: IM10132000N
New Part Number: M10132000PN

PENSTP pH and Conductivity Starter Pack by Bluelab

Perfect for quick and easy pH and temperature readings direct from your solution. The Bluelab® pH Pen is the preferred option for hand held pH meters. It provides a compact, quick and handy way to manage the success of your crops to ensure maximum uptake of nutrients.

A key parameter that affects nutrient uptake is whether your solution is acid or alkaline. We measure this in pH. Teamed with our Bluelab® Conductivity Pen you have a robust, convenient and accurate measurement system.

Features

• Measures pH and temperature
• Selectable units for temperature
• Fully waterproof
• Backlit LCD display
• Double junction probe (not replaceable)
• Simple two point calibration process with 30 day calibration indicator
• Hold reading function
• Low battery indicator
• Auto off function
• Automatic temperature compensation
• 1 AAA replaceable battery included