$100 - $150

AI3109 LabSen 831 Glass-body pH Electrode for Strong Acid Samples and HF (Hydrofluoric) Acid by Apera

Built with proprietary sensor technology and premium materials from Switzerland, Apera LabSen 831 HF pH Electrode is designed for professional pH measurement of solutions containing HF (Hydrofluoric) acid, and other strong acidic solutions.

LabSen HF glass membrane - designed for accurate measurement in strong acid samples, and is resistant to hydrofluoric corrosion, good for 1000 times of measurement (measurement time<1 minute, and HF concentration should be less than 0.1mol/L or 0.2% wt%)

Built tough - The hemispherical glass membrane is 10 times stronger than traditional glass membranes, and highly resistant to general impact, saving the electrode from accidental damage.

Silver Ion Trap Reference System - On top of the Long-Life reference system, a silver ion trap is added to further prevent junction clogs.

The electrode uses a BNC connector, compatible with any pH meters that use BNC connectors. No temperature sensor is built-in. Users need to have a separate temperature probe (ex: Apera MP500) to enable ATC or manually input temperature to realize temperature compensation.

• Proprietary pH sensor technology and premium materials from Switzerland
• LabSen HF glass membrane designed for accurate measurement in strong acid samples, and is resistant to hydrofluoric corrosion
• Silver Ion Trap Reference System
• LabSen's sturdy glass membrane is 10 times stronger than traditional glass membranes
• The blue gel electrolyte eliminates the chance of any air bubbles inside the sensor

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

0554 2160 Handle Adapter for Connecting Testo 440 Air Flow Probes by Testo

• For connecting probe heads for air velocity probes or extendable telescope for air velocity probes to the universal handle with Bluetooth or cable

Includes:

Handle adapter for connection to air velocity probes with universal handle.

*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

18526-65 Economic Cryogenic Probe, 100 Ohm, 12" L, 3 Pin, .188 Dia, 5ft FEP by Digi-Sense

Time constant is the time required to reach 63.2% of the new reading. To determine how long it will take to reach 99% of the new reading multiply the time constant by five.

The temperature range is for the probe tip only. The handle material may be affected if the probe is rated higher than the handle depending on exposure time, application, and handle material. ABS handles are rated to 220°F (104°C); PVC handles are rated to 200°F (93°C); Stainless Steel handles are rated at 450°F (232°C); Mini Connectors are rated to 392°F (200°C).

• Temperature ranges from -321°F - +300°F (-196°C to - +150°C)
• Time Constant: 3 seconds or greater
• Maximum error for probe assembly is ±1.1°C + 0.35% of reading below 300°F,. Alpha coefficient is 0.003850 U/U/°C (DIN IEC 751). Resistance at ice point (0°C) is 100 omega.
• Custom designs or changes to this product are available upon request

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.

517631BT Molybdate Reagent Set, 1-50 mg/L by AquaPhoenix

With the new blister strip, the user just pushes the tablet through the protective foil, straight into the sample. Simple, time-saving and practical. This type of packaging, long established in pharmaceutical applications, combines all the advantages of protective foil, with convenience for the user. Each tablet is contained within an individually formed foil cup, lined with the latest aluminum composite material, and guaranteeing product performance

BU1245-G Buffer, pH 12.45, 4L by AquaPhoenix

• ± 0.01 at 25°C

pH Buffer should be used regularly, typically every day the meter is used to calibrate your pH meters. Pour buffer into a clean separate container and never return used or unused buffer back into the container. Always keep tightly capped and adhere to the expiration date which is printed on the label.

Traceable to NIST

Specifications

• Packaging Type: Poly
• Size: 4.00 L
• pH Value: 12.45

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

90446-20 Anglebasemetal Type Thermocouple Probe 8 Ga. Ceramic Insulated 18" Hot and 36" Cold Legs by Digi-Sense

Straight base and angle base metal thermocouple elements can serve as replacements compatible with many manufacturers' thermocouple assemblies. The angle base metal thermocouple elements are shipped in a straight configuration and are to be bent at the time of installation. The insulators at the bend are ball and socket style, while the hot and cold legs are covered with two-hole oval ceramic insulators.

Features

• Oval ceramic element insulators (0.500" X 0.281")
• Type K (Chromel / Alumel) 8 Gauge Thermocouples

Specifications

The HR-160 alloy of nickel-chromium-cobalt contains an appreciable addition of silicon which promotes very good high temperature corrosion resistance. Applications for this protection tube include industrial furnaces, incinerators, kilns, heat exchangers.

Inconel 600 is a nickel-chromium alloy designed for use from cryogenic to elevated temperatures in the range of 2000° F (1093° C). The high nickel content of the alloy enables it to retain considerable resistance under reducing conditions and makes it resistant to corrosion by a number of organic and inorganic compounds.

08009-59 ASTM Like Liquid-In-Glass Thermometer, 113F / Softening Point, (Bitumen) Wide Range, Total Immersion, 0 to 350F, 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