$25 - $50

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

SCT-108.001.21 SCT-THYG-PEN-1 Handheld LCD Digital Thermo Hygrometer by ScichemTech

Includes:

• Handheld Thermo Hygrometer
• Manual
• Ready to use

Features:

• Reliable SCT Tester for Humidity and Temperature measurements.
• Small and simple design.
• Option to select °F/°C.
• 0.1O Temp/0.1% RH resolution.
• Temperature / Humidity with maximum / minimum in °F/°C.
• With removable cap.
• Battery operated, with Low Battery Indicator.

F6-75B 75 Foot Black F Male to F Male by Test Products International

F-series coax cable assemblies with screw-on ends for broadband applications, including video and cable television.

Features

• UL Listed Cable: Ensures quality and consistency in the cable construction.
• RG-6: Cable type that is standard in the video and cable TV industry
• Molded Ends: Limits the amount of bending the cable is exposed to at the connector to prevent cable breakage.
• Screw-on F-Type Connectors: Ensure positive connection thus eliminating shadows in the picture.
• Multiple lengths up to 100 feet
• Available in black or white
• Individually bagged

AI1121-L pH 1.68 Calibration Buffer Solution 16oz by Apera

The Apera Instruments AI1121 pH 1.68 Calibration Buffer Solution is color-coded and standardized against NIST certified pH references within 0.01 pH at 25°C (77°F). It's ideal for the calibration of pH meters/testers that can automatically recognize pH 1.68 standard e.g. Apera PH60, PH700, PH800, PC400S. Since pH level is affected by temperature, a temperature/pH reference chart is provided on the bottle label for reference.

All the solutions are double-sealed, not subject to the DOT shipping restrictions, and have a 2-year shelf life. The expiration date is printed on the bottle.

MSDS documents are downloadable. Certificate of analysis can be achieved by request.

Note: Store at room temperature and away from direct sunlight. Keep the bottle tightly closed when not in use. Keep out of reach of children.

• High Accuracy (±0.01 pH): standardized against NIST certified pH references within 0.01 pH at 25°C (77°F).
• For the calibration of pH meters/testers that can recognize pH 1.68 solution
• Double-sealed, 2-Year shelf life
• Expiration date and Temperature/pH reference chart provided for reference
• Non-hazardous product (MSDS is downloadable)

90433-82 Thermowell, 304 Stainless Steel, 6" Length, 1/2" Connection by Digi-Sense

To match your probe to a thermowell, first measure the distance from the probe's tip to the top of the thread (typical thread length is 0.5" for 1/2" NPT fittings). Next, match this length to the probe depth of the thermowell ("A" dimension). Other thermowell sizes and materials are available - call our Application Specialists for more information.

• Limited-Space Thermowell when you need a shorter insertion depth.
• Standard Thermowell for general-purpose applications.
• Heavy-Duty Thermowell for higher fluid velocity ratings.

Length(MM) & Diameter: 150 X Ø8.00
Temperature: -100°C ~ +600°C OR -148°F ~ +1112°F

GHS1289LP Class 4.2 Dangerous Goods Laser Drum Labels (Paper), 100/Pkg by GHS Safety

GHS pre-printed drum labels come with your choice of pictorgram that meets the UN recommendations on the Transport of Dangerous Goods. These labels make an excellent choice for short production runs or re-labeling of product for transportation. These lebels are printed on a Laser Printable Paper or Vinyl stock with a permanent peel and stick adhesive. Use any desktop publishing package to quickly make your own transportation labels. Available in 8.5" x 14" size and packaged in bundles of 100 sheets.

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

94253 EclipSmart Solar Filter for 5" Schmidt-Cassegrain Telescopes by Celestron

Turn your Celestron 5" Schmidt-Cassegrain telescope into a solar scope! The EclipSmart Eclipse Solar Filter is a must-have accessory perfect for viewing the Sun and eclipses like the upcoming 2023 Annular Solar Eclipse and 2024 Total Solar Eclipse. Affordable, easy to use, and best of all, all Celestron EclipSmart products conform to the ISO 12312-2:2015(E) international safety standard. This solar filter is custom designed for Celestron 5" Schmidt-Cassegrain telescopes. Two hook and loop straps securely hold the filter in place for a safe, snug fit.

Compatible Telescopes:

• NexStar 5SE
• Popular Science by Celestron StarSense Explorer 5"
• C5 Spotting Scope
• StarSense Explorer 5" Schmidt-Cassegrain – International Exclusive
• Astro Fi 5" Schmidt-Cassegrain – International Exclusive

Solar Safe Technology

EclipSmart solar products feature Solar Safe filter technology—the ultimate protection from harmful solar radiation, including IR and UV light, plus 99.999% of visible light. Celestron Solar Safe filter technology is SAFE for direct observation of the Sun and has been independently tested to conform to and meet the transmission requirements of ISO 12312-2:2015(E), Filters for Direct Observation of the Sun, EN 1836:2005 + A1:2007 (E) for an E15 Filter for the Direct Observation of the Sun and AS/NZS 1338.1:2012, Filters for Eye Protectors.

Important safety note: inspect your filter before every use. Do not use and discard if damaged, torn, punctured, or separated from the frame in any way.

• SOLAR SAFE TELESCOPE FILTER: Filter conforms to the ISO 12312-2:2015(E) international safety standard for filters directly viewing the Sun. The ideal tool for viewing eclipses, sunspots, or the Sun any day!
• WORKS WITH YOUR EXISTING TELESCOPE: Compatible with Celestron 5" Schmidt-Cassegrain telescopes.
• SAFE, SNUG FIT: Two hook and loop straps keep your filter securely attached to your telescope's objective.
• SOLAR FILM MADE IN THE USA: Our Solar Safe film is produced in the USA by American Paper Optics, one of the suppliers recommended by NASA for safe solar viewing.
• GREAT VIEWS AND IMAGES: This filter features an orange tint, producing a natural look perfect for visual observing and capturing images through your telescope.

10-116-25 Phosphine Colorimetric Gas Detection Tube, 50 - 1,000 ppmv (10 Tubes / Box) by RAE Systems

RAE Systems colorimetric gas detection tubes enable quick, on-the-spot measurement of a wide range of toxic and combustible gases and vapors. RAE Systems tubes are easy to read, and provide a sharp, clear color change directly corresponding to the concentration of gas present. RAE Systems tubes are compatible with the RAE Systems piston hand pump, a reliable way to draw samples of an exact volume required for the most accurate measurements.

Key Features

• Wide assortment of tubes available to detect over 300 gases and vapors
• Easyto use, even in multiple layers of gloves
• Easy-to-read with sharp,clearcolorchange
• No calibration or other maintenance required

Applications

• Oil and gas
• Chemicals and petrochemicals
• Agriculture and pestcontro
• Food and beverage production
• Environmental protection
• Fire service
• HazMat response
• Nationalsecurity

*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

Part Number: DX-RINGS

TT21P Class 2.1 TDG Label (Paper) by GHS Safety

Class 2.1 Flammable Gases Shipping Labels are essential for packages that contain dangerous goods. GHS shipping labels are available in two materials. Paper for indoor applications and in vinyl for extended outdoor usage using a fade resistant ink. These labels meet the UN Recommendations on the Transport of Dangerous Goods (TDG).

Available in 500/roll formats.