$20 - $25

90433-41 Thermowell, Brass, Standard, 1/2" NPT (M), 6" Stem 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.

AI7109 100-240V Switching Power Adapter by Apera

• Input: 100-240V, AC 50-60Hz, 0.25A
• Output: 9V, 0.5A, 2.7VA
• U.S plug
• Compatible with all Apera Instruments benchtop meters.

A-7310 COD Calibration Standard, 10,000 ppm by AquaPhoenix

This product requires refrigeration.

This COD calibration standard is designed to be run as a known standard alongside test vials to verify that your test procedure was performed correctly. Prevent mistakes or inaccurate results by conducting a known standard alongside your tests!

AI1129-L pH 11.00 Calibration Buffer Solution 16oz by Apera

The Apera Instruments pH 11.00 Calibration Buffer Solution is standardized against NIST certified pH references within 0.01 pH at 25°C (77°F). It's ideal for the calibration of pH meters that have customized calibration functions (e.g. Apera PH800, PH820, SX811).

pH value is affected by temperature variations. 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.

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).
• Ideal for the calibration of all kinds of pH meters/testers
• Double-sealed, 2-Year shelf life
• Expiration date and Temperature/pH reference chart provided for reference
• Non-hazardous product (MSDS is downloadable)

GHS1028 Simplified Pictogram Wall Chart (18" x 24") by GHS Safety

Simplified Pictogram Chart quickly illustrates the HazCom GHS hazard pictograms in a big and bold format. The large sized pictograms are easily read from a distance making it a handy reference for any work environment. Printed in full color on sturdy semi-rigid plastic, this chart is easily mounted on any wall.

May be used for both indoor and outdoor applications. Available in two sizes.

BU5004-Q Buffer, pH 4.00 ± 0.01 at 25°C, 1L by AquaPhoenix

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: 500 mL
• pH Value: 4.0 (color coded red)

BU5686-Q Buffer, pH 6.86, 1L by AquaPhoenix

• ± 0.02 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: 1.00 L
• pH Value: 6.86

94221 EclipSmart Solar Filter for 70mm Refractor by Celestron

Get ready for the 2017 total solar eclipse with EclipSmart Solar Safe Products.

Enhance your viewing experience with Celestron's EclipSmart Solar Filter for the PowerSeeker 70 AZ & EQ. With three Nylon safety screws to adhere the device to your telescope, you can be assured that the solar filter will not fall off and will provide Solar Safe, ISO compliant viewing.

• Instantly transform your normal PowerSeeker 70 (AZ & EQ) and Travel Scope 70 telescope into a white-light solar telescope
• Solar film produced in the USA by American Paper Optics, one of the suppliers recommended by NASA for safe solar viewing
• ISO Certified - proprietary Solar Safe material allows you to safely view the August 21, 2017 North American total solar eclipse
• Designed from the telescope's lens cap for a snug, safe fit via 3 safety screws. Safety cap protects outer surface of filter when not in use

Solar Safe Technology

EclipSmart solar products feature Solar Safe filter technology providing the ultimate protection from harmful solar radiation, including both IR and UV light, and filters 99.999% of intense visible light. Celestron Solar Safe filter technology is GUARANTEED SAFE for direct solar observation and has been independently tested by SAI Global Assurance Services.

Solar Safe products conform to and meet the transmission requirements of ISO 12312-2, 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.

94252 EclipSmart Solar Filter for StarSense Explorer LT 80AZ Telescopes by Celestron

Turn your Celestron StarSense Explorer LT 80AZ or ExploraScope 80AZ 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 the StarSense Explorer LT 80AZ and ExploraScope 80AZ telescopes. Three safety screws securely hold the filter in place for a safe, snug fit.

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 StarSense Explorer LT 80AZ and ExploraScope 80AZ telescopes.
• SAFE, SNUG FIT: Three safety screws keep your filter securely attached to your telescope's objective. A safety cap protects outer surface of filter when not in use.
• 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.

58-300-1M RG58/U, BNC Male to BNC Male, 25 Feet by Test Products International

50 Ohm, 75 Ohm, 93 Ohm. TPI BNC to BNC coax cable assemblies include: RG58/U (molded and assembled), RG59/U and RG62/U.

Features

• UL Listed Cable: Ensures quality and consistency in the cable construction.
• Boot is molded to cable connector for added strength: Limits the amount of bending the cable is exposed to at the connector to prevent cable breakage.
• Gold center pins: Ensures that there is a high quality connection maintaining the best return loss in high definition applications.
• Machined Brass Connectors: Unlike die-cast connectors, machined brass connectors have more precise tolerances, strength and positive mating meaning low signal loss for precise video and data applications.
• Boot is molded to cable connector for added strength
• 95% shielding
• 80°F temperature rating
• Multiple lengths up to 100 feet
• Individually bagged

SCT-108.001.38 SCT-VOLT-PEN-1 Pocket Voltage Detector by ScichemTech

Features:

• Reliable SCT - Unique Tester for Voltage Measurements.
• AC Voltage Deduction from 90V to 600V.
• Non-conduct deduction.
• Alarm / Red LED Voltage Indicator.
• Battery operated with low battery indicator.