$15 - $20

AI1123 pH 12.46 Calibration Buffer Solution 8oz by Apera

The Apera Instruments AI1123 pH 12.45 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 12.45 standard e.g. Apera PH60, 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 12.46 solution
• Double-sealed, 2-Year shelf life
• Expiration date and Temperature/pH reference chart provided for reference
• Non-hazardous product (MSDS is downloadable)

A-1410 Ammonia Solution Pack by AquaPhoenix

A-1410 is designed to be a refill of the accessory solutions found in the K-1420 Ammonia CHEMets® Test Kit (HBA). It contains: Two 10 mL bottles of A-1404 Stabilizer Solution, two 10 mL bottles of A-1405 Catalyzer Solution, and two 10 mL bottles of A-1406 Activator Solution. This is enough of each solution to perform approximately 80 tests.

A-3810 Accessory Solution Pack by AquaPhoenix

The A-3810 Accessory Solution Pack supplies enough Cyanide Activator and Neutralizer Solutions to perform approximately 60 tests.

Qty. per pack: 2 bottles of A-3801 Cyanide Activator Solution and 4 bottles of A-3805 Cyanide Neutralizer Solution.

58-180-1M RG58/U, BNC Male to BNC Male, 15 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

18526-20 Type K Economic Bolt On Thermocouple Probe #6 Screw 12" Fiberglass Ext. Grounded Junction by Digi-Sense

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).

• Available in #6 (M3.5) or #8 (M4) screw sizes and different lead lenghts
• Response Time: 2-4 seconds or greater
• Each probe comes with a color coded ANSI mini connector or stripped leads: type J-black, type K-yellow, type T-blue, and type E-purple.
• Custom designs or changes to this product are available upon request

98766-07 Traceable Large-Digit Stopwatch/Chronograph with Calibration; ±0.01% Accuracy by Digi-Sense

These stopwatch/timer/chronographs feature extra-tough construction and time-of-day alarm - ideal for industrial and plant use.

Traceable® Products have an individually-numbered Traceable® Certificate provided with each unit, that assures accuracy from our ISO/IEC 17025:2017(1750.01) calibration laboratory accredited by A2LA. It indicates traceability of measurements to the SI units through NIST or other recognized national measurement institutes (NMI) that are signatories to the CIPM Mutual Recognition Agreement. Each product goes through an intense vetting process before it can carry the Traceable name, thus saving you both time and money by not having to calibrate separately.

• Includes NIST-Traceable certificate from our A2LA accredited (1750.01) calibration laboratory
• Shock-resistant ABS plastic case for rugged durability
• Features AM/PM, date, day, alarm, and clock functions
• Use as a timer or use to display time of day in hours, minutes, and seconds

Includes

One 1.5 V button cell, lanyard, and NIST-traceable calibration certificate with data.

93588 Night Vision Flashlight by Celestron

A red flashlight is one of the most beneficial accessories you can own as an amateur astronomer, no matter how occasional your night sky observations may be. Also, if you plan to observe with other people, whether at a star party or in your own neighborhood, a red flashlight is an important part of good star party etiquette.

When you are outside doing astronomy, or any night-time activity that requires you to see as well as possible, any white light is a detriment. Every time you use white light, your eyes react. The pupils contract, making their aperture smaller, and a smaller aperture always means less light-gathering, whether we are talking about your eyes or your optical equipment.

A red flashlight allows you to see your star charts, find an eyepiece in your accessory case, or pick your way over telescope cables and other obstacles without affecting your night vision. The better your night vision, the more you can see in the eyepiece.

The Celestron Night Vision Flashlight uses two LED's to provide variable red illumination. Use the thumb wheel to adjust the light as you need it. The square shape of the flashlight keeps it from rolling off of your observing table to the ground. A lanyard is attached so you can wear it around your neck. The Night Vision Flashlight is powered by a 9V battery (included).

AI1228 pH 9.00 Calibration Buffer Solution 8oz by Apera

The Apera Instruments pH 9.00 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)

TDS15000/P Conductivity Solution, 15,000ppm/16,630uS, 1Pt by Sensorex

TDS/Conductivity instruments and sensors must be calibrated together. For a single-point calibration, select the one solution that approximates the expected conductivity or ppm level of total salts. Mixed Salt standards are the most frequently used in the field to sample naturally occurring water sources, boiler feed water, or cooling tower water. Typical river water, well water, or lake water sample will contain a mixture of several different salts. Sensorex Mixed Salt standards simulate a "Natural" mixture of common salt compounds found in these sources. Sodium sulfate, sodium bicarbonate, and sodium chloride salts are blended to provide a representative value. There are certain applications where Single Salt Solutions are preferred. NaCl Solution is routinely used to calibrate instruments measuring Sea Water or brackish water samples. Reagent grade salt and high resistivity DI water is compounded for accurate results. KCI Single Salt Solution may be used with conductivity meters that read directly in Siemens or Ohms. KCI (potassium chloride) is established as an international calibration standard for conductivity measurement. Choose the conductivity calibration solution that is right for your application. CA Residents: Prop 65 WARNING(S)

SH6255-P Sodium Hydroxide, 1.0N, 500mL by AquaPhoenix

• Traceable to NIST
• Sodium Hydroxide Solution/UN1824

Specifications

• Concentration: 1.0N
• Packaging Type: Poly
• Size: 500 mL