$15 - $20

Non-Conductive Mount Kit

TDSK300000/P Conductivity Standard Solution, 300,000uS (Pt) 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)

SH6220-P Sodium Hydroxide, 0.25N, 500mL by AquaPhoenix

• Traceable to NIST
• Sodium Hydroxide Solution/UN1824

Specifications

• Concentration: 0.25N
• Packaging Type: Poly
• Size: 500 mL

AI1131 12.88 mS/cm Conductivity Calibration Solution 8 oz. by Apera

The Apera Instruments 12.88 mS/cm Standard Conductivity Calibration Solution is made of high-purity chemicals, standardized against NIST certified references at 25°C (77°F). It's ideal for the calibration of all types of conductivity meters. Since conductivity value is affected by temperature, the temperature & conductivity reference table is provided on the bottle labels for your reference.

All the solutions are double-sealed, not subject to the DOT shipping restrictions, and have a 1-year shelf life. The expiration date is printed on the bottle.

MSDS is downloadable at support.aperainst.com; The Certificate of Analysis can be acquired by requests.

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.

• Standardized against NIST certified references at 25°C (77°F), ideal for the calibration of all types of conductivity meters
• Double-sealed, 1-Year shelf life
• The expiration date and Temperature/pH reference table is provided for reference
• Non-hazardous product (MSDS is downloadable)

SH6160-P Sodium Hydroxide, 0.01N, 500mL by AquaPhoenix

• Traceable to NIST

Specifications

• Concentration: 0.01N
• Packaging Type: Poly
• Size: 500 mL

CAREKITCON Probe Care Kit - Conductivity by Bluelab

Product Features / Benefits

• Probe care instructions
• Two 20 ml single-use sachets of Bluelab 2.77 EC conductivity standard solution
• One plastic cup
• Bluelab Conductivity Probe Cleaner
• Chamois for cleaning your conductivity probe

93704 Observer's Map of the Moon by Celestron

Celestron has joined forces with master lunar cartographer Ralph Aeschliman on a two-sided Moon Map. This quality map provides you a great way to familiarize yourself with the Moon, our neighboring world. Whether you are looking for Lacus, Maria, Montes, or Valles, the Moon map will help you navigate the lunar landscape with confidence. You can observe features with your telescope and locate them on the map or vice versa. This map also features a directory of all the key lunar regions with coordinates to find them.

On the reverse side of the map, there are close-up photos and information about the most exciting lunar regions to explore. You'll also find images of the North and South polar regions for reference?. Refer to the lunar observing tips for practical information about using your telescope or binoculars to explore the Moon.

The Observer's Map of the Moon is waterproof, tear-resistant, and can be folded into an 8" x 4" size, making it easy to take along on your next camping trip, star party, or evening in your backyard. When not in use, the Moon map will be a stylish decorative poster on your wall. It makes a great display for your classroom or astronomy club.

Whether you are just beginning or an advanced observer, you will find yourself viewing the Moon again and again; have the Observer's Map of the Moon be your guide.

• Double-sided map of the lunar surface highlights key features like craters and maria that you can explore for yourself with your telescope
• Features a directory of the best craters and lunar features with coordinates to find them
• Detailed lunar observing tips and information about key lunar regions on the reverse side of the map
• Lunar topography by renowned lunar cartographer, Ralph Aeschliman
• Map is 24" x 24" for easy reading or display, but folds to just 8" x 4" for easy transport to your observing site
• Map is waterproof and tear resistant

18526-25 Type T Economic Bolt On Thermocouple Probe #8 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

AI1130-L 1413 μS/cm Conductivity Calibration Solution 16 oz. by Apera

The Apera Instruments 1413 μS/cm Standard Conductivity Calibration Solution is made of high-purity chemicals, standardized against NIST certified references at 25°C (77°F). It's ideal for the calibration of all types of conductivity meters. Since conductivity value is affected by temperature, the temperature & conductivity reference table is provided on the bottle labels for your reference.

All the solutions are double-sealed, not subject to the DOT shipping restrictions, and have a 1-year shelf life. The expiration date is printed on the bottle.

MSDS is downloadable at support.aperainst.com; The Certificate of Analysis can be acquired by requests.

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.

• Standardized against NIST certified references at 25°C (77°F), ideal for the calibration of all types of conductivity meters
• Double-sealed, 1-Year shelf life
• The expiration date and Temperature/pH reference table is provided for reference
• Non-hazardous product (MSDS is downloadable)