$10 - $15

AI1130-S 1413 μS/cm Conductivity Calibration Solution 4 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)

59-072-1M RG59/U, BNC Male to BNC Male, 72 inch 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

94037 Thermistor for Smart DewHeater Controllers by Celestron

Take the guesswork out of using third-party heating bands or straps and increase your power efficiency with the Celestron Thermistor for Smart DewHeater Controllers. This accessory allows the Smart DewHeater Controller (sold separately) to deliver just the right amount warmth for to your telescope's corrector to prevent dew without wasting battery. 6' cable length accommodates a wide variety of configurations.

How it works

Connect the heating band to your telescope and place the Thermistor's sealed probe tip under the heating band. Plug each cable into its corresponding port of the Smart DewHeater Controller.

NOTE: This thermistor is not required if you are using a Celestron Dew Heater Ring because the ring already contains a built-in thermistor.

Enhance your setup

We also recommend adding a dew shield to your setup. While not mandatory, a shield will cut down on the amount of power the your dew heater needs to keep the optics clear.

• Works in conjunction with Celestron's Smart DewHeater Controllers to allow "smart" control of third-party dew heaters
• Regulates heating bands or straps to conserve power by only delivering enough heat to the optics to prevent dew
• Sealed tip positioned under the heating band or strap provides accurate temperature readings

ND2225-B Nitrite Titrant (CAN Solution), 60mL by AquaPhoenix

• 1 drop = 25 ppm as NO2 / 5mL

Specifications

• Packaging Type: Poly
• Size: 60 mL

A-2500 Activator Solution Pack by AquaPhoenix

The accessory pack supplies enough solution to perform at least 200 tests. The Activator Solution, A-2500, is used in multiple CHEMetrics test kits. A-2500 Activator Solution Pack is a direct replacement for A-1600, A-5501, A-7400, and A-7900 Solution Packs.

08080-86 Stainless Steel Bimetal Pocket Thermometer, 1.75" Dial, Glass Lens, 8" Stem, 0 to 250C, 2C Div by Digi-Sense

• Factory tested to three points with a ±1% accuracy
• Minimum immersion: liquids 2" (50 mm), gases 4" (100 mm)
• Hermetically sealed dial stops internal fogging
• Recalibrate using external adjustment nut
• 304 Stainless Steel dial case and stem
• Shock resistant

Includes

All thermometers come with a statement of test and a beaker clip.