$100 - $150

94189 17 lb. CGEM Counterweight by Celestron

This 17lb Counterweight Accessory is designed for CGEM Series Computerized Telescope or CGEM EdgeHD Series Computerized Telescopes.

90446-31 Temperature Probe, Type J, 6" L, 1/8" Dia, PTFE, Mini-Connector by Digi-Sense

Magnesium Oxide insulated thermocouples, commonly referred to as MgO thermocouples, are used in many process and laboratory applications. Many desirable characteristics make them an excellent choice for general and special purpose applications. They are available in all thermocouple element types, single or dual elements, a wide variety of sheath diameters / materials, rugged in nature, bendable, and have fairly high temperature ratings.

• 316 stainless steel sheath

18526-60 Economic Cryogenic Probe, 100 Ohm, 3" L, Stripped, .188 Dia, 5ft FEP by Digi-Sense

Time constant is the time required to reach 63.2% of the new reading. To determine how long it will take to reach 99% of the new reading multiply the time constant by five.

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).

• Temperature ranges from -321°F - +300°F (-196°C to - +150°C)
• Time Constant: 3 seconds or greater
• Maximum error for probe assembly is ±1.1°C + 0.35% of reading below 300°F,. Alpha coefficient is 0.003850 U/U/°C (DIN IEC 751). Resistance at ice point (0°C) is 100 omega.
• Custom designs or changes to this product are available upon request

18526-65 Economic Cryogenic Probe, 100 Ohm, 12" L, 3 Pin, .188 Dia, 5ft FEP by Digi-Sense

Time constant is the time required to reach 63.2% of the new reading. To determine how long it will take to reach 99% of the new reading multiply the time constant by five.

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).

• Temperature ranges from -321°F - +300°F (-196°C to - +150°C)
• Time Constant: 3 seconds or greater
• Maximum error for probe assembly is ±1.1°C + 0.35% of reading below 300°F,. Alpha coefficient is 0.003850 U/U/°C (DIN IEC 751). Resistance at ice point (0°C) is 100 omega.
• Custom designs or changes to this product are available upon request

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

90447-06 1/4" OD 6" Length Stripped Leads by Digi-Sense

Resistance Temperature Detectors, or RTDs, are used in many process and laboratory applications where accuracy and repeatability are of prime importance. RTD elements are available in many different materials and with different temperature coefficients. The most commonly used element is a wire-wound platinum element, conforming to the DIN standard and with a .00385 temperature coefficient.

Key Features

• All probes are low range
• 316 stainless steel sheath material
• Extension leadwire transition with relief spring (350,°F)
• 3-wire RTD, 100 Ω
• Accuracy ±0.1%
• -328 to 400°F (-200 to 204°C)
• .00385°C temperature coefficient
• Constructed using PTFE Insulated silver plated copper internal leads

*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

08077-22 Certified Refrigerator Bottle Thermometer, -2/10C, 180mm Length by Digi-Sense

Accurately monitor temperatures in freezers, refrigerators, incubators, ovens, and other environments where stability is required. All thermometers are supplied in a glass bead filled unbreakable plastic bottle and can be removed from the bottle for recalibration. Use the magnetic attachment with pressure-sensitive backing to attach the bottle to a metal wall or door.

Thermometers feature permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered. Include an statement of accuracy and a triangular-style antiroll fitting.

• An individually serial number is printed on the thermometer stem
• Nonmercury blue spirit liquid
• NIST- traceable statement of accuracy included

PS22 22" PVC Shutter by Schaefer

Schaefer PVC shutters are maintenance free, resistant to rust and corrosion and have an efficient, aerodynamic design. Louvers are curved for a tight seal when closed and corners are fused together for exceptional strength and durability. Optional integrated shutter motors available.

The 115 volt, 1/2 amp gear motor and arm assembly opens shutter when energized and closes shutter when de-energized. Nylon bearings will not corrode and never needs lubrication.

901 Intellegent Magnetic Stirrer by Apera

The Apera Instruments 901 Intelligent Magnetic Stirrer features stirring speed save and recall function, so you will never lose the specific speed that meet your measuring needs, great for general laboratory water solution analysis. Powered by DC9V power adaptor or 4 AA batteries, IP54 waterproof and dustproof housing with transparent coping design, so you can use it in labs or bring it to the field. Speed range: 0-2300 rpm (no load). Working diameter: ø100 mm. Maximum stirring volume: 1000 ml. Dimension: ø100*46*48 mm. Comes with complete accessories: Magnetic stirring bars, batteries, power adaptor, holder, and electrode clamp. The stirrer meets ISO 9001:2008 standards and comes with a 2-year warranty. The company designs and manufactures laboratory analytical instruments like pH meters, conductivity meters, electrodes, and buffer solutions for over 25 years.

• Stirring speed can be saved and recalled, so you won't lose the exact stirring speed you need any more
• IP54 waterproof and dustproof housing with transparent coping design
• Powered by AC/DC adapter or 4 AA batteries, suitable for indoor/outdoor use
• Comes with complete accessories, including magnetic stirring bars, holder, electrode clamp, batteries, and power adaptor
• Meets ISO 9001:2008 standards and comes with a 2-year warranty

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