$100 - $150

93436 Luminos 2" 2.5x Barlow Lens by Celestron

The Celestron 2" Luminos Barlow Lens increases the magnification of your 2" and 1.25" eyepieces by 2.5x. The premium 4-element apochromatic optics are fully multi-coated for optimum light transmission and yield high contrast, true color images.

The beautiful hard-anodized aluminum housing matches the eyepieces in the Celestron Luminos line. A centralized rubber grip helps to keep your hands securely on the barrel, even when your fingers are cold or you are wearing gloves. A brass compression ring just inside the top of the Luminos 2.5x Barlow grabs your 2" eyepieces gently but firmly when you turn the oversized thumbscrew. Once the thumbscrew has been secured in place, the brass ring keeps your eyepiece in the Barlow instead of relying on the tip of the thumbscrew itself, offering a better grip and protecting the barrel from scratches. A matching 2" to 1.25" adapter is included so that you can increase the magnification of all of your eyepieces, both 1.25" and 2", in this versatile Barlow lens.

The insert barrel of the Celestron Luminos 2.5x Barlow is threaded to accept 2" filters. This is a nice feature, because you can change eyepieces without removing and reattaching the filter each time.

• The Celestron 2.5x Luminos Barlow increases the magnification of any 2" or 1.25" eyepiece by two and a half times.
• High-quality 4-element optics produce a flat field for sharp images that are free of extraneous color.
• Hard-anodized aluminum barrel is threaded to accept 2" filters.
• A brass compression ring holds eyepieces firmly in place, and large thumbscrews are easy to turn, even with gloves on.
• A 2" to 1.25" adapter is included. Allows the use of both 2" and 1.25" eyepieces.

*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

90309-60 Irreversible Descending Low-Temperature Indicators, 32°F (0°C), 10 Pk by Digi-Sense

These labels offer a highly reliable and irreversible indication of exposure to low temperatures. Labels clearly indicate when the product to which it is attached to has been subjected to harsh temperatures, which could have detrimental effects on refrigerated pharmaceuticals, foods, chemicals, paints, and adhesives. Available in both ascending and descending style Accuracy is ±1°C of the rated temperature. Shelf life: one year after date of purchase.

• Used as a quick inspection tool that the product is in usable condition during the shipping and receiving process
• Save time and money due to costly recalls
• Self-adhesive design

08009-06 ASTM Like Liquid-In-Glass Thermometer, 6F / Low Cloud and Pour, 76mm Immersion, -112 to 70F, Organic Liquid Fill by Digi-Sense

These thermometers are precision manufactured to conform to ASTM E-1 specifications except for not being mercury filled. Designed for use in quality control laboratories or when mercury filled thermometers can not be used but where ASTM standards are still needed. ASTM established thermometer standards suited for special applications, and assigned an ASTM number according to each specification.

Thermometers feature permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered.

• Designed for specific ASTM (American Society for Testing and Materials) test methods
• Nonmercury blue spirit liquid

08009-30 ASTM Like Liquid-In-Glass Thermometer; 54C / Congealing Point, Total Immersion, 20 to 100.6C, Organic Liquid Fill by Digi-Sense

These thermometers are precision manufactured to conform to ASTM E-1 specifications except for not being mercury filled. Designed for use in quality control laboratories or when mercury filled thermometers can not be used but where ASTM standards are still needed. ASTM established thermometer standards suited for special applications, and assigned an ASTM number according to each specification.

Thermometers feature permanently fused markings, blue spirit liquid, white background glass; are also individually serial numbered.

• Designed for specific ASTM (American Society for Testing and Materials) test methods
• Nonmercury blue spirit liquid