$100 - $150

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

S01-2000-010 ProRAE Guardian Real-time Monitoring Tier 2 Monthly Subscription per Instrument by RAE Systems

The Subscription Model provides the end customers the ability to get license keys that are valid for a fixed duration of time or to allow rental houses to get license keys to lease out the software to their end customers for a fixed duration of time. Subscription based licenses cannot be combined with perpetual licenses.

TK6812-Z Ware Wash Combination Kit by AquaPhoenix

Contains: Chlorinated Alkaline Test Kit, Total Hardness Test Kit, Chlorine Test Strips 0-200 ppm, Quat Test Strips 0-50-100-200-400 ppm, Vial 10-50 mL (2), Syringe 12 mL

93431 Luminos 10mm Eyepiece by Celestron

The Luminos series eyepieces offer a wide 82° field of view in both high power and low power models, allowing you to make the most of your telescope, whether you own a short, fast refractor or a Celestron EdgeHD telescope. The optical set consists of six or seven elements (depending on the model) and is fully multi-coated for crisp, sharp views. All six Luminos eyepieces are parfocal, which means you can switch out eyepieces during observing sessions with little or no additional focusing required.

The Luminos eyepiece body is made of polished and anodized aluminum. A rubber grip runs around the equator of the eyepiece, giving you a secure grip and an easy method for raising and lowering the retractable eyecup. Simply twist the rubber grip to adjust the height of the eyecup. The insert barrel is threaded to accept filters.

• Enjoy wide 82° views with Celestron Luminos Eyepieces.
• Retractable eyecup pops up when you need it, drops down when you don't.
• Sturdy anodized aluminum barrels are threaded for filters.
• A rubber grip keeps the eyepiece securely in your hands, even when it's cold or you have gloves on.
• Other eyepieces in the Celestron Luminos Series include: 7mm - 1.25", 15mm - 1.25", 19mm - 2", 23mm - 2", 31mm - 2"