$50 - $75

K-7004 Nitrite CHEMets® Test Kit (0-2.5 ppm) by AquaPhoenix

Shelf life: The refill and comparator contained in this kit have shelf lives of 12 months.

21039 PowerSeeker 50AZ Telescope by Celestron

The Celestron PowerSeeker series of telescopes is designed to give the first-time buyer the perfect combination of quality, value, features and power. Offering exceptional value, these telescopes feature portable yet powerful designs with ample optical performance to excite any newcomer to the world of amateur astronomy.

• Quick and easy no-tool setup
• Slow motion controls for smooth tracking
• Erect image optics - Ideal for terrestrial and astronomical use
• Fully coated glass optical components with high transmission coatings for enhanced image brightness and clarity
• 3x Barlow lens triples the magnifying power of each eyepiece
• Accessory tray for convenient storage of accessories
• BONUS Astronomy Software download with a 10,000 object database, printable sky maps and 75 enhanced images

22016 Signature Series - Moon FirstScope Telescope by Celestron

Celestron has joined forces with master lunar imager Robert Reeves on this new addition to the beloved FirstScope family: the FirstScope Signature Series: Moon by Robert Reeves. This quality Dobsonian-style telescope features a spherical glass mirror with a generous 76 mm of aperture. The FirstScope's wide field-of-view provides bright, sharp views of the Moon's mountains and craters in crisp detail. You'll also enjoy using the FirstScope to pan the Milky Way, explore open star clusters, marvel at Saturn's rings, or view favorite deep-sky objects like the Orion Nebula.

This compact, lightweight telescope is an ideal entry-level astronomical telescope. Just remove it from the box, insert an eyepiece, and you're ready to view. To navigate the sky, simply rotate the azimuth axis in the direction of your desired object. It doesn't get much simpler or more portable than the FirstScope.

Its compact design makes the FirstScope Signature Series easy to take along on your next camping trip, picnic, or hike. When not in use, the FirstScope Signature Series: Moon by Robert Reeves will be a stylish decorative fixture on your bookshelf or desk.

• Celestron's beloved entry-level telescope gets a stunning new look! The Signature Series FirstScope features a superb Moon image by astroimager and Team Celestron member Robert Reeves
• High-quality tabletop Dobsonian with a 76 mm reflector optical tube
• FirstScope artwork highlights key features on the lunar surface like craters and maria that you can explore for yourself with the telescope
• Simple, portable design that's easy to use for astronomers of all levels-a great choice for kids and families
• Also includes a free PDF download of the Lunar Landscapes ebook by Robert Reeves

Explore the Moon

Familiarize yourself with the Moon, our neighboring world. Robert Reeves' signature FirstScope comes with a custom wrap that highlights 10 lunar features to explore including Tycho, Plato, and Copernicus. Learn more about the Moon with Robert Reeves' Lunar Landscape eBook which goes into detail about the sizes of craters, how marias are formed, the natural history of the Moon, and other fascinating tidbits.

44423 2MP Digital Microscope Imager by Celestron

Turn your traditional microscope (stereo and biological) into a high-resolution digital microscope using a 2MP CMOS sensor digital microscope imager. Place the imager over the eyepiece of your microscope and stream the image to your computer via a USB cable. It's the perfect tool for hobbyists, teachers, students, medical labs, exhibits and more.

• 2MP image sensor makes a traditional microscope into a digital microscope.
• Capture images and video of your specimens via your computer.
• The microscope imager works with 23 mm to 30 mm diameter eyepieces.
• Connect the imager to your computer via USB 2.0 cable.
• New Celestron S-Viewer imaging software for Windows 7 /8 / 10.
• Imager itself compatible with Mac OS Photo Booth and Quick Camera.

Celestron S-Viewer Software

Use the included Windows software to capture images and video of your discoveries. Measure and annotate your specimens with built-in measurement and marking tools.

Note - S-Viewer software is only compatible with Windows (XP, Vista, Windows 7/8/10). Imager can be used directly as an external camera on Mac OS systems via Photo Booth or Quick Camera.

51635 StarPointer Pro Finderscope by Celestron

Spend less time centering your target and more time stargazing with Celestron's new premium finderscope: StarPointer Pro. Traditional red dot finderscopes were originally created for shooting sports such as airsoftairsoft guns and shooting sports. StarPointer Pro was designed for astronomers by astronomers to provide the easiest experience locating celestial objects in the night sky. Whether you're new to the hobby or a seasoned amateur astronomer, you'll appreciate StarPointer Pro's thoughtful design features.

While a red dot can obstruct your desired target, StarPointer Pro projects two circular LED reticles. Just place your target inside the circles and it's ready to view in the eyepiece. The circles also serve as a measuring tool while starhopping. For added convenience, StarPointer Pro offers a 40 mm optical window with a large field of view.

StarPointer Pro attaches quickly to any telescope and secures with a dovetail connection and finger knobs. No screwdriver needed!

Get more out of every stargazing session with StarPointer Pro.

• Designed by astronomers for astronomers, this premium finderscope allows you to precisely zero in on your target
• Projects a dual-circle reticle, not a red dot that can obscure your subject
• Larger 40 mm optical window offers a wider field of view so you can acquire targets quickly and easily
• Brighter LED for easy visibility during the day
• Easy dovetail connection; no tools required