$100 - $150

2429300 Zinc Reagent Set by AquaPhoenix

For determination of Zinc by the ZincoVer® Zincon method.
USEPA approved for wastewater analysis (digestion is required for determining total zinc) using Hach Method 8009.
Sample Size: 20 mL. Range: 0.01 - 3.00 mg/L Zn.
Set contains ZincoVer 5 Powder Pillows and Cyclohexanone for 100 tests.

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

WD-20250-42 USB Temperature/RH Datalogger by Digi-Sense

Each Digi-Sense data logger comes user ready with software, mounting clip and easy to following instructions. Intended applications include monitoring pharmaceutical, food & beverage, storage and office, museum, laboratory and transportation environments. Ease of use and affordability make these instruments ideal for any need where accurate temperature monitoring is needed.

Intuitive software supports two modes of data display and powerful data scaling and panning functionality. Data can be downloaded in spreadsheet compatible formats for analysis or graphically printed out. The durable polycarbonate housing and precision sensors and electronics are backed by a 2-year warranty.

Includes

software, mounting clip and hardware, protective plastic cover, and battery.

Wall Mount, Adjustable, For up to 30" Fans, Stainless Steel

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

90496-01 Adjustable Angle Bimetal Thermometer, 3" Dial, 24" L/0-250F/-20-120C by Digi-Sense

Accuracy is ±1% full-scale when stem is immersed 2" in liquids or 4" in gases (immerse models with a 2.5" stem length 2" in gases). Measured stem length from the top of the threads to the bottom tip of the stem. Stem dia is 0.25"; threaded connection is 1/2" NPT(M). All thermometers meet or exceed ASME B40.3 standards. Maximum environmental temperature for glass lens thermometers is 500°F (148°C).

• Greater temperature range
• Anti-parallax dial for accurate readings
• Hermetically sealed per ASME B40.3 standard to prevent fogging and protect against tough environments
• Rugged 304 stainless steel construction with a clear glass lens
• Recalibrate using the external reset screw

2610910 Bacteria Tests: Hach Paddle Test Total Aerobic Bacteria / Total Coliforms 10 pk by AquaPhoenix

Hach Paddle Testers allow fast, easy screening of water samples, solid surfaces, and nonviscous liquids where unsanitary conditions may exist. The paddle is a double-sided slide attached to the vial cap. Each side of the slide is used to perform a separate test. The slide has a molded-in grid for easy colony counting without opening the optically clear, leakproof vial.
Paddle Tester, Total Aerobic Bacteria/Total Coliforms (Tryptic Soy Agar/Violet Red Bile Agar), pk/10.

• Save time and simplify lab and field testing with Hach prepared P/A media
• Report Total Coliform values with EPA accepted Presence-Absence bottles and media
• Simplify routine testing with self-contained, easy-to-use Paddle Testers and BART™ products

93973 SkyPortal WiFi Module by Celestron

• Align and control your telescope wirelessly using your smartphone or tablet and Celestron's free SkyPortal app for iOS and Android devices.
• Tap any celestial object you see in the sky to identify it instantly. Tap again and your telescope slews to that object, centering it perfectly in the eyepiece.
• Explore 100,000 objects in SkyPortal's database. While you observe, view astroimages and listen to audio descriptions for hundreds of the most popular objects including the planets, Orion Nebula, Hercules Globular Star Cluster, and more.
• Sky Tour feature generates a list of all the best stars, galaxies and nebulae to view based on your exact time and location.
• WiFi module is compatible with all current Celestron computerized telescopes and select older models. Unit does not require batteries or external power.

Get WiFi Access to the Universe with the SkyPortal WiFi Module

Simply plug the WiFi module into your telescope's Hand Control or AUX port and connect to its wireless signal with your device. Instantly, your device becomes a wireless hand controller for your telescope, guiding you through the alignment process and slewing to any celestial object with a simple tap.

As SkyPortal Wifi Module slews your telescope to an object, you can listen to hundreds of included audio descriptions on your device, which explain the history, mythology, and key features of the most popular celestial objects.

Select Tonight's Best in the search menu and SkyPortal Wifi will display a list of the best objects to view based on your exact time and location. There's no need to input GPS coordinates or set the time and date SkyPortal WiFi takes this information directly from your device.

SkyPortal WiFi makes a great gift for telescope users of all ages and skill levels, from kids to advanced users. Take your family on a guided tour of the universe with SkyPortal WiFi!

SkyPortal WiFi Module, Powered by Celestron SkyPortal

Developed in collaboration with the experts at SkySafari, SkyPortal offers an intuitive user interface with a robust database of more than 100,000 celestial objects. You can even plan your observing session before you set up your telescope, viewing lunar transits and other notable events up to 100 years into the future.

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

2449400 Molybdenum Reagent Set, 20 mL, 100/pk by AquaPhoenix

For determination of low range Molybdate Molybdenum by the Ternary Complex method. Hach Method 8169. Range: 0.02 - 3.00 mg/L Mo Sample Size: 20 mL Reagent Set includes: Molybdenum 1 Reagent (LR) Molybdate Powder Pillows and Molybdenum 2 Reagent Solution for approximately 100 tests.

90550-70 Dampened Back-Con Bimetal Thermometer, 3" Dial, 24" L/50-550F/10-290C by Digi-Sense

Accuracy is ±1% full-scale when stem is immersed 2" in liquids or 4" in gases (immerse models with a 2.5" stem length 2" in gases). Measured stem length from the top of the threads to the bottom tip of the stem. Stem dia is 0.25"; threaded connection is 1/2" NPT(M). All thermometers meet or exceed ASME B40.3 standards. Maximum environmental temperature for glass lens thermometers is 500°F (148°C).

• Dampened movement
• More economical than silicone gauges
• Greater temperature range than a silicone-filled gauges
• Anti-parallax dial for accurate readings
• Eliminate the risk of a leaking case and cross-contamination
• Rugged 304 stainless steel construction with a clear glass lens
• Recalibrate using the external reset screw
• Hermetically sealed per ASME B40.3 standard to prevent fogging and protect against tough environments

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

90550-54 Dampened Bottom-Con Bimetal Thermometer, 3" Dial, 9" L/50-550F/10-290C by Digi-Sense

Accuracy is ±1% full-scale when stem is immersed 2" in liquids or 4" in gases (immerse models with a 2.5" stem length 2" in gases). Measured stem length from the top of the threads to the bottom tip of the stem. Stem dia is 0.25"; threaded connection is 1/2" NPT(M). All thermometers meet or exceed ASME B40.3 standards. Maximum environmental temperature for glass lens thermometers is 500°F (148°C).

• Dampened movement
• More economical than silicone gauges
• Greater temperature range than a silicone-filled gauges
• Anti-parallax dial for accurate readings
• Eliminate the risk of a leaking case and cross-contamination
• Rugged 304 stainless steel construction with a clear glass lens
• Recalibrate using the external reset screw
• Hermetically sealed per ASME B40.3 standard to prevent fogging and protect against tough environments

4447-01 Iron Test Kit: LaMotte Total Iron Octa-Slide by AquaPhoenix

LaMotte Iron (Total) Test Kit, 0.5-10 ppm, This kit tests for Iron using the Octa-Slide 2 Comparator. Range and sensitivity is 0.5, 1.0, 2.0, 3.0, 4.0, 6.0, 8.0, 10.0 ppm Fe. 90 tests.

90446-58 Temperature Probe, Type K, 9" L, Fiberglass, Stainless Overbraid 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

93480 Tripod for StarSense Explorer Tabletop Dobsonian Telescopes by Celestron

Enjoy a more comfortable viewing experience with your StarSense Explorer Tabletop Dobsonian telescope with this adjustable-height tripod. Adding this solid, sturdy tripod allows you to set up your Tabletop Dobsonian at the perfect viewing height for everyone in your group and avoid lower obstructions.

Durable Construction

The Tripod for StarSense Explorer Tabletop Dobsonians securely locks your Dobsonian base and telescope to the tripod using three captured screws on the underside of the mounting plate. The integrated accessory tray functions as a center support to make the entire structure stiff and rigid. It can also hold up to five additional 1.25" eyepieces. The all-metal tripod is constructed from high-quality materials that can withstand years of use in tough outdoor conditions.

Viewing Comfort

Achieve the perfect viewing position with ease. The tripod comes with three adjustable, stainless steel 1.5" diameter legs. Whether you prefer to observe standing up or sitting down, you can find the most comfortable position for an immersive stargazing experience. The raised tripod helps to combat viewing obstructions like fences and low-profile trees.

Designed with portability in mind, this tripod is lightweight and foldable, so it's easy to transport and set up at your favorite observing locale. Spend less time assembling and more time exploring the wonders of the night sky. When you're done observing, the legs fold inward and stow neatly under the mounting plate.

• Solid, sturdy tripod exclusively for the StarSense Explorer Tabletop Dobsonian
• Securely lock your Dobsonian base and telescope to the tripod with three captured screws
• Customize the telescope's height with adjustable tripod legs.
• Built-in accessory tray holds your eyepieces and other essentials when not in use
• Tripod legs collapse for easy transport