$25 - $50

*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

*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

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

C-2710 Chlorine Dioxide Comparator (flat) by AquaPhoenix

C-2710 High Range Chlorine Dioxide Comparator is a component of K-2705 Chlorine Dioxide CHEMets Visual Test Kit and is designed to be compared against the color formed in R-7404 Chlorine Dioxide CHEMets Refill. The comparator's range is applicable for many disinfection and drinking water applications. Color standards are pink in color and cover a range of 0-10.0 ppm chlorine dixoide (ClO2).

94115-A 1.25" Star Diagonal by Celestron

The Celestron 1.25" Star Diagonal slides into the focuser (1.25") of your refractor or catadioptric telescope and accepts standard 1.25" eyepieces, allowing you to view objects more comfortably. A diagonal that is angled at 90° helps avoid neck strain when looking through through the eyepiece.

Please note that a 90° diagonal will display images that are right side up, but left to right orientation will be reversed.

• Fits telescopes with 1.25" focusers or visual backs, 90° viewing angle, best for observing objects overhead.
• Accepts standard 1.25" eyepieces, Barlow lenses, and other accessories with a 1.25" insert barrel.

09035-47 Reversible 13-Point Horizontal Temperature Label, 36-48C / 97-118F; 10/Pk by Digi-Sense

These self-adhesive reusable temperature labels provide a safe, accurate, easy-to-read means for monitoring temperatures. Indicating strips use liquid crystal technology to display the current temperature at an economical cost. The strip will turns a green color when ambient temperature is reached. Shelf life: 1 year after date of purchase.

• Non-toxic / non-hazardous temperature measuring alternative
• Easy to read and unbreakable

09035-48 Reversible 13-Point Horizontal Temperature Label, 48-60C/118-140F; 10/Pk by Digi-Sense

These self-adhesive reusable temperature labels provide a safe, accurate, easy-to-read means for monitoring temperatures. Indicating strips use liquid crystal technology to display the current temperature at an economical cost. The strip will turns a green color when ambient temperature is reached. Shelf life: 1 year after date of purchase.

• Non-toxic / non-hazardous temperature measuring alternative
• Easy to read and unbreakable

09037-09 Reversible 7-Point Horizontal Temperature Label, 60C-90C/140-194F; 10/Pk by Digi-Sense

These self-adhesive reusable temperature labels provide a safe, accurate, easy-to-read means for monitoring temperatures. Indicating strips use liquid crystal technology to display the current temperature at an economical cost. The strip will turns a green color when ambient temperature is reached. Shelf life: 1 year after date of purchase.

• Non-toxic / non-hazardous temperature measuring alternative
• Easy to read and unbreakable

90308-90 Reusable Low-Temperature Labels, Cooler, 34 to 50F (1 to 10C); 10/Pk by Digi-Sense

These self-adhesive reusable temperature labels provide a safe, accurate, easy-to-read means for monitoring low temperatures. Indicating strips use liquid crystal technology to display the current temperature range at an economical cost. Shelf life: 1 year after date of purchase.

• Nontoxic nonhazardous temperature-measuring alternative

98767-44 Traceable Waterproof Food Thermometer with Calibration; ±0.4°C accuracy at tested points by Digi-Sense

ABS body, stainless steel probe, and waterproof rating make this thermometer ideal for use in washdown areas, labs, and the field. Unique holder allows probe to be positioned at any height while attached to beakers, stainless cylinders, or vats. Meter features selectable °F/°C units and Min/Max readings.

Traceable® Products have an individually-numbered Traceable® Certificate provided with each unit, that assures accuracy from our ISO/IEC 17025:2017(1750.01) calibration laboratory accredited by A2LA. It indicates traceability of measurements to the SI units through NIST or other recognized national measurement institutes (NMI) that are signatories to the CIPM Mutual Recognition Agreement. Each product goes through an intense vetting process before it can carry the Traceable name, thus saving you both time and money by not having to calibrate separately.

• Includes NIST-Traceable certificate from our A2LA accredited (1750.01) calibration laboratory|Position probe at any height using a unique holder|Flat design and lightweight - easily carry in a shirt pocket|Readings updated every second
• Features enhanced accuracy

Includes

probe holder, key chain, lanyard, pocket clip, button cell battery, and NIST-traceable certificate with data.

K-2050 Chloride - Titrets Titration Cells, 50-500 ppm by AquaPhoenix

Increments: 50, 55, 60, 65, 70, 75, 80, 90, 100, 125, 150, 175, 200, 250, 350, 500 ppm

Benefits of Titrets Technology:

• Dependable, sealed single-use titrants
• Fast, easy procedure – no need to count drops
• No burettes or other equipment necessary
• Perform a titration ANYWHERE