$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

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.

14315 Star Bristle Wire STST 6" by Wohler

The Wohler Brushes are designed in various sizes and materials to meet your cleaning needs. We develop and manufacture our cleaning systems and brushes for chimney stacks, boilers and ventilation systems to meet the needs of professionals.

No matter how large or small the pipe, no matter how dirty it is there is a professional Wohler brush for every application. For over 85 years, craftsmen, plumbers and chimney sweeps have relied on the quality of Wohler cleaning tools and have never been disappointed. From the largest Wohler Viper XXL to the handy Wohler Viper S, we place high importance on excellent cleaning performance, easy handling and consistent quality.

K-3803 Cyanide Vacu-vials® (0-0.400 ppm) by AquaPhoenix

0590 0013 Set Lead Extensions (straight plug) by Testo

The cables supplied with the measuring instrument are not always the best solution. Depending on the application, a measuring cable extension is the best choice. Because you can make a direct connection between the measuring instrument and for instance a banana jack, without needing to use cumbersome crocodile clips. The same applies for example to test sockets, which are often present on boards. The measuring cable extension can also be used for crocodile clips, such as the Testo safety crocodile clips (0590 0008), which means there are universal application options.

• CAT IV 600 V / CAT III 1000 V measurement category
• Maximum current: 10 A
• 1 set of measuring cable extensions with straight plug
• For attachment onto standard measuring cables

Includes:

1 set of measuring cable extensions (straight plug) , length: 1115 mm.

BH-9000-P Bottle Stand by AquaPhoenix

Plastic bottle holder for 500mL poly squeeze buret bottle.

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

94460-12 Talking 1-Channel Digital Clock/Timer by Digi-Sense

A clear human voice announces time remaining in count-down mode - no need to visually check. Announcements increase in frequency as tim approaches zero. In clock mode, press any button and the voice will announce the time. Perfect for low-light applications, darkrooms, and activities that require your full attention.

Includes

a built-in tilt stand, pocket/belt clip, magnetic strip and two 1.5 V button cell battery.

K-8503 Phosphate (Ortho) Vacu-vials® (0-80.0 ppm) by AquaPhoenix

18523-29 Type J Thermocouple Quick Dis-connector, with Std-Connector, 6" L, .250 Dia. Grounded Junction by Digi-Sense

The temperature range is for the probe tip only. The handle material may be affected if the probe is rated higher than the handle depending on exposure time, application, and handle material. ABS handles are rated to 220°F (104°C); PVC handles are rated to 200°F (93°C); Stainless Steel handles are rated at 450°F (232°C); Mini Connectors are rated to 392°F (200°C)

• Ideal for measuring liquids, gases, or semi solids
• Designed with 316 Stanless Steel sheath
• Response Time: 1.2 - 5 seconds or greater
• Includes a stand alone female connector for instalation to a thermocouple extension cable
• Each probe comes with a color coded ANSI dual standard connector: type J-black, type K-yellow, type T-blue, and type E-purple.
• Custom designs or changes to this product are available upon request.

90308-94 Irreversible 6-Point Horizontal Temperature Label, 210-261F/99-127C; 10/Pk by Digi-Sense

Labels are made up of a series of temperature-sensitive elements sealed between heat-resistant substrates with transparent windows. Each element changes color distinctly as its rated temperature is met or exceeded. The changes to the label are irreversible, providing a temperature history of the surface being monitored. The labels will not delaminate when removed, allowing them to be attached to an inspection report to serve as a permanent record. Ideal for use in the food, automotive, molding and metal working industries. Accuracy is ±1.8°F below 212°F and ±1°F above 212°F. Shelf life: 1 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