$75 - $100

94052 Dew Heater Ring - 9.25" by Celestron

The Celestron Dew Heater Ring is the ideal dew prevention solution for your Celestron telescope. This must-have accessory will improve your observing or imaging nights year-round. The Dew Heater Ring permanently mounts to your 9.25" Celestron Schmidt-Cassegrain and EdgeHD optical tube, replacing your retaining ring, so you'll never be caught without it. The installation process is quick and easy (follow the manual for instructions).

How it works

The Dew Heater Ring replaces the plastic retaining ring on your Schmidt corrector lens for efficient heating across the lens. The ring is constructed of lightweight, durable aluminum. Its rigid frame supports the cable circuity and the telescope's Schmidt corrector lens. Unlike other heating bands or strips that inefficiently heat the lens cell to warm the glass, the Celestron Dew Heater Ring heats the corrector glass directly, providing the most efficient transfer of heat to prevent dew formation.

Simply plug the ring into an external 12V DC power source for consistent, continuous heat that will prevent dew from forming even under heavy dew conditions. The Dew Heater Ring features two storage clips to keep the power and thermistor jacks secure when not in use while accommodating the telescope's dust cover.

The Dew Heater Ring also comes with a cable management clip that connects to the telescope's front cell. Corral the power and thermistor jack to prevent them from dangling and reduce unwanted pulls on the cable connection to the rings.

The Dew Heater Ring comes complete with:

• Dew Heater Ring
• Cable management clip
• Power jack extension cable
• Paper installation shield

Enhance your setup

To achieve the highest level of dew prevention while maximizing power efficiency, we strongly recommend pairing the Dew Heater Ring with a Smart DewHeater Controller (sold separately). The controller uses the ring's built-in thermistor and its internal environmental sensor to provide just the right amount of heat to the corrector to prevent dew based upon the ambient temperature, ambient humidity, and temperature of the Schmidt corrector, which can dramatically reduce the ring's power draw, greatly increasing battery life. The ring also includes an extension cable for connecting the ring directly to one of the controllers' heater output ports, or to a third-party controller's heater output port. (Note: the ring's integrated thermistor is only compatible with the Celestron Smart DewHeater Controllers).

We also recommend adding a dew shield to your setup. While not mandatory, a shield will cut down on the amount of power the Dew Heater Ring needs to keep the optics clear.

• Heater ring provides the most efficient heating directly to the corrector lens to prevent the formation of dew
• Permanently mounts to your existing telescope tube for a seamless look–plus, you'll never forget to bring it with you
• Integrated thermistor continuously monitors the temperature of the corrector lens when used with the Celestron Smart DewHeater Controllers.
• Rigid, lightweight, and durable aluminum construction
• Included storage clip and cable management clip keep your cables organized

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

MKLP42-7B Low Pressure Mist Kit for 42" Fans; 7 x 0.012" Nozzles, Black by Schaefer

Instantly convert your circulation fan into a misting fan with Schaefer low pressure misting kits. The misting kits can reduce air temperature up to 30°F with wind from a fan and standard water pressure from an ordinary garden hose. The kits are easy to use with push releasable connections and optional ball valve water shut offs. Available for fans of all sizes, Schaefer mist kits provide an easy economical solution for your evaporative cooling needs.

Features and Benefits:

• 1/4" black polyethylene tubing for durability and resistance to cracking
• Brass and stainless steel nozzles to atomize the water
• Push releasable nozzles and fittings for easy cleaning
• Optional ball valve for quick and easy shutoff of water supply
• Standard garden hose connection for water pressure, no additional power required
• Minimal water consumption, as low as 1.7 gallons per hour, for energy efficiency and low environmental impact.
• 8 foot water supply line connection from ring to base
• Two year warranty
• Made in the USA

TK1026-Z Alkalinity (Hydroxyl) Test Kit, 1 drop = 10 or 50 ppm as CaCO3 by AquaPhoenix

EndPoint ID Drop Count Test Kit, Hydroxyl Alkalinity

1 drop = 10 or 50 ppm as CaCO3 / 25 mL

Build your brand with EndPoint® ID test kits that are private labled with your company logo and contact information. EndPoint ID test kits include color pictures, icons and video to help simplify the testing process. Each kit comes with instructions, reagents, and test vial all packaged in a durable plastic case. Test kit case and reagents can be private labeled with your company logo and contact information.

EndPoint ID Features:

• Color coded caps for easy test parameter identification
• Color pictures to help identify color changes while testing
• Scannable QR codes link to training videos via your smart phone
• Visual icons for testing and safety tips to remind users of best practices
• Interferences are listed for increased accuracy
• Printed on durable synthetic paper that is waterproof, chemical-resistant and tear-resistant
• Private labeled with your company logo and contact information

Part Number: 500C

Part Number: H10163.5VM1

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

GHS1219 Face Shield PPE Hazard Class Pictogram Label (1"), 1120/Pad by GHS Safety

Provide your employees with a quick and easy way to identify Personal Protective Equipment & Hazard Class requirements. GHS labels are manufactured on a high gloss paper stock with pressure sensitive adhesive for ease of application and longer durability. Designed to be used with you in house labeling system where color printing isn't an option.

Make clean, professional looking labels in minutes. Labels are printed in sheets and padded with a cardboard backer for ease of use. Each sheet is perforated to allow removal when completed.

Labels are sold in pads. 1" diameter labels come 1,120 labels per pad. 1/2" diameter labels come 1,820 per pad.

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

Part Number: H10111000PM1

18525-20 Type K Spring Loaded Ind Thermocouple Probe Probe 12" L, 12" Ext .250 Dia, Ung Jct by Digi-Sense

These probes cannot be inserted directly into a medium. Spring loaded industrials are not sealed where the threads meet the probe. They must be inserted into a thermowell or other sealed vessel.

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)

• The probes can be installed with current housing without having to purchase a whole new industrial assembly
• Response Time: 3.75 seconds or greater
• Each probe comes with ½" NPT insertion threads
• Probes are spring loaded which allows the probe to be bottomed out into a thermowell
• Probes are welded and sealed which allows for direct insertion into a vessel
• Custom designs or changes to this product are available upon request
• Each probe comes with a color coded ANSI stripped leads: type J-red/white, type K-red/yellow, type T-red/blue

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