$50 - $75

94051 Dew Heater Ring - 8" 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 8" Celestron Schmidt-Cassegrain, EdgeHD, and RASA 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

Part Number: M5IRBAT0501

Part Number: GABMAX3

BK-1000-P Beaker, Plastic 1000mL by AquaPhoenix

Continuously use Nalgene™ PMP Griffin Low-Form Beakers at temperatures of 150°C with intermittent service to 175°C. These polymethylpentene beakers have the transparency of glass, excellent chemical resistance and heat tolerance. All sizes of beakers have easy to read, silk-screened graduations.

Part Number: P197830VN

Part Number: XTRSD10

Part Number: GAHM5

*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

Part Number: M5BAT0502B

Part Number: P1016300PN

Part Number: 17L-348

Part Number: P1978.5VN

Old Part Number: P1016100
New Part Number: P1016100PA

Part Number: GAXTSS

AI1104 pH Calibration Solution Kit (7.00, 4.00, 10.01) 16oz/bottle+3M KCl storage solution 4oz+CalPod by Apera

The Apera Instruments AI1109 pH Calibration Buffer Solution Kit includes three 16oz bottles of pH buffer solutions (pH 4.00, pH 7.00, and pH 10.01), one 4oz bottle of 3M KCL storage solution for pH/ORP electrodes, plus one piece of Apera's unique Cal, which helps users to organize all the solutions in one place and create no more mess in the calibration process.. The color-coded buffer solutions are standardized against NIST certified pH references within 0.01 pH at 25°C (77°F). It's ideal for the calibration of all kinds of pH meters. Since pH level is affected by temperature, a temperature/pH reference chart is provided on the bottle label for reference. The 3M KCL Storage Solution helps keep the sensitivity and accuracy of your pH probes.

All the solutions are double-sealed, not subject to the DOT shipping restrictions, and have a 2-year shelf life. The expiration date is printed on the bottle. MSDS documents are downloadable.

Note: Store at room temperature and away from direct sunlight. Keep the bottle tightly closed when not in use. Keep out of reach of children.

• High Accuracy (±0.01 pH): standardized against NIST certified pH references within 0.01 pH at 25°C (77°F). Ideal for the calibration of all kinds of pH meters
• Color-coded, Double-sealed, 2-Year shelf life. Expiration date and Temperature/pH reference chart provided for reference
• Apera's unique Cal included, no more mess for your meter's calibration
• The 3M KCL Storage Solution helps keep the sensitivity and accuracy of your pH probes
• Non-hazardous product (MSDS is downloadable)