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Celestron Smart DewHeater Controller 2X

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$233.95

$ 97 .99 $97.99

In Stock

1.Style:Smart Dewheater Controller 2x


  • Using real-time data, the controller provides just enough heat to prevent dew from forming, prolonging battery life
  • “Smart control” system monitors ambient temperature and humidity and adjusts power to the dew heaters automatically
  • Compatible with Celestron Dew Heater Rings and third-party heating bands or straps (with thermistor accessory)
  • Supports up to two dew heaters plus one additional 12V DC device, such as your mount
  • Works with your Celestron telescope’s hand control or CPWI telescope control software so you can view data and make manual adjustments


Work smarter, not harder, when it comes to combating dew. The Smart DewHeater and Controller 2x prolongs your battery life by optimizing power usage for up to two dew heaters. The controller gathers and analyzes information in real time to warm your optics just enough to prevent dew. The Smart DewHeater and Controller comes with two ports to control two dew heaters at once. You can use one port to heat your optical tube while the other warms a second optical tube, a guide scope, an eyepiece, or another accessory. The controller also features an additional 12V DC output port so you can power another 12V DC device, such as your mount. The Smart DewHeater and Controller works seamlessly with Celestron’s Dew Heater Rings, which have a built-in thermistor to provide temperature readings of the corrector lens. Third-party dew heater bands or straps are also compatible; you simply need to add Celestron's Thermistor for Smart DewHeater Controllers (sold separately). Smart Controls At the heart of the controller is a powerful microprocessor that gathers information from the sensors, computes the data, and automatically adjusts your dew heaters. The controller monitors the ambient temperature and humidity using its integrated environmental sensor and monitors the heaters’ temperatures using thermistors. You can run the Smart DewHeater and Controller 2x as a standalone accessory. Or, if you want to view data from the controller and make manual adjustments, you can connect it to your Celestron telescope’s hand control or your PC. The controller works with NexStar+ or StarSense hand controls running the latest firmware or Celestron CPWI telescope control software, included with every Celestron mount. Power The Smart DewHeater and Controller 2x runs on a 12V DC battery (like our PowerTank Lithium Pro or PowerTank 17) and can handle a maximum power of 120W (10A max current @ 12V DC). The controller also features a 12V DC output port. You can use this extra port to power another device, like your mount. This way, you can power your entire setup from a single source. Resettable electronic fuses prevent damage if input or output current draw becomes too high. NOTE: If you are using two dew heaters in heavy dew conditions and powering a 12V DC device, the controller may be operating near its power limit. In this case, one PowerTank Lithium Pro or PowerTank 17Ah will not have enough capacity to run your setup all night; you'll need a larger capacity battery or multiple batteries. Unique Industrial Design The Smart DewHeater and Controller 2x features a heavy-duty metal housing. Inside, a cooling fan protects the controller’s electronics. The Bridge – On top of the controller, you will find the bridge, which is home to the device’s status LEDs and environmental sensors. It also helps with cable management. We have positioned the temperature and humidity sensors here, away from the control box and other components that could generate heat. Unlike competitor products, our sensors do not require additional cables to obtain accurate readings. The LED lights on the bridge indicate the device’s current status. The LEDs provide warnings if the controller is drawing more current than your power source can supply or if the battery charge needs recharging. You can dim the lights if you are under dark skies. Mounting – The Celestron Smart DewHeater and Controller 2x mounts on your CGE or CG-5 dovetail with the integrated dovetail clamps. If you prefer to mount the controller on your tripod leg, use the included strap. Smart DewHeater and Controller 2x comes complete with: Smart DewHeater and Controller 2x Tripod leg strap Controller power cable Power cable for external 12V DC device AUX cable for connecting to Celestron mounts Thermistor extension cable to attach to Celestron’s Dew Heater Ring Enhance your setup We highly recommend pairing this controller with Celestron Dew Heater Rings. They fit seamlessly on your Schmidt corrector lens and will improve your observing or imaging year-round. For the highest level of dew prevention, we also suggest adding a dew shield to your setup. While not required, a dew shield will cut down on the amount of power the controller needs to provide to the dew heater rings to keep your optics clear.


Foodog
2025-08-19 11:32:48
I've very pleased with this purchase. I made a slight mistake initially and hooked up the power incorrectly, but this thing has protection technology built in to prevent damage when a knucklehead like myself dorks up. Dont hesitate, if you have a problem with Dew, you need to get on this ecosystem.
LA6507
2025-08-11 13:50:13
Firstly, the ONLY CON I have for this marvelous DEW Heater/Controller is that there are still no ASCOM drivers as of September 1st 2023 at 6:30pm EST. Now that this ugly disclosure is out of the way...I absolutely love EVERYTHING else about it! Celestron has full support and telemetry in CPWI and their (seriously outdated) hand controllers so all bases are covered but I would love to see ASCOM/native support in N.I.N.A. for this incredibly versatile controller. I mounted the MeLE miniPC Q3 on top of my C9.25 XLT SCT (using the inlcuded VESA mount and a Losmandy dovetail rail) and because the 4x controller has an integral USB 3.2 hub, all of myUSB devices (cameras, focus wheel, focuser) and the hand controller plug into the hub and I run a single, very short USB cable into the adjacent miniPC. The four Dew Heater ports with thermistor inputs are generous but self-explanatory and highly configurable in the software. Best part is that the Celestron software intelligently controls and monitors the dew rings rather than a DIY/homebrew setup. Next, the integrated AUX port hub (which consists of three ports) is great and does the job of the add-on AUX port accessory Celestron has sold for years.What really won me over on purchasing this gem was the additional variable DC voltage power output port (selectable on the HC and in CPWI) which future proofs this controller so when I eventually replace my miniPC, I will have the ability to adjust the power input voltage to exactly match my future PC's needs. I also love how the Controller can be used as a standalone device OR with a PC (or even the HC) for monitoring and control of parameters in CPWI.I will say once more to you CELESTRON: WE NEED AN ASCOM DRIVER/PLUGIN FOR N.I.N.A. - It is 2023, so providing ASCOM support should be the norm for astrophotography!
Harold Spangler
2025-08-02 21:18:18
Since using this with the Celestron dew heater ring on my EdgeHD 8, I’ve had no dew problems. I’m looking forward to using it to control a heater strap on my guide scope (when not using OAG).
Gr8 lights fit 2015 freaightliner perfect
2025-07-11 17:44:12
Haven’t used yet but best price I’ve found excellent delivery
Shane
2025-06-16 15:41:03
After two months the cooling fan bearing are failing. They are very loud and causing unnecessary vibrations in my OTA. I could never get the USB bus to show items as connected in CPWI interface. Occasionally these connected items would still work under NINA & Windows 11 but usually not. The dew heater controller, 12v power bus and Aux extension bus are all flawless and very useful. The case build quality and mounting options are very nice as well. I will probably just replace the cooling fan myself as paying for shipping to Celestron and being without a complete rig for months is not something I want to deal with. The USB bus I will accept as a headache I caused myself by getting a Celestron item instead of the Pegasus.
NoWayNoHow
2025-06-01 12:23:29
Since installation have not had a dew problem with it.
Master of Cats
2025-05-15 12:01:05
Lost several good nights using this on my Celestron EdgeHD 8".This doesn't work as advertised. Yes, it does power your Celestron Dew ring, but runs it way too hot, even on the lowest amp setting on Auto, it runs WAY too hot, like 70F on a night that's 40F and the dew point is 39 degrees, it should be running at about 42 F. Tops.Yes I changed the settings to lowest on the Celestron software and a laptop, and I did the Calibration (which takes longer than you'd think, but it is drying the censor.)At 70F it makes stars have weird shapes in your photos, and worse yet, puts an odd gradient pattern on subs, making your data unusable.This is a known issue. Celestron needs to issue a Firmware update to deal with it. If you search on CloudyNights or the FB groups for Edge HD scopes, people talk about this.Anyone saying "it's great" is usually (or always)A. Living somewhere that's not cold and wet (I live in Pacific Northwest USA, cold and very wet.)B. Running it on Manual on Low. If you're going to do that, save yourself a lot of money and use ANY power supply or just run it for free if you have an ASIAIR or similar. (note, if you do that, start at like 5 percent and use the shield that clips on the end of the scope and extends. That actually does the job in most situations and if you need heating, it's very low heat, like lower than even a standard dew strip on full.)This with the Dew Ring could be a great system but Celestron needs to fix the controller (and also the rings, a lot of them have cold spots).
Scruffy Lookin'
2025-03-17 17:23:32
Mounting the Dew-Heater Controller to the front of the scope, you may need to make a weight/balance adjustment. Once installed, you can monitor/adjust the voltage using the hand controller (may require a firmware upgrade) or CPWI software if you are using it to guide your scope. When sensed, it will appear as an option on the main menu. With two aux ports, you can connect StarSense or SkyPortal. You can also connect the power out cable to the base unit to drive the telescope. You also have the ability to connect directly to a computer using the USB port, eliminating the chance of a dropped signal resulting in loss of guiding. The unit can power two dew heaters, if you need one for your guide scope as well as the telescope. It takes less than 10 minutes to defog a CPC1100 EdgeHd at 41 degrees.
Rob A.
2025-03-13 20:26:58
Powered up via tank...-9 c...clear corrector before the scope aligned. All I need.Bonus in reducing cable clutter.
Graham
2025-02-04 15:58:13
This is a smart dew controller with sensors to control dew build up on the main mirror and eyepieces. It is solidly made and can fit on the rail of the SCT tube. It is fully controllable via the celestron portal app on Android or software from Celestron on PC. The heater can be powered by the scopes battery or a 12v adapter from the mains power. An essential accessory to extend observing times during the cooler and best time of the year.
RobnEva
2025-01-31 14:20:09
Ive had trouble connecting focusers, heaters, mount etc and needed lots of cables etc.Since getting this product, it has made connections with all my equipment that much simpler with one interface and one cable to the pc (or Wifi if I bother).I use AC power for my mount connection, I do not use the provided battery adaptor. I can see the power being used on my PC, so if a battery was connected, I would have good control on the power and amp limits etc.To power the focuser, you need to get the right AUX cable, not provided in this package. I used one and had issues with power before realising it was the cable type being used that was not right. Since changing it to the right cable for power, it all works well together.I got this 4X option to allow me to connect and power all the peripherals on one spot and it did the trick though I am at the limits for USB and AUX connections. I still have room to add more dew heaters if needed. And if I need more USB ports, my camera has a few available so all good.So after years of frustration, everything works now and is pure heaven and suits my astrophotographic needs.NOTE: The image is the only shot I had and it was before I tidied up the cables
Daniel
2025-01-14 16:55:13
had this for awhile and there is a few little defects it has, screws pull the jacket out when you clamp it to the dovetail, however this is a minor con in the aspects of all the pro's, such a shame it has went up in price so much now i was going to buy again.
Customer
2024-12-03 18:31:23
I am happy I outlaid the money for this.Not only does it manage the dew & power levels of the equipment on my telescope, it also allows me to connect to the electronics of the mount as if they were built into the tripod.Make connection to the telescope very reliable.