Controls 2 independent dew heater channels Provides 7A max 12V DC power output for mounts or accessories Integrated environmental sensor for real-time temperature and humidity Mounts directly to CG-5 and CGE dovetails Full control and monitoring via PC with CPWI software Description FAQ Specifications In the Box Downloads Warranty Celestron Smart DewHeater Controller 2X The Celestron Smart DewHeater Controller 2X intelligently manages two independent dew heater ports and two thermistor inputs to keep your optics clear while optimizing battery life. It simplifies your setup's power distribution with a dedicated 12V DC output port capable of supplying up to 7A, all while drawing from a single 12V DC input rated for a maximum of 10A. Housed in a durable 1.2 lbs aluminum enclosure, the controller integrates seamlessly into your rig via its built-in clamp for CG-5 and CGE dovetails. Intelligent Dew Prevention: 2 Channels with Real-Time Optimization At the core of the Smart DewHeater Controller 2X is a microprocessor that analyzes real-time data to deliver just enough power to prevent dew, significantly extending the life of your field battery. It uses an integrated environmental sensor to monitor ambient temperature and humidity, while two thermistor ports track the precise temperature of your optics. This closed-loop system ensures your primary telescope, guide scope, or eyepieces are kept perfectly clear without wasting a single watt. Dual Channel Control: The two RCA-style dew heater ports can power Celestron's Dew Heater Rings or third-party heater straps independently. Accurate Temperature Sensing: When paired with Celestron Dew Heater Rings, the built-in thermistors provide direct feedback. For other straps, an optional Celestron Thermistor can be added. Standalone or Connected Operation: Use it as a set-and-forget device, or connect it via one of the two AUX ports to a NexStar+ hand control or via the USB 2.0 Type B port to a PC for full control with CPWI software. A Central Power Hub: 7A DC Output and CPWI Control The controller consolidates your power needs into a single, protected unit. A dedicated 12V DC output port delivers up to 7A, easily powering most computerized Celestron mounts. This allows you to run your entire imaging rig—mount, heaters, and controller—from one power source like a PowerTank, simplifying cable management and reducing potential failure points. High-Current Output: The 5.5mm/2.1mm barrel connector provides stable power for your most critical equipment. Robust Power Input: A threaded 12V DC input barrel connector ensures your main power cable won't accidentally disconnect, accepting up to 10A max current. Complete Software Integration: When connected to a PC, Celestron CPWI software displays real-time data on power consumption, sensor readings, and heater output, giving you full manual override capabilities. Built-in Protections: Electronic protections against reverse polarity and low voltage cutoff safeguard your connected equipment. The included 10 ft. power cable is also 10A fuse protected. Field-Ready Design: 1.2 lbs Aluminum Housing and CG-5/CGE Mounting Built from a rugged aluminum chassis, the 1.2 lbs Smart DewHeater Controller 2X is designed for reliability in the field. An integrated fan keeps the internal electronics cool during heavy use. The unique "Bridge" structure physically separates the environmental sensors from the main body, preventing heat from the electronics from skewing ambient temperature and humidity readings—a critical detail for accurate dew point calculation. Integrated Mounting: A built-in dovetail clamp allows for secure, tool-free attachment directly to CG-5 or CGE-style dovetail bars. An included strap also provides an option for mounting to a tripod leg. Informative LEDs: Dimmable LED indicators on the bridge provide at-a-glance status on power and heater activity, with warnings for low battery voltage or excessive current draw. Smart Cable Management: The bridge design also serves as a convenient anchor point for routing cables, keeping your setup clean and snag-free. How does the Smart DewHeater Controller 2X save battery life? Instead of running dew heaters at 100% power all night, the Smart DewHeater Controller 2X uses its integrated environmental sensor and connected thermistors to calculate the exact dew point. It then delivers only the minimum power required to keep the optics' temperature just above that point, dramatically reducing overall power consumption compared to simple manual controllers. Can I power my Celestron mount and two dew heaters with the Smart DewHeater Controller 2X? Yes. The controller is designed for this purpose, featuring a 12V DC output port with a 7A max capacity, which is sufficient for most modern mounts. However, be mindful of your total power budget. In very heavy dew, running two large heaters and a mount may draw close to the controller's 10A max input limit and will require a high-capacity battery to last an entire session. What do I need to use the Smart DewHeater Controller 2X with non-Celestron dew straps? The controller's two heater ports use standard RCA jacks compatible with most third-party dew straps. To enable the "smart" functionality, you must also purchase a separate Celestron Thermistor for Smart DewHeater Controllers and place it against your optical surface, connecting it to the corresponding 2.5mm thermistor port. Can I control the Smart DewHeater Controller 2X without a PC? Absolutely. The controller can function as a standalone, fully automatic device right out of the box. For manual control and data display without a PC, you can connect it to a NexStar+ or StarSense hand control using one of the two included AUX ports and the provided AUX cable. How does the environmental sensor on the Smart DewHeater Controller 2X work without an extra probe? The ambient temperature and humidity sensors are integrated into the controller's "Bridge." This design element physically isolates the sensors from the main aluminum body, preventing heat generated by the electronics from affecting their readings. This allows for highly accurate ambient measurements without the need for additional cabled probes. What do the LED lights on the Smart DewHeater Controller 2X indicate? The LEDs provide a quick visual status of the controller's operations. They show which heater ports are active and their relative power output. They also serve as a warning system, alerting you to conditions like low input voltage from your battery or if the current draw exceeds the capacity of your power source. Connectivity & Ports Dew Heater Ports 2x RCA jacks Thermistor Ports 2x 2.5mm Audio jacks 12V DC Power Output 1x Barrel connector (5.5mm/2.1mm), 7A max AUX Ports 2x PC Port USB 2.0 Type B Power Power Input 12V DC, Threaded barrel connector (5.5mm/2.1mm) Max Input Current 10A Included Power Cable 10 ft. long, cigarette lighter plug, 10A fuse protected Electronic Protections Fuse protected, reverse polarity protected, low voltage cut-off Sensors & Construction Environmental Sensor Integrated temperature and humidity Enclosure Aluminum with integrated fan Mounting Clamp Fits CG-5 and CGE dovetails Physical Dimensions 139.7mm x 114.3mm x 82.55mm (5.5" x 4.5" x 3.25") Weight 1.2 lbs (544.3 g) Warranty 2-Year Warranty Smart DewHeater and Controller 2x × 1 Tripod Leg Strap × 1 Controller Power Cable (10 ft) × 1 Power Cable for External 12V DC Device × 1 AUX Cable × 1 Thermistor Extension Cable × 1 Download Manual Download Software Celestron 2-Year Limited Warranty
