Controls up to 4 dew heater channels with intelligent power optimization Provides centralized power with 3x 12V DC, 1x 3V-12V variable DC, and 3x powered USB 3.2 ports Accepts high-current 20A max input via an XT60 jack for demanding setups Integrated environmental sensor provides real-time temperature and humidity data Mounts directly to CG-5 or CGE dovetails or a tripod leg Description FAQ Specifications In the Box Downloads Warranty Celestron Smart DewHeater and Power Controller 4X The Celestron Smart DewHeater and Power Controller 4X is a complete power and dew management solution, providing intelligent control for four dew heaters and distributing power to your entire imaging rig through 10 separate outputs. With two 12V DC inputs, including a high-current XT60 jack rated for a 20A maximum input, this controller can power a mount, camera, and accessories from a single source. An integrated environmental sensor feeds data to a microprocessor, which optimizes power usage in real time to keep your optics clear while conserving battery life, all housed in a 1.4 lbs aluminum enclosure. 4-Channel Intelligent Dew Prevention This controller eliminates guesswork by using data to apply heat precisely where and when it's needed. It features four RCA-jack dew heater ports, each paired with a 2.5mm thermistor port, allowing it to constantly monitor the temperature of your optics. The unit's integrated environmental sensor measures ambient temperature and humidity, letting the processor calculate the exact dew point and deliver just enough power to prevent condensation, significantly extending your field battery life. While the controller is designed to work seamlessly with Celestron's Dew Heater Rings (which have built-in thermistors), it is also fully compatible with third-party heating straps. To enable smart control with other straps, simply connect an optional Celestron Thermistor to the corresponding port. 10 Ports to Power Your Entire Imaging Rig Simplify your cable management by running your entire setup from one hub. The Controller 4X provides a total of 10 outputs to power all your equipment, protected by electronic fuses and low-voltage cut-off circuits. The included 10 ft. power cable connects to the 20A max XT60 input port, ensuring it can handle a fully loaded system. 12V DC Power: Three 5.5mm/2.1mm barrel connector ports supply up to 7A each, perfect for your mount, primary camera, and other standard accessories. Variable DC Power: A dedicated port offers an adjustable 3V-12V output (5A max), ideal for powering devices like DSLR cameras that require less than 12V. Powered USB 3.2 Hub: Three USB 3.2 Type A ports connect your guide camera, focuser, and filter wheel to your PC while supplying up to 2.5A of power to each. Full System Management via CPWI or Hand Control The Smart DewHeater and Power Controller 4X can be used as a standalone device, but its full potential is unlocked when connected to a Celestron ecosystem. Using the included AUX cable, the controller integrates with a NexStar+ or StarSense hand control. For ultimate control, connect it to a PC via the USB 3.2 Type B port to use Celestron's CPWI software. This integration allows you to view real-time data from all sensors, monitor power consumption, and manually adjust dew heater output. You can also remotely switch power on or off for each individual 12V DC and USB port, allowing you to reboot a device without ever touching a cable in the dark. Dovetail Mounting and Thermally Isolated Sensors Built from a rugged aluminum enclosure with an integrated cooling fan, the 1.4 lbs Controller 4X is designed for field use. It mounts securely on either a CG-5 or CGE-style dovetail bar via its built-in clamp, or can be strapped to a tripod leg with the included strap. Its most unique design feature is the "bridge," which arches over the main body. This bridge houses the environmental sensor, thermally isolating it from the heat generated by the controller's electronics to ensure accurate ambient temperature and humidity readings. The bridge also contains dimmable status LEDs that provide at-a-glance warnings for power draw and battery voltage, and serves as a convenient handle for cable management. How many devices can the Smart DewHeater and Power Controller 4X power? The Controller 4X can power up to 10 devices simultaneously. This includes four dew heaters, three 12V DC accessories (like a mount or camera), one variable voltage DC accessory, and three powered USB devices (like a guide camera or focuser). Can I use the Smart DewHeater and Power Controller 4X with my third-party dew straps on an 8" SCT? Yes, the controller is compatible with third-party dew heater straps that use a standard RCA jack. However, to utilize the "smart" dew prevention features, you must also purchase and connect an optional Celestron Thermistor for Smart DewHeater and Controllers for each strap you use. This allows the controller to read the temperature of your optics and optimize power. What is the benefit of the variable 3V-12V DC output on the Controller 4X? The variable output port is designed for accessories that require less than a standard 12V supply. Many DSLR or mirrorless cameras, for example, use batteries around 7.4V. This port allows you to power such devices directly with the correct voltage, eliminating the need for separate power adapters or batteries. How do I connect the Smart DewHeater and Power Controller 4X for software control? You have two main options. You can connect the Controller 4X to your Celestron mount's hand control using one of the three AUX ports and the included AUX cable. Alternatively, for full computer control with CPWI software, you connect the controller directly to your PC using the USB 3.2 Type B port. I have a full imaging setup. Will one PowerTank 17Ah be enough for a full night with the Controller 4X? It depends on conditions. In heavy dew, running multiple dew heaters at high power, plus a mount, camera, and other accessories, will likely exceed the capacity of a single 17Ah battery for an all-night session. For demanding setups, a larger capacity battery source or multiple batteries is recommended to ensure you don't lose power before sunrise. What is the difference between the XT60 and barrel connector power inputs on the Controller 4X? The controller provides two options to match your power source. The standard threaded barrel connector is rated for a 10A maximum input. For more power-hungry setups, the XT60 jack is a high-current input rated for a 20A maximum input, ensuring the controller can handle a full load of heaters and accessories without being starved for power. Dew Heater Ports 4x RCA jacks Thermistor Ports 4x 2.5mm Audio jacks 12V DC Power Outputs 3x (5.5mm/2.1mm barrel jacks, 7A max each) Variable DC Power Output 1x (3V-12V, 5.5mm/2.1mm barrel jack, 5A max) USB Ports 3x USB 3.2 Type A (2.5A output each) AUX Ports 3x PC Port 1x USB 3.2 Type B 12V DC Power Input 1x Threaded barrel jack (5.5mm/2.1mm, 10A max) High Current Power Input 1x XT60 jack (20A max) Environmental Sensor Integrated temperature and humidity Enclosure Aluminum with integrated fan Mounting Clamp Fits CG-5 and CGE dovetails Electronic Protections Fuse protected, reverse polarity, low voltage cut-off Weight 1.4 lbs (635.02 g) Dimensions 177.8mm x 114.3mm x 82.55mm (7" x 4.5" x 3.25") Included Power Cable 10 ft. long, XT60 to cigarette lighter plug, 20A fuse Smart DewHeater and Power Controller 4X × 1 Tripod leg strap × 1 Controller power cable (XT60 to Cigarette Lighter) × 1 Power cable for external 12V DC device × 1 AUX cable for connecting to Celestron mounts × 1 Thermistor extension cable × 1 Download Celestron CPWI Software Celestron 2-Year Limited Warranty
