Lightweight 225 mm motorized flat panel with built-in micro-encoder, dew heater, USB2.0 control via ASIAIR, StellaVita, ASCOM or INDI. Perfect for automated flats even at –25 °C.
The WandererAstro WandererCover V4-EC 225 mm is a professional motorized flat panel for astrophotography. Compatible with ASIAIR, StellaVita, ASCOM and INDI, it integrates a micro-encoder providing ±0.25° repeatability. The upgraded motor handles over 3,000 open/close cycles and operates reliably down to –25 °C.
Built-in heating keeps the panel dry or rapidly removes dew with 255-level PWM dimming, eliminating banding for exposures ≥0.1 s. Exclusive cable management protects power leads, and soft pads prevent telescope scratches. Package includes 1 m USB2.0 cable, 1 m DC5521 male-male power cable and four nylon cable ties for universal installation.
Luminous diameter: 225 mm
Outer diameter: 250 mm
Weight: 553 g
Heating power: 15 W
USB: 2.0 Type-B
Power supply: 12 V 2 A DC 5.5×2.1 mm
Repeat positioning accuracy: ±0.25°
Dimming: 255 levels, doubled PWM frequency
Tested life: >3,000 cycles
Operating temperature: down to –25 °C
Included accessories: 1 m USB2.0 cable, 1 m DC5521 male-male power cable, 4 nylon cable ties

Exclusive cable management solution prevents damage to power cables during operation; Soft cushioning pads protect your telescope from scratches; Includes cable ties for universal installation

Built-in micro-encoder provides real-time, accurate feedback on cover position, allowing users to remotely check the angle status without opening the monitoring camera. Repeat positioning accuracy of up to ±0.25 degrees ensures precise open/close operations every time. Customizable opening/closing at any angle.

Features a brand-new motor with over 50% increased load capacity, ensuring durability and preventing gear box failure. Designed to withstand low temperatures, it operates reliably even in winter conditions as low as -20°C! After testing, the life of WandererCover V4-EC exceeds 3,000 opening and closing cycles.


Thanks to the encoder, V4-EC provides automatic detection of the open and closed position*. If your device is not around and manual setting is not possible, WandererCover can automatically detect obstacles and set the open and closed position.
*It is always recommended to set the open and closed angles manually! Use automatic detection as the last option only when the flat panel angle cannot be observed. It is normal for the motorbox to heat up during automatic detection. The angle detected is affected by many factors and success is not guaranteed. Do not try multiple times if unsuccessful.

The new ASCOM driver makes use easier. It also supports automatic or manual port selection and connection of up to 6 devices simultaneously.

The new dimming controller boosts PWM dimming frequency by 100%, effectively reducing the occurrence of banding and ensuring no banding during exposures of 0.1 seconds or longer. 255-level dimming meets the flat-field shooting needs, from color cameras to narrowband imaging. At maximum brightness, capturing 3nm narrowband only takes around 1 second!

Low temperature resistant design, able to work normally in environment as low as -25℃ (-13℉).

With the latest firmware, it supports control via ZWO ASIAIR Plus, ToupTek StellaVita, and any device capable of controlling the DC switch. Please refer to user manual to check it out!


