Professional 190 mm lightweight motorized flat panel, ASIAIR/StellaVita, ASCOM and INDI compatible. Built-in heater, automatic position detection, precise control, operates down to –25 °C.
The WandererCover V4-EC 190 mm is a professional motorized flat panel designed for flat-field imaging and telescope protection. Its lightweight yet robust design features a next-generation motor with over 50 % increased load capacity and a tested lifetime exceeding 3,000 open/close cycles.
The integrated micro-encoder provides real-time feedback with ±0.25° repeat accuracy, enabling remote monitoring and customizable open/close angles.
Built-in heating elements keep the panel dry all night and quickly remove dew in the morning. The heater can be controlled in NINA advanced sequence via the “Device Actions and Commands” plugin.
A high-frequency 255-level PWM dimmer eliminates banding even at 0.1 s exposures and allows fast flats for 3 nm narrowband in about 1 second.
Compatible with ZWO ASIAIR Plus, ToupTek StellaVita, ASCOM and INDI, the V4-EC operates reliably down to –25 °C.
Package includes USB 2.0 cable, DC5521 male-male power cable, and four nylon ties.
Luminous diameter: 190 mm
Outer diameter: 215 mm
Weight: 448 g
Heating power: 9 W
Power supply: 12 V 2 A DC5.5×2.1 mm
USB interface: Type-B 2.0
Position accuracy: ±0.25°
Tested lifetime: > 3,000 cycles
Operating temperature: down to –25 °C
Included accessories: 1 m USB 2.0 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!


