ZWO ASIAIR Plus WiFi Camera Controller - 256GB Version (2024) - Used — image 1
ZWO

ZWO ASIAIR Plus WiFi Camera Controller - 256GB Version (2024) - Used

Wi-Fi rig controller · 256 GB (used)

A pocket-sized Wi-Fi computer that runs your whole astrophotography rig from a phone, mount, cameras, focuser and dew heaters, so the laptop stays indoors.

80/ 100
Polaris Score
The default controller for ZWO imaging rigs
Where to buy
Affiliate link — we earn a commission, you pay the same. We rank on fit, not payout.
What problem does this solve?

Astrophotography means juggling a laptop, five cables and three apps in the dark.

A deep-sky rig is really a little network: a mount to track, a main camera to shoot, a guide camera to keep it locked, a focuser, a dew heater, normally all wrangled from a cold laptop trailing USB cables into the damp.

The ASIAIR Plus is a small Wi-Fi computer that plugs into all of it and hands the whole rig to an app on your phone. Polar alignment, plate-solved GoTo, autoguiding and unattended imaging runs happen from the couch, and its four 12 V outputs power the mount, camera and dew heaters so one supply feeds the lot.

You need one if
You need one if you image with ZWO ASI cameras and are tired of running a laptop at the mount.
You can skip it if
Skip it if your main or guide camera is a DSLR, QHY or Player One, the ASIAIR only speaks to ZWO cameras for the parts that matter.
01Will it fit my setup

Compatibility.

What this accessory works with — check the fit before you check the price.

What this accessory works with — check the fit before you check the price.

ZWO ASI camerasZWO EAF focuserZWO EFW filter wheelMost popular GoTo mountsGuiding (ST4 / USB)iOS & Android app12 V dew heaters
Note✕ZWO cameras only, no Canon/Nikon/QHY/Player One for full features✕Needs a supported GoTo mount✕No desktop app, phone or tablet only✕Short Wi-Fi range; stay near the scope
02The numbers

What These Numbers Mean

5 numbers in plain English · full specifications

5 numbers in plain English · full specifications

What it replacesField control
The laptop
Plate solving, autofocus, guiding, mount control and sequencing all run on one small box you drive from a phone. In a portable setup that removes a laptop, its power draw and its glare from the field entirely.
StorageLarge
256 GB internal
Several nights of full-frame subframes before offloading, which matters when each frame is 50 to 100 MB. Transfer over WiFi or remove the drive when you get home.
Power distributionCable tidy
12 V outputs on board
Mount, camera and dew heaters all draw from the unit, so one cable leaves the rig instead of five. Cable snags during a meridian flip are among the most common causes of a ruined unattended night.
CompatibilityCheck first
ZWO cameras only
Imaging and guide cameras must be ZWO. Third-party mounts and focusers are widely supported, but a QHY or Player One camera will not work, which is the single thing to confirm before buying.
Buying usedInspect
Firmware and accessories
Check that it updates to current firmware and that the power cables and mount cable are included, since replacing those individually erodes the saving. Internal storage health is worth confirming too.
Control
RunsMount · main camera · guide camera · focuser · filter wheel
RoutinesPolar align · plate-solve GoTo · autoguide · autorun
Camera supportZWO ASI (cooled & uncooled)
AppASIAIR for iOS / Android
Connectivity & power
WirelessBuilt-in Wi-Fi hotspot + station mode
PortsUSB 3.0 hub · Ethernet · ST4
DC outputs4 × 12 V (mount, camera, dew heaters)
Storage256 GB onboard
Physical
Power input12 V DC
BatteryInternal (safe shutdown / hub)
MountingStraps / dovetail to the scope
ConditionUsed, 2024 unit
03Before you buy

Good to know.

The honest caveats — the things that save you a return, a bad first night, or a second purchase you didn't need.

The honest caveats — the things that save you a return, a bad first night, or a second purchase you didn't need.

It's a ZWO-only club.
The magic, one app, plate-solving, guiding, sequencing, assumes ZWO ASI cameras. Bring a DSLR or a QHY/Player One camera and most of that stops working. Match the box to your cameras, not the other way around.
It replaces the laptop, not the skill.
Polar alignment, framing and guiding are still yours to learn, the ASIAIR just makes each step a tap instead of a terminal command, and keeps you out of the cold.
The four power outputs are half the point.
Those 12 V outs feed the mount, camera and dew heaters from a single supply, so 'one cable to the rig' is real, fewer battery packs, fewer things to trip over in the dark.
Buying used: check the essentials.
Confirm it powers on and makes its Wi-Fi, that the original 12 V supply and USB cables are included, and that it updates to current firmware in the app. 256 GB is plenty for a night of lights.
80/ 100
ZWO ASIAIR Plus WiFi Camera Controller - 256GB Version (2024) - Used
Wi-Fi rig controller · 256 GB (used)

A pocket-sized Wi-Fi computer that runs your whole astrophotography rig from a phone, mount, cameras, focuser and dew heaters, so the laptop stays indoors.