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Electronic Accessories

A modern imaging rig is a small outdoor computer network running in the cold. Hubs, cables, power distribution, WiFi modules and controllers determine whether it runs unattended for eight hours or drops a connection at 2 a.m. David Astro carries electronic accessories in Canada, shipping from Canadian stock.

Most overnight failures we help diagnose are power or cable failures rather than software ones. Tell us what your rig is doing and we will help you find the actual cause.

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CA$46.00 - CA$46.00
CA$46.00
CA$46.00 - CA$46.00
CA$46.00

APM Illuminator for Crosshair Eyepieces

APM-FIND-ILL
Only 1 left!

Illuminator for reticle eyepiecesModelilluminated for Reticle Eyepieces

CA$46.00 - CA$46.00
CA$46.00
CA$46.00 - CA$46.00
CA$46.00
CA$89.00 - CA$139.00
CA$89.00 - CA$139.00
CA$89.00 - CA$139.00
CA$89.00

Baader Network Cable (red) w/ ColdTemp-specified CAT-7 Wire (CAT6a plug) - 3m to 30m

Options available

ColdTemp-specified CAT-7 Wire Durable CAT6a RJ45 Plug High-visibility Red Jacket Available in 3m, 5m, 15m, and 30m lengths Description FAQ Spec...

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CA$89.00 - CA$139.00
CA$89.00 - CA$139.00
CA$89.00 - CA$139.00
CA$89.00
CA$42.00 - CA$42.00
CA$42.00
CA$42.00 - CA$42.00
CA$42.00

Celestron AUX Port Splitter

CEL-93919

Adds a second auxiliary port to your Celestron mount Connect two accessories at once, like a hand controller and StarSense AutoAlign Plugs directl...

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CA$42.00 - CA$42.00
CA$42.00
CA$42.00 - CA$42.00
CA$42.00
CA$200.00 - CA$200.00
CA$200.00
CA$200.00 - CA$200.00
CA$200.00

Celestron NexStar+ Hand Control USB, AZ

CEL-93981
1 in stock

Direct GoTo upgrade or replacement for Celestron alt-azimuth mounts Access a vast database of celestial objects across 4 major catalogs Features C...

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CA$200.00 - CA$200.00
CA$200.00
CA$200.00 - CA$200.00
CA$200.00
CA$200.00 - CA$200.00
CA$200.00
CA$200.00 - CA$200.00
CA$200.00

Celestron NexStar+ Hand Control USB, EQ

CEL-93982

Direct replacement for Celestron equatorial GoTo mounts Intuitive menu system for object navigation Features Celestron's All-Star Polar Alignment ...

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CA$200.00 - CA$200.00
CA$200.00
CA$200.00 - CA$200.00
CA$200.00
CA$200.00 - CA$200.00
CA$200.00
CA$200.00 - CA$200.00
CA$200.00

Celestron SkyPortal WiFi Module

CEL-93973

Control your Celestron computerized telescope wirelessly Connects to your mount's AUX port for power and data Dual-band 2.4 GHz and 5 GHz WiFi ope...

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CA$200.00 - CA$200.00
CA$200.00
CA$200.00 - CA$200.00
CA$200.00
CA$271.00 - CA$271.00
CA$271.00
CA$271.00 - CA$271.00
CA$271.00

Celestron SkySync GPS Accessory

CEL-93969

Automatically provides time, date, and location data from GPS satellites Connects to your Celestron telescope's hand control or AUX port Simplifie...

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CA$271.00 - CA$271.00
CA$271.00
CA$271.00 - CA$271.00
CA$271.00
CA$666.00 - CA$666.00
CA$666.00
CA$666.00 - CA$666.00
CA$666.00

Celestron StarSense AutoAlign

CEL-94005

Replaces manual alignment with automated plate-solving 1.2 Megapixel CMOS sensor with 3.75µm pixels Fast f/2, 20mm 2-element objective lens Includ...

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CA$666.00 - CA$666.00
CA$666.00
CA$666.00 - CA$666.00
CA$666.00
CA$916.00 - CA$916.00
CA$916.00
CA$916.00 - CA$916.00
CA$916.00

Celestron StarSense AutoAlign for Sky-Watcher Mounts

CEL-94006

Automatically aligns your Sky-Watcher mount in minutes Replaces manual star alignment with advanced plate-solving technology Compatible with HEQ5,...

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CA$916.00 - CA$916.00
CA$916.00
CA$916.00 - CA$916.00
CA$916.00
CA$200.00 - CA$200.00
CA$200.00
CA$200.00 - CA$200.00
CA$200.00

Celestron StarSense Hand Control USB

CEL-93999

Unlocks StarSense AutoAlign accessory functionality 40,000-object database with detailed information Direct PC connection via Mini-USB for firmwar...

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CA$200.00 - CA$200.00
CA$200.00
CA$200.00 - CA$200.00
CA$200.00
CA$32.00 - CA$32.00
CA$32.00
CA$32.00 - CA$32.00
CA$32.00

Daystar Serial Cable

DAY-SERQ15

Enables PC control of Daystar Quantum series filters Required for use with Quantum Control software Allows for precise, repeatable digital tuning ...

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CA$32.00 - CA$32.00
CA$32.00
CA$32.00 - CA$32.00
CA$32.00
CA$45.00 - CA$45.00
CA$45.00
CA$45.00 - CA$45.00
CA$45.00

Daystar USB Serial Cable - 2m

DAY-USBH15

Official Daystar Filters Accessory Connects Quantum Filters to a PC via USB Enables Full Functionality of Quantum Control Software USB Type-A to D...

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CA$45.00 - CA$45.00
CA$45.00
CA$45.00 - CA$45.00
CA$45.00
iOptron GPS Module for CEM26/GEM28/CEM40/GEM45 Mounts
CA$175.00 - CA$175.00
CA$175.00
CA$175.00 - CA$175.00
CA$175.00

iOptron GPS Module for CEM26/GEM28/CEM40/GEM45 Mounts

IOP-8438

Automatically inputs time, date, and location Eliminates manual coordinate entry for faster setup Increases the accuracy of initial GoTo alignment...

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CA$175.00 - CA$175.00
CA$175.00
CA$175.00 - CA$175.00
CA$175.00
iOptron iMate Astronomy Control Box
CA$307.00 - CA$307.00
CA$307.00
CA$307.00 - CA$307.00
CA$307.00

iOptron iMate Astronomy Control Box

IOP-8480

Integrated astronomy device control hub Runs a curated version of Kstars/Ekos and INDI Powers cameras, focusers, and accessories Generates a stron...

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CA$307.00 - CA$307.00
CA$307.00
CA$307.00 - CA$307.00
CA$307.00
CA$35.00 - CA$35.00
CA$35.00
CA$35.00 - CA$35.00
CA$35.00

iOptron RS232-RJ9 Serial Cable

IOP-8412

Connects PC RS232 Serial Port to an iOptron Mount Enables Direct Mount Control via ASCOM Required for Mount and Hand Controller Firmware Updates S...

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CA$35.00 - CA$35.00
CA$35.00
CA$35.00 - CA$35.00
CA$35.00
CA$39.00 - CA$39.00
CA$39.00
CA$39.00 - CA$39.00
CA$39.00

iOptron USB to RS232 converter

IOP-8435
2 in stock

Connects iOptron mounts with RS232 ports to modern computers via USB Enables firmware updates for hand controllers and main boards Allows for dire...

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CA$39.00 - CA$39.00
CA$39.00
CA$39.00 - CA$39.00
CA$39.00
CA$1,393.00 - CA$1,393.00
CA$1,393.00
CA$1,393.00 - CA$1,393.00
CA$1,393.00

Lunt PC-USB Pressure Tuner Controller

LSS-PCUSB

Automates pressure tuning for any Lunt PT solar telescope Connects and is controlled via a standard USB connection Internal microprocessor compens...

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CA$1,393.00 - CA$1,393.00
CA$1,393.00
CA$1,393.00 - CA$1,393.00
CA$1,393.00
CA$58.00 - CA$64.00
CA$58.00 - CA$64.00
CA$58.00 - CA$64.00
CA$58.00

Pegasus EQDIR USB Stick for EQMOD

Options available
12 variants in stock

Our new compact EQDir USB Stick Adapter for EQMOD allows direct connection of Skywatcher HEQ5 Syntrek/PRO, NEQ6 Syntrek/PRO, AZ EQ6-GT and EQ8 moun...

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CA$58.00 - CA$64.00
CA$58.00 - CA$64.00
CA$58.00 - CA$64.00
CA$58.00
CA$14.00 - CA$14.00
CA$14.00
CA$14.00 - CA$14.00
CA$14.00

Pegasus Pack of 2x USB2.0 Type-A male to USB mini-B 5pin Male Angled Cables- 0.5m

PEG-USB2MINI-05M
2 in stock

Connection: USB 2.0–A male USB mini-B 5pin male angled AWG 28 data line / AWG 24 power line Nickel-plated Cable length: ca...

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CA$14.00 - CA$14.00
CA$14.00
CA$14.00 - CA$14.00
CA$14.00
CA$16.00 - CA$16.00
CA$16.00
CA$16.00 - CA$16.00
CA$16.00

Pegasus Pack of 2x USB2.0 Type-A male to USB mini-B 5pin Male Angled Cables- 1m

PEG-USB2MINI-1M

Pack of 2 USB 2.0 Cables USB-A Male to Angled USB Mini-B 5-pin Male 1.0 meter (3.3 ft) Cable Length Angled Connector for Strain Relief Ideal for A...

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CA$16.00 - CA$16.00
CA$16.00
CA$16.00 - CA$16.00
CA$16.00
CA$14.00 - CA$14.00
CA$14.00
CA$14.00 - CA$14.00
CA$14.00

Pegasus Pack of 2x USB2.0 Type-A male to USB2.0 Type-2 Male Angled Cables- 0.5m

PEG-USB2B-05M

Pack of two USB 2.0 cables USB Type-A Male to 90° Angled USB Type-B Male 50 cm (0.5 m) length for minimal cable drag Up to 480Mb/s data transfer r...

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CA$14.00 - CA$14.00
CA$14.00
CA$14.00 - CA$14.00
CA$14.00
CA$16.00 - CA$16.00
CA$16.00
CA$16.00 - CA$16.00
CA$16.00

Pegasus Pack of 2x USB2.0 Type-A male to USB2.0 Type-B Male Angled Cables- 1m

PEG-USB2B-1M
5 in stock

Pack of 2 USB 2.0 Cables USB-A Male to 90° Angled USB-B Male 1 meter (3.3 ft) Length Up to 480 Mb/s Data Transfer Rate 4.5 mm Cable Diameter De...

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CA$16.00 - CA$16.00
CA$16.00
CA$16.00 - CA$16.00
CA$16.00
CA$20.00 - CA$20.00
CA$20.00
CA$20.00 - CA$20.00
CA$20.00

Pegasus Pack of 2x USB3.0 Type-A male to USB3.0 Type-B Male Cables- 0.5m

PEG-USB3B-05M
5 in stock

Pack of 2 USB 3.0 Type-A to Type-B Cables Data Transfer Rate: Up to 5 Gbit/s Length: 50 cm (0.5 m) Conductor Gauge: 28 AWG Data / 24 AWG Power Ide...

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CA$20.00 - CA$20.00
CA$20.00
CA$20.00 - CA$20.00
CA$20.00
CA$27.00 - CA$27.00
CA$27.00
CA$27.00 - CA$27.00
CA$27.00

Pegasus USB3.0 Type-A male to USB3.0 Type-B Male Premium Cable- 1m

PEG-USB3B-1PREM
1 in stock

USB 3.0 Type-A to Type-B Connection 5Gb/s Maximum Data Transfer Rate 1 meter (3.3 ft) Cable Length Gold-Plated Connectors with Metal Housings Doub...

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CA$27.00 - CA$27.00
CA$27.00
CA$27.00 - CA$27.00
CA$27.00

Electronics That Keep a Rig Running

Reliability comes from short cable runs, adequate current headroom, and connectors that survive repeated cold cycling.

  • Powered USB hubs: Mount-top hubs that shorten cable runs to cameras and focusers, since long unpowered USB runs are a leading cause of intermittent disconnections.
  • Power distribution boxes: Convert one supply into regulated outputs for mount, camera, dew heaters and focuser, with individual fusing.
  • WiFi and network modules: Wireless control of mounts and accessories, removing a data cable from the moving part of the rig.
  • Cables: Cold-flexible cabling in appropriate gauge, since standard PVC cable stiffens dramatically below minus 20 and can drag the mount.
  • Controllers and interface boxes: Devices that bridge focusers, rotators, flat panels and sensors into a single control environment.
  • Cable management: Clips, wraps and routing hardware that prevent the snag which ends a session and can damage a focuser.

Why Choose David Astro for Electronic Accessories

We troubleshoot these rigs regularly, so the recommendations come from failure patterns rather than specifications.

  • Cold-weather cabling advice: We recommend cable types that stay flexible below minus 20, because stiff cable pulls on the mount and shows up as guiding error.
  • Current headroom calculated: We total your loads and specify distribution with margin, since running near capacity causes the intermittent faults that are hardest to diagnose.
  • USB run length considered: We keep camera connections short with a mount-top hub, which resolves most unexplained disconnection problems.
  • Authorized dealer: Genuine products with manufacturer warranty, in Canadian inventory and shipped domestically.
  • Ships from Canada: No duties or brokerage fees for Canadian buyers.

Electronic Accessories in Canada — Frequently Asked Questions

Why does my camera keep disconnecting?
Usually a long USB run, an unpowered hub, or a marginal power supply. Moving to a powered hub on the mount with short cables to the camera resolves the majority of these cases.
Do I need a power distribution box?
Once you are running mount, camera, focuser and dew heaters, yes. Individual fusing and regulated outputs prevent one fault taking down the whole rig, and it removes a tangle of separate supplies.
What cable should I use in winter?
Silicone or otherwise cold-rated cable. Standard PVC stiffens below about minus 20 and can exert enough force on the mount to affect guiding, quite apart from the risk of snagging.
Is WiFi control reliable outdoors?
Generally yes at short range, and it removes a cable from the moving parts. For unattended all-night operation, many imagers still prefer a wired connection to the control computer for the critical link.

Rig dropping out overnight?

Describe the failure and we will help find the cause. Canadian stock, cold-rated components, expert support.