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A touch probe that needs a firmware update

Aicharynic 3D Touch V3.2 automatic levelling probe for Ender 3, Ender 5 and Geeetech A-series

A 3D Touch V3.2 touch probe from Aicharynic for automatic bed levelling on Ender 3, Ender 5 and Geeetech A10, A20 and A30 3D printers and glass, wood or metal beds, with a stated ± 0.005 mm accuracy deviation, an LED that flashes on a fault, and a firmware update to install.

Probe printed 3D Touch with its cable, an extension lead, two screws, two nuts, connector housings and crimp terminals

Aicharynic 3D Touch V3.2 automatic levelling probe for Ender 3, Ender 5 and Geeetech A-series

A 3D Touch V3.2 touch probe from Aicharynic for automatic bed levelling on Ender 3, Ender 5 and Geeetech A10, A20 and A30 3D printers and glass, wood or metal beds, with a stated ± 0.005 mm accuracy deviation, an LED that flashes on a fault, and a firmware update to install.

Probe type
3D Touch V3.2 touch probe with a light probe pin, title and third bullet; sold as a BL-Touch accessory in the title
Repeatability
Absent from the listing as repeatability — an accuracy deviation of ± 0.005 mm is stated, first bullet
Bed compatibility
Glass, wood, metal and other beds, fifth bullet; Ender 3, 3S, 3 Pro, Ender 5, 5S, 5 Pro and Geeetech A10, A20 and A30 series named, title
Mount
Absent from the listing text — the product photograph shows two screws and two nuts
Wiring and voltage
Simple wiring, fourth bullet; no voltage given; the product photograph shows an extension lead, connector housings and a strip of crimp terminals
Firmware support
Firmware has to be updated from a computer before use, fourth bullet
Amazon reference
B0CYZYHL5C (same reference on 5 Amazon marketplaces)
EAN
0766683251893
  • A stated accuracy deviation: ± 0.005 mm
  • Glass, wood and metal beds named
  • A firmware update is needed before use

Best for: An Ender 3 or Ender 5 owner adding a touch probe who is comfortable flashing printer firmware.

≈ 15 €
Check price on Amazon

Specifications

Probe type
3D Touch V3.2 touch probe with a light probe pin, title and third bullet; sold as a BL-Touch accessory in the title
Repeatability
Absent from the listing as repeatability — an accuracy deviation of ± 0.005 mm is stated, first bullet
Bed compatibility
Glass, wood, metal and other beds, fifth bullet; Ender 3, 3S, 3 Pro, Ender 5, 5S, 5 Pro and Geeetech A10, A20 and A30 series named, title
Mount
Absent from the listing text — the product photograph shows two screws and two nuts
Wiring and voltage
Simple wiring, fourth bullet; no voltage given; the product photograph shows an extension lead, connector housings and a strip of crimp terminals
Firmware support
Firmware has to be updated from a computer before use, fourth bullet
Amazon reference
B0CYZYHL5C (same reference on 5 Amazon marketplaces)
EAN
0766683251893

The Aicharynic 3D Touch V3.2 listing, bullet by bullet

Five bullets: an accuracy deviation of ± 0.005 mm for detecting the nozzle-to-bed distance and the tilt of the print surface; use on most FDM 3D printers; a light probe that measures bed tilt, with an LED that flashes if a fault is found during a self-check or operation; simple wiring and a firmware update from a computer; and use on glass, wood, metal and other beds.

Aicharynic’s ± 0.005 mm

An accuracy deviation, as Aicharynic states it. The figure comes with no conditions and no count of readings. It describes the probe’s claim, not the flatness of a finished first layer, which also depends on the bed, the frame and the mesh the firmware builds.

Aicharynic and firmware

The fourth bullet says a firmware update from a computer is part of installing the probe, so the printer’s board and firmware matter before buying.

Availability

At the last look-up, the German, French, Italian and Spanish Amazon stores were asking 15 € to 17 €.

It is sold in the British Amazon store as well, in its own currency, which the euro figures above leave out on purpose.

The American Amazon store returned no entry, so the buy button there opens a search rather than a missing page.

Every figure here is Keepa’s reading on the date this page was last updated. Stock and prices can change at any time.

Prices quoted in this text were read on 15 September 2026. The live price is at the top of the page.

More bed levelling probes

  • Black strain gauge plate with screw holes and a plugged four-wire cable, below a Creality package header

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    Probe type
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    Repeatability
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    Bed compatibility
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    Wiring and voltage
    Plug and play, fourth bullet; no voltage given; the product photograph shows a twisted cable ending in a plug
    Firmware support
    Absent from the listing
    Amazon reference
    B0FW3P2SGY (same reference on 6 Amazon marketplaces)
    EAN
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    • An official Creality part for the K2 series
    • Plug and play, as the fourth bullet says
    • No accuracy or repeatability figure

    Best for: A Creality K2, K2 Pro or K2 Plus 3D printer owner replacing the levelling sensor with the maker’s part.

    ≈ £9 / 10 €
    Check price on Amazon
  • Threaded cylindrical metal sensor with an orange face and a black cable ending in a three-pin plug

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    Probe type
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    Repeatability
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    Bed compatibility
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    Firmware support
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    Amazon reference
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    EAN
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    Check price on Amazon

Elsewhere on the workbench

  • eSUN PETG Basic black filament spool

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    Diameter tolerance
    Absent from the listing as a figure — “minimal tolerance” and tight diameter tolerance are described, third and fourth bullets
    Net weight
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    Recommended temperatures
    Absent from the listing
    Adhesion guidance
    Absent from the listing — good layer bonding is claimed, third bullet
    Moisture packaging
    Vacuum-sealed bag with desiccant, fifth bullet
    Transparency
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    Spool size
    Absent from the listing
    Amazon reference
    B0DDTFL214 (same reference on 5 Amazon marketplaces)
    EAN
    6922572209060
    • Weather and chemical resistance named, with toughness close to ABS as described
    • Good winding without overlaps, as the fourth bullet states
    • Tolerance described but not given as a figure

    Best for: General PETG parts such as containers and accessories, printed from a known profile.

    ≈ 12 €
    Check price on Amazon
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    Net weight
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    Recommended temperatures
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    Moisture packaging
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    Transparency
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    Spool size
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    Amazon reference
    B0C6G8MDZX (same reference on 5 Amazon marketplaces)
    EAN
    0749684714185
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    Check price on Amazon
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    Diameter tolerance
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    Net weight
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    Recommended temperatures
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    EAN
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All bed levelling probes