Optoma ZK431ST 4K Golf Simulator Projector – 3900 Lumens Short Throw Laser | UK

Optoma ZK431ST 4K Golf Simulator Projector - 3900 Lumens Short Throw Laser | UK
Optoma ZK431ST 4K Golf Simulator Projector - 3900 Lumens Short Throw Laser | UK - Image 2
Optoma ZK431ST 4K Golf Simulator Projector - 3900 Lumens Short Throw Laser | UK - Image 3
Optoma ZK431ST 4K Golf Simulator Projector - 3900 Lumens Short Throw Laser | UK - Image 4
Optoma ZK431ST 4K Golf Simulator Projector - 3900 Lumens Short Throw Laser | UK - Image 5
Optoma ZK431ST 4K Golf Simulator Projector - 3900 Lumens Short Throw Laser | UK - Image 6
Optoma ZK431ST 4K Golf Simulator Projector - 3900 Lumens Short Throw Laser | UK - Image 7
Optoma ZK431ST 4K Golf Simulator Projector - 3900 Lumens Short Throw Laser | UK - Image 8
Optoma ZK431ST 4K Golf Simulator Projector - 3900 Lumens Short Throw Laser | UK - Image 9
Optoma ZK431ST 4K Golf Simulator Projector - 3900 Lumens Short Throw Laser | UK - Image 10
Optoma ZK431ST 4K Golf Simulator Projector - 3900 Lumens Short Throw Laser | UK - Image 11
Optoma ZK431ST 4K Golf Simulator Projector - 3900 Lumens Short Throw Laser | UK - Image 12

Optoma ZK431ST 4K Golf Simulator Projector – 3900 Lumens Short Throw Laser | UK

£2,000.00 inc. VAT

In Stock

True 4K UHD. Short Throw. Built for Sim Golf. The Optoma ZK431ST is a 4K UHD short throw projector purpose-built for golf simulators — 3,900 lumens, HDR & HLG, and a 30,000-hour DuraCore laser in Optoma’s most compact chassis yet (up to 34% smaller). Razor-sharp course detail, mounted close to the screen and clear of your swing. The direct upgrade to the ZK430ST.

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Optoma ZK431ST 4K UHD Short Throw Laser Golf Simulator Projector

The Optoma ZK431ST is one of the best short throw projectors for a golf simulator we’ve tested — a true 4K UHD laser projector that throws a huge, razor-sharp image from just a short distance in front of your screen. With 3,900 lumens of brightness, HDR & HLG support and a DuraCore laser light source rated for 30,000 hours, every fairway, bunker and green renders with stunning, lifelike detail. It’s the direct upgrade to the popular ZK430ST, packed into a chassis up to 34% smaller.

True 4K Detail for Your Simulator

Native 4K UHD resolution (3840 x 2160) puts four times the detail of a standard 1080p projector onto your impact screen. Course textures, grain, distance markers and ball flight all read cleanly, giving you the immersive, true-to-life picture that serious sim golfers are after. A 300,000:1 contrast ratio and 1.07 billion displayable colours keep shadows deep and greens natural, while HDR and HLG support add extra punch and realism to compatible content.

Short Throw, Big Picture

The 0.496:1 short throw lens fills a wide simulator screen from a short distance — projecting images up to 300″ diagonal from as little as 0.4m to 3.3m away. Mounting close to or above the screen means the projector sits out of your swing path, eliminates shadows over the ball, and frees up valuable floor space in a compact UK golf room. With 360-degree and portrait projection plus ±15° digital keystone correction, installation is flexible enough for almost any setup.

Laser Reliability, Zero Maintenance

DuraCore laser technology delivers 30,000 hours of maintenance-free operation — that’s years of regular use with no lamps to replace and no drop-off in brightness. The laser fires up to full brightness almost instantly, supports 24/7 operation, and is sealed to an IP6X dust rating for long-term reliability in a busy simulator environment.

Key Features

  • True 4K UHD resolution (3840 x 2160) for ultra-sharp course visuals
  • Bright 3,900 lumens — performs in rooms with some ambient light
  • DuraCore laser light source — 30,000 hours, maintenance-free
  • 0.496:1 short throw lens — big image, minimal distance, no shadows
  • HDR & HLG support for enhanced contrast and realism
  • Up to 34% more compact than previous Optoma models
  • 360-degree and portrait projection with ±15° keystone
  • 15W built-in speaker and 2x HDMI 2.0 (1x eARC) connectivity
  • Optoma Management Suite (OMSC) & Smart App for remote control

Why Choose TEKDEN?

UK Golf Simulator Specialists

We’re not a generic retailer. TEKDEN focuses exclusively on golf simulation technology, so every product is selected by people who understand the game.

Authorised Optoma Dealer

Every projector we sell is genuine UK stock backed by full Optoma manufacturer warranty — never grey-market imports.

Expert Setup Advice

Got questions about throw distance or mounting? Our team are golfers who use simulators daily and give real advice, not scripted responses.

Fast UK Delivery

Shipped from UK distribution with free mainland delivery — no waiting weeks for imports or dealing with overseas returns.

Technical Specifications

Resolution True 4K UHD (3840 x 2160)
Brightness 3,900 Lumens
Contrast Ratio 300,000:1
Display Technology Single-chip DLP
Light Source DuraCore Laser — 30,000 hours
Throw Ratio 0.496:1 (Short Throw)
Projection Distance 0.4m – 3.3m
Image Size 36″ – 300″ diagonal
HDR Support HDR10 & HLG
Connectivity 2x HDMI 2.0 (1x eARC), RS232, RJ45, 12V trigger, 2x USB-A power, 3.5mm audio out
Built-in Speaker 15W
Dimensions (W x D x H) 274 x 216 x 114 mm
Weight 2.9kg (net)

Frequently Asked Questions

How does the ZK431ST compare to the older ZK430ST?
The ZK431ST is the direct replacement for the ZK430ST. It keeps the same true 4K UHD resolution and reliable DuraCore laser light source, but comes in a significantly more compact chassis (up to 34% smaller) with refined connectivity. If you owned or considered the ZK430ST, the ZK431ST is its modern successor.
Is the ZK431ST a good projector for a golf simulator?
Yes — it’s purpose-suited to sim golf. The short throw lens lets you mount it close to the screen so it stays out of your swing and casts no shadow over the ball, the 4K resolution renders course detail crisply, and 3,900 lumens keeps the picture bright on a large impact screen. It’s one of the strongest 4K short throw options for a home or commercial simulator.
How far from the screen does it need to be?
With a 0.496:1 throw ratio, the ZK431ST projects a large image from a short distance — roughly 0.4m to 3.3m depending on your screen width. For a typical 10–12ft wide simulator screen it mounts well within a compact room, which is exactly why short throw projectors are the standard choice for sim golf.
Do I need to replace the lamp or bulb?
No. The ZK431ST uses a DuraCore laser light source rated for 30,000 hours of maintenance-free operation. There’s no lamp to buy or swap, and brightness stays consistent over its life — even with daily simulator use.
What support and warranty do I get?
As an authorised Optoma dealer, TEKDEN supplies genuine UK stock with full Optoma manufacturer warranty, plus our own expert installation advice and after-sales support tailored to golf simulator setups.

Delivery & Returns

UK Mainland Delivery: FREE — typically dispatched within 1-3 working days

Scottish Highlands & Islands: Additional charges may apply

Returns: 14-day returns policy on unused items in original packaging

Additional information

Weight 4.3 kg
Dimensions 27.4 × 21.6 × 11.4 cm

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Returns & Refunds

We want you to be completely satisfied with your purchase. If you need to return an item, please read the following carefully:

  1. Returns Window: Returns are accepted up to 30 days from the date of delivery.
  2. Condition of Returned Items: To qualify for a straightforward refund, items must be unused, unopened, and in their original packaging. If a product has been opened or used, a refund may be refused at our discretion.
  3. Return Shipping Costs: Customers are responsible for the cost of returning items unless the item is damaged or faulty.
  4. Damaged or Faulty Items: If your product arrives damaged or develops a fault, you must notify us within 14 days of receipt. Please include photos or videos where possible to help us resolve the issue quickly.
  5. Manufacturer Warranty & Repairs: Some items, particularly electronic or technology-based products, are covered by the manufacturer’s warranty. In these cases, the manufacturer may:
    • Request to inspect or repair the item,
    • Offer a replacement,
    • Or resolve the dispute directly with you.
    This process is subject to the terms set by the individual manufacturer and may vary by product.
  6. Right to Refuse Returns: We reserve the right to refuse returns or refunds on items that show signs of misuse, intentional damage, or fall outside our return window.
  7. Refund Processing Time: Once a returned item is received and approved, your refund will be processed as quickly as possible. Refunds typically appear in your account within 3–7 working days, depending on your bank.

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