Optoma ZK551 4K UHD Laser Projector
- In UK stock, ships from the UK
- UK manufacturer warranty
- UK-based engineers
- No import duty or customs charges
- GBP pricing, UK VAT invoices
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Description
The ZK551 is a compact 4K UHD laser projector built around Optoma's DuraCore light engine, offering 5,100 ISO lumens and a 3,000,000:1 contrast ratio for meeting rooms, classrooms and training spaces. A 1.4-2.24:1 manual zoom lens gives some flexibility over throw distance without needing a short throw model. What sets the ZK551 apart within the range is built-in Miracast wireless screen sharing, letting presenters cast from a compatible laptop or device without extra hardware or cabling, which speeds up room turnaround in shared meeting spaces. The IP6X-rated sealed optical engine and 30,000-hour laser source keep maintenance needs to a minimum, with instant power on and off. Quiet operation, down to 30dB, a built-in speaker and support for RS232, Crestron RoomView and Extron IPLink control make the ZK551 straightforward to integrate into managed meeting room and classroom AV systems that need reliable 4K UHD image quality with minimal day-to-day upkeep.
Key features
Cast content from compatible devices without additional hardware.
Bright, detailed image for meeting rooms and classrooms.
Maintenance-free operation with instant on/off.
Low fan noise keeps the projector unobtrusive in presentation spaces.
Technical specifications
Throw distance guide
With its 1.4–2.24:1 throw ratio, here's how far the projector needs to sit from the screen for common 16:9 image sizes. Try our throw distance calculator for your exact room.
Manufacturer lens-distance limit: 1.0 m–9.3 m. The dotted lines show the usable zoom positions for this picture size.
| Image size | Image dimensions | Lens distance range |
|---|---|---|
| 60" | 1.33 m × 0.75 m | 1.9 m – 3.0 m |
| 80" | 1.77 m × 1.00 m | 2.5 m – 4.0 m |
| 100" | 2.21 m × 1.25 m | 3.1 m – 5.0 m |
| 120" | 2.66 m × 1.49 m | 3.7 m – 6.0 m |
| 150" | 3.32 m × 1.87 m | 4.6 m – 7.4 m |
Planning from a real wall? Use the projector room planner to upload a photo, preview the image to scale and find projectors that fit within your maximum available space.
Distances are lens-to-screen, calculated from the manufacturer's stated throw ratio; allow for lens shift and mounting hardware. Always confirm against the manufacturer's installation guide before fixing mounts.
See it on your wall, to scale
Choose a picture size, then upload a wall photo—or scan the QR code and take it on your phone. We'll show the projected picture at its real size.
Documents
Delivery & returns
Estimated delivery 29 Aug - 2 Sept. UK mainland delivery only — some large or made-to-order items may carry longer lead times.
Unused items in original packaging can be returned within 14 days of delivery. Faulty items are covered under manufacturer warranty.
Bought in the UK, backed in the UK
This item is in UK stock and ships to you from within the UK, so the order never crosses a customs border on its way to you.
The manufacturer warranty is honoured here in the UK. If something fails, you deal with us — not with an overseas seller in another time zone.
Our own UK-based engineers install, commission and support what we sell, and can attend site when a system needs hands on it.
Delivered within the UK mainland, so there is no import duty, customs charge or courier handling fee waiting for you on delivery.
Prices are in pounds sterling with proper UK VAT invoices, and purchase orders are accepted from approved education accounts — no currency conversion and no surprises at the door.
Payment & security
Pay securely by card. Education customers can apply for a 30-day purchase order account.
Schools, colleges, sixth forms, universities and multi-academy trusts can order on invoice — no card payment required. Purchase orders and credit terms are for education customers only.
All transactions are processed over an encrypted, secure checkout.
Need help specifying this for your space?
Ask Andrew — he knows the full catalogue and can advise on installation, mounting and compatible AV systems.