Optoma ZK431ST projector
3,900 ANSI lumen 4K UHD (3840×2160) laser projector with 300,000:1 contrast and a short throw lens (0.496:1).
4K UHD3,900 lmShort throwLaser
In stock
€1,814
Incl. 21% VAT · €1,498.94 excl. VAT for EU businesses
Large quantities
1–4 pcs.price shown
5–9 pcs.volume price on request
10+ pcs. or projectcustom quote
- Free delivery in Bucharest, courier across Romania 30 lei; EU shipping confirmed in the proforma
- Company invoice, proforma by email; EU businesses with a valid VAT number are invoiced without VAT
- 14-day returns for private customers
Price in EUR at the National Bank of Romania rate of 30 October 2026 (1 EUR = 5.3426 lei). Invoices are issued in lei: 9,690 lei incl. VAT.
Technical specifications
| Technology | DLP |
|---|---|
| Light source | Laser |
| Native resolution | 4K UHD (3840×2160) |
| Brightness | 3,900 ANSI lumens |
| Contrast | 300.000:1 |
| Throw ratio | 0,496:1 |
| Zoom | Fixed (no optical zoom) |
| Inputs | 1 × HDMI 2.0, 1 × HDMI 2.0 (eARC) |
| Outputs | 1 × 3.5 mm audio jack, 2 × USB-A power 1.5 A |
| Control | 1 × RS232, 1 × RJ45, 1 × 12 V trigger, 1 × 3D sync |
| Weight | 2.9 kg |
| Keystone correction | horizontal ±15°, vertical ±15° |
| Light source lifetime | 30,000 hours (Eco mode) |
| Throw distance | 0,33 – 3,3 m |
| Noise level | 29 dB |
| Speaker | 1 × 15 W |
| Input lag | from 8.6 ms |
| Max. power consumption | 178 W |
| Dimensions (W × D × H) | 216 × 274 × 108.5 mm |
| 24/7 operation | Yes |
| 360° mounting | Yes |
| Light source warranty | 5 years / 12,000 hours |
| Warranty | 5 years |
Description
3,900 ANSI lumen 4K UHD (3840×2160) laser projector with 300,000:1 contrast and a short throw lens (0.496:1).
Suited to classrooms, above the whiteboard, and to small meeting rooms. Projects a large image from a short distance (0.496:1 throw ratio), with no shadows on the screen. Highlights: 360° mounting and portrait projection, remote management via Optoma Management Suite, control from the Optoma Smart app. The light source has a 5-year or 12,000-hour warranty.
Genuine Optoma product with a 5-year warranty. Kiltex helps you choose and, on request, takes care of delivery, mounting and configuration.
Frequently asked questions about the Optoma ZK431ST
How much does the Optoma ZK431ST cost?
The Optoma ZK431ST costs €1,814 including Romanian VAT (9,690 lei), at the National Bank of Romania rate of 30 October 2026. EU businesses with a valid VAT number pay €1,499 without VAT. For 5 units or more we offer volume pricing.
Is the ZK431ST in stock?
The Optoma ZK431ST is in stock. Delivery is free in Bucharest and costs 30 lei by courier elsewhere in Romania; for other EU countries we confirm shipping in the proforma.
What warranty does the Optoma ZK431ST have?
The Optoma ZK431ST is a new, genuine Optoma product with a 5 years warranty, supplied with an invoice and warranty certificate.
Can my company buy the ZK431ST without VAT?
Yes, if your company is registered for VAT in an EU country other than Romania. Choose “EU company” at checkout and enter your VAT number; after a VIES check we invoice without VAT (reverse charge). Romanian companies receive a standard VAT invoice.
Can you install and configure the Optoma ZK431ST?
Yes. Kiltex handles installation, configuration and after-sales support for Optoma projector equipment in Bucharest, Ilfov and, for projects, across Romania.
Advice and installation
Not sure it's the right fit, or want us to install it?
Tell us what you need and we'll recommend the right setup. We also handle mounting, configuration and support after installation.
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