{"product_id":"optoma-zk431st-b-true-4k-uhd-short-throw-laser-projector-4-100-lumens","title":"Optoma ZK431ST-B True 4K UHD Short Throw Laser Projector - 4,100 Lumens","description":"\u003ch1\u003eOptoma ZK431ST-B True 4K UHD Short Throw Laser Projector\u003c\/h1\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003e\n  The Optoma ZK431ST-B is a true 4K UHD short throw laser projector engineered for home and commercial golf simulators, delivering 4,100 lumens of vivid brightness and a remarkably tight 0.496:1 throw ratio that makes installation easy even in space-constrained sim rooms. With 3,840 x 2,160 resolution and a dedicated Golf Sim color mode, every fairway, shadow, and sky looks strikingly realistic - giving players an immersive, true-to-life course experience. Optoma's DuraCore laser technology eliminates lamp replacements entirely, providing consistent brightness and vivid color for up to 30,000 hours of operation, keeping long-term costs low for both home users and commercial facilities.\n\u003c\/p\u003e\n\u003cp\u003e\n  Beyond the golf simulator, the ZK431ST-B is equally at home in business, education, and professional AV environments, supporting 24\/7 operation, 360-degree projection, and compatibility with Optoma Management Suite for centralized device control. The Optoma Smart Control app enables effortless screen alignment with Smart Fit auto-correction and Smart Move obstacle detection, all from a smartphone. Whether you're running GSPro for a realistic round after work or managing a multi-bay commercial golf simulation center, this projector delivers the reliability, image quality, and installation flexibility to do it right.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrue 4K UHD Resolution (3,840 x 2,160):\u003c\/strong\u003e Renders up to 8.3 million pixels for razor-sharp fairways, readable simulator overlays, and detailed course textures on screens from 30\" to 300\".\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e0.496:1 Short Throw Ratio:\u003c\/strong\u003e Tighter than typical short throw designs - mount the projector closer to the screen to reduce golfer shadows and maximize usable hitting area.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4,100 Lumens Brightness:\u003c\/strong\u003e Delivers vibrant, clear images even with ambient light on, making it suitable for lights-on play in home sim rooms and commercial entertainment spaces.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuraCore Laser Light Source - 30,000 Hours:\u003c\/strong\u003e Zero lamp replacements, instant on\/off, reduced power consumption, and consistent brightness across the full lifespan of the projector.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGolf Sim Color Mode:\u003c\/strong\u003e Dedicated picture mode enhances color tuning for brighter blue skies, deeper shadows, and natural green grass tones - built specifically for GSPro and other third-party golf simulation software.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptoma Smart Control App (iOS \u0026amp; Android):\u003c\/strong\u003e Includes Smart Fit auto-alignment using your smartphone camera, Smart Move obstacle detection, keystone correction, and four-corner adjustment for a perfect image fit on any screen.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e300,000:1 Contrast Ratio (2,000,000:1 Dynamic):\u003c\/strong\u003e Exceptional depth between bright and dark areas for realistic, cinematic image quality during play.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Input Lag - 8.6 ms at 1080p\/120Hz:\u003c\/strong\u003e Responsive enough for fast-paced simulation software with minimal display delay at high refresh rates.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Connectivity:\u003c\/strong\u003e 2x HDMI 2.0, VGA, RJ45 LAN control, RS232, 12V trigger, 3D sync out, and dual USB-A ports for versatile integration into any setup.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSustainable, Eco-Friendly Design:\u003c\/strong\u003e Built with over 50% recycled metal and PCR materials, mercury-free laser light source, and 100% recyclable FSC-certified packaging - aligned with Optoma's Green Promise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eShips free! Please email us at service@omahasportsandgames.com for a delivery ETA or to confirm shipping details.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eOptoma ZK431ST-B Laser Projector\u003c\/li\u003e\n  \u003cli\u003eAC power cord\u003c\/li\u003e\n  \u003cli\u003eRemote control\u003c\/li\u003e\n  \u003cli\u003e2 x AAA batteries\u003c\/li\u003e\n  \u003cli\u003eQuick start user manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy You'll Love It\u003c\/h2\u003e\n\u003cp\u003e\n  The ZK431ST-B is purpose-built for golf simulator enthusiasts and commercial operators who refuse to compromise on image quality or reliability. Its ultra-tight throw ratio solves one of the most common frustrations in sim room setup - shadow interference and limited space - while the dedicated Golf Sim color mode ensures every course looks exactly as the software developers intended. Trusted by both home users and commercial golf entertainment facilities, this projector brings the realism of the course indoors with no sacrifices.\n\u003c\/p\u003e\n\u003cp\u003e\n  With 30,000 hours of maintenance-free laser operation and support for 24\/7 use, you're investing in a display solution that will hold up through years of daily rounds without a single lamp swap. The Smart Control app and Optoma Management Suite make it as easy to manage one projector in a basement simulator as it is to oversee an entire commercial venue. Built with sustainability in mind and backed by Optoma's proven engineering, the ZK431ST-B is the projector golf sim enthusiasts have been waiting for.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cdiv class=\"custom-product-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eView Product Specs\u003c\/strong\u003e\u003c\/summary\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eTechnology\u003c\/th\u003e\n\u003ctd\u003eDLP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResolution\u003c\/th\u003e\n\u003ctd\u003e4K UHD (3840 x 2160)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrightness\u003c\/th\u003e\n\u003ctd\u003e4,100 Lumens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eContrast Ratio\u003c\/th\u003e\n\u003ctd\u003e300,000:1 (Dynamic: 2,000,000:1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNative Aspect Ratio\u003c\/th\u003e\n\u003ctd\u003e16:9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Aspect Ratios\u003c\/th\u003e\n\u003ctd\u003e4:3, 16:9, 16:10, Full, Auto, Native\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThrow Ratio\u003c\/th\u003e\n\u003ctd\u003e0.496:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProjection Distance\u003c\/th\u003e\n\u003ctd\u003e12.99\" to 129.92\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eScreen Size\u003c\/th\u003e\n\u003ctd\u003e30\" to 300\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLight Source\u003c\/th\u003e\n\u003ctd\u003eLaser (DuraCore)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLight Source Life\u003c\/th\u003e\n\u003ctd\u003e30,000 hours (Eco mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Length\u003c\/th\u003e\n\u003ctd\u003e7.51 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNative Offset\u003c\/th\u003e\n\u003ctd\u003e114%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKeystone Correction\u003c\/th\u003e\n\u003ctd\u003e+\/- 15 degrees (Horizontal and Vertical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInputs\u003c\/th\u003e\n\u003ctd\u003e2x HDMI 2.0, 1x VGA In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutputs\u003c\/th\u003e\n\u003ctd\u003e2x USB-A 2.0, 1x 3D sync out, 1x Audio 3.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl Connections\u003c\/th\u003e\n\u003ctd\u003e1x RJ45, 1x RS232, 1x 12V trigger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInput Lag\u003c\/th\u003e\n\u003ctd\u003e16.7 ms (4K\/60Hz \u0026amp; 1080p\/60Hz); 8.6 ms (1080p\/120Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpeaker\u003c\/th\u003e\n\u003ctd\u003e1x 15W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNoise Level\u003c\/th\u003e\n\u003ctd\u003e29 dB(A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHorizontal Scan Rate\u003c\/th\u003e\n\u003ctd\u003e15 to 150 KHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVertical Scan Rate\u003c\/th\u003e\n\u003ctd\u003e24 to 240 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUniformity\u003c\/th\u003e\n\u003ctd\u003e75%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e3D Compatibility\u003c\/th\u003e\n\u003ctd\u003eSupports all HDMI 1.4a mandatory 3D formats; up-converts 60Hz to 120Hz or 24Hz to 144Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e24\/7 Operation\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e360-Degree Operation\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLAN Control\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Supply\u003c\/th\u003e\n\u003ctd\u003eAC 100 to 240V, 50 to 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Consumption (Standby)\u003c\/th\u003e\n\u003ctd\u003e0.5 W or less\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Consumption (Eco Mode)\u003c\/th\u003e\n\u003ctd\u003e125 W @ 110VAC \/ 124 W @ 220VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Consumption (Bright Mode)\u003c\/th\u003e\n\u003ctd\u003e178 W @ 110VAC \/ 176 W @ 220VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions (W x D x H)\u003c\/th\u003e\n\u003ctd\u003e216 x 274 x 108.5 mm (10.8 x 8.5 x 4.3 inches) without feet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNet Weight\u003c\/th\u003e\n\u003ctd\u003e2.9 kg \/ 6.3 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGross Weight\u003c\/th\u003e\n\u003ctd\u003e4.3 kg \/ 9.4 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003e0 to 40 degrees C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Operating Altitude\u003c\/th\u003e\n\u003ctd\u003e10,000 ft (for 0 to 30 degrees C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Operating Humidity\u003c\/th\u003e\n\u003ctd\u003e80% RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSecurity\u003c\/th\u003e\n\u003ctd\u003eSecurity bar, Kensington Lock, Password protected interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOSD Languages\u003c\/th\u003e\n\u003ctd\u003e27 languages including English, French, Spanish, German, Japanese, Korean, and more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Software\u003c\/th\u003e\n\u003ctd\u003eOptoma Management Suite, Optoma Smart Control App\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOTA Firmware Updates\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAssembly Required\u003c\/th\u003e\n\u003ctd\u003eNo - plug and play; may require mounting hardware for ceiling installation (sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShipping Method\u003c\/th\u003e\n\u003ctd\u003eShips parcel (standard ground); no freight or pallet required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eManuals \u0026amp; Guides\u003c\/h2\u003e\n\u003cdiv class=\"custom-product-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eView All Documents\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1724\/7681\/files\/zk431st-b.pdf?v=1791501935\" target=\"_blank\" title=\"Datasheet (English US)\"\u003eDatasheet (English US)\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1724\/7681\/files\/CWR2vYgYQ6Xz7DtYMMNWdU01ygunbDtAsX0CNF7G.pdf?v=1791501939\" target=\"_blank\" title=\"Golf Simulator Brochure\"\u003eGolf Simulator Brochure\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1724\/7681\/files\/v5krCVYmbq8MWuWWpHUGDUAxpmpQ6GEArquQh4Tj.pdf?v=1791501943\" target=\"_blank\" title=\"User Manual (English US)\"\u003eUser Manual (English US)\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1724\/7681\/files\/yXYbRlrnv48WKPKFF8Ri5jIxLgLB1tzGjg29cGIj.pdf?v=1791501947\" target=\"_blank\" title=\"Quick Start Guide (English US)\"\u003eQuick Start Guide (English US)\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cdiv class=\"custom-product-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs the ZK431ST-B compatible with popular golf simulation software like GSPro?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eYes. The ZK431ST-B features a dedicated Golf Sim color mode and the Optoma Smart Control app includes purpose-built display tuning for third-party golf simulation software such as GSPro. This ensures you get accurate, visually optimized results right out of the box without manual color calibration.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow close does the projector need to be to the screen?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eThanks to the 0.496:1 throw ratio, the ZK431ST-B can project a large image from a very short distance. The projection distance ranges from 12.99 inches to 129.92 inches, making it ideal for tight sim room installations where space between the projector and impact screen is limited.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the laser light source ever need to be replaced?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eNo. The DuraCore laser light source is rated for up to 30,000 hours of operation in Eco mode with no lamp replacements required. This significantly reduces long-term maintenance costs compared to traditional lamp-based projectors and eliminates downtime for bulb swaps.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan this projector be used in a room with the lights on?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eYes. At 4,100 lumens, the ZK431ST-B is bright enough for lights-on play in typical home sim rooms and commercial entertainment spaces. For the best image quality, a darker room is always ideal, but the projector is well-suited for environments where full light control isn't always possible.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat screen sizes is this projector compatible with?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eThe ZK431ST-B supports screen sizes from 30 inches to 300 inches and is compatible with multiple aspect ratios including 16:9, 16:10, 4:3, and 1:1. The four-corner correction and Smart Fit alignment tools make it easy to perfectly fit the image to any impact screen shape or size.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the ZK431ST-B support ceiling or portrait mounting?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eYes. The projector supports 360-degree operation and portrait mode projection, giving you flexible installation options. It can be ceiling-mounted, wall-mounted, or floor-positioned depending on your sim room layout. Mounting hardware is sold separately.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Optoma","offers":[{"title":"Default Title","offer_id":56680710897969,"sku":"ZK431ST-B","price":1799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1724\/7681\/files\/joGCtc5u29lJd3aJZQQOmNxiSbC3HxbXUhhRwWqq.jpg?v=1791501951","url":"https:\/\/omahasportsandgames.com\/products\/optoma-zk431st-b-true-4k-uhd-short-throw-laser-projector-4-100-lumens","provider":"Omaha Sports \u0026 Games","version":"1.0","type":"link"}