Optoma ZK431ST Projector
Optoma ZK431ST Projector
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Delivery Info
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Specification
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Display/image
Display technology: DLP®
Resolution: UHD (3840x2160)
Brightness: 4,100 lumens
Contrast ratio: 300,000:1
Contrast ratio - dynamic: 2,000,000:1
Native aspect ratio: 16:9
Aspect ratio - compatible: 4:3,16:9,16:10,21:9,32:9
Keystone correction - horizontal: +/-15°
Keystone correction - vertical: +/-15°
Displayable colours (millions): 1073.4
Horizontal scan rate: 15 ~ 150Khz
Vertical scan rate: 24 ~ 240Hz
Uniformity: 75%
Screen size: 0.76m ~ 7.62m (30" ~ 300") diagonal
Lamp info
Light source type: Laser
LASER life: 30,000 hours
Optical
Throw ratio: 0.496:1
Projection distance (m): 0.33m - 3.3m
Zoom type: Fixed
Focal length (mm): 7.51
Native offset: 114%
Connectivity
Connections:
• Inputs - 1 x HDMI 2.0, 1 x HDMI 2.0 (eARC)
• Outputs - 1 x Audio 3.5mm, 2 x USB-A power 1.5A
• Control - 1 x RS2321 x RS232, 1 x RJ45, 1 x 12V trigger, 1 x 3D sync
General
Noise level (min): 29dB
Noise level (max): 35dB
PC compatibility: UHD, FHD, UXGA, SXGA, WXGA, HD, XGA, SVGA, VGA, Mac
2D compatibility: NTSC M/J, 3.58MHz, 4.43MHz PAL B/D/G/H/I/M/N, 4,43MHz SECAM B/D/G/K/K1/L, 4.25/4.4MHz 480i/p, 576i/p, 720p(50/60Hz), 1080i(50/60Hz), 1080p(50/60Hz)
3D compatibility: Yes (DLP 3D; PC frame sequential 120Hz 3D, Blu-ray DVD 3D)
3D: Full 3D
Security: Security bar, Kensington Lock, Password protected interface
IP rating: IP6X
OSD / display languages: 25 languages: Arabic, Czech, Danish, Dutch, English, Farsi, Finnish, French, German, Greek, Hungarian, Indonesian, Italian, Japanese, Norwegian, Polish, Portuguese, Romanian, Russian, Chinese (simplified), Spanish, Swedish, Chinese (traditional), Turkish, Vietnamese
24/7 operation: Yes
360° operation: Yes
Operating conditions: 0°C ~ 40°C, Max. Humidity 80%, Max. Altitude 2,500ft
Speaker count: 1
Watts per speaker: 15W
In the box: AC power cord, Remote control, 2x AAA batteries, Basic user manual
Power
Power supply: External power supply, 100V ~ 240V, 50-60Hz
Power consumption (standby): <0.5W
Power consumption (min): 124W
Power consumption (max): 178W
Weight and dimensions
Dimensions (W x D x H) mm: 274 x 216 x 114
Gross weight: 4.3 kg
Net weight: 2.9 kg
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Optoma ZK431ST Projector
The Optoma ZK431ST is an excellent 4K UHD short-throw laser projector for golf simulator setups where image quality, brightness, and flexible installation are important. It offers 4,100 ISO lumens of brightness, true 4K UHD resolution (3840 × 2160), a long-life DuraCore laser light source rated up to 30,000 hours, and a dedicated Golf Sim Picture Mode for realistic greens, blues, and course details. With a short throw ratio of 0.496:1, it can be mounted close to the impact screen, helping to reduce shadows and making it particularly suitable for compact golf bays. However, its fixed zoom limits placement flexibility, and its input lag is not specified, making gaming responsiveness harder to assess.
Pros: True 4K UHD resolution, bright 4,100 ISO-lumen image, short 0.496:1 throw ratio, dedicated Golf Sim Picture Mode, 30,000-hour laser light source, HDR and HLG compatibility, 24/7 operation, 360° installation, IP6X dust protection.
Cons: Fixed zoom limits mounting flexibility, input lag not specified, higher 4K resolution may require a powerful gaming PC, limited image adjustment flexibility compared with projectors offering optical zoom.