The Optoma ZK431ST makes True 4K UHD short throw projection accessible for budget-conscious education and corporate buyers. At 4,100 lumens, the ZK431ST delivers bright, vivid visuals in classrooms and conference rooms with moderate ambient light. DuraCore laser technology provides up to 30,000 hours of maintenance-free operation, eliminating the cost and disruption of lamp replacements. Four-corner correction, keystone adjustment, 360° projection capability, and Optoma Smart App compatibility make installation and alignment straightforward.
Crisp 4K from wall to wall: Native 4K UHD (3840x2160) makes text, data, and imagery sharp and readable across screen sizes up to 300"
- Project big from tight spaces: 0.496:1 short throw lens fills the screen (30-300") from about 2-11 feet away-no more crowded rooms or presenter shadows
- Bright enough for real classrooms: 4,100 lumens keep images clear and vibrant in rooms with controlled to moderate ambient light
- No lamps. No maintenance. 30,000 hours: DuraCore laser technology means zero replacement costs and no unexpected downtime
- Install anywhere: Four-corner correction, ±15° keystone adjustment, and 360° projection flexibility handle virtually any room layoutSmart setup from your phone: The Optoma
- Smart Control App guides screen alignment and gives full projector control from a mobile device
- DLP offers a brilliant, colorful and clear visual with deep blacks
- Time to put your 3D goggles on because this projector is able to project 3D content from any 3D display screen
- 4100 lm brightness is sufficient for demanding applications
- 4K UHD graphic mode for dependable, multi-functional graphic output
- With a contrast ratio of 300,000:1, you can see brilliant details over the screen with sharp clarity
- HDMI interface for top notch video and audio
| Brand | |
|---|---|
| Brand | Optoma Technology |
| GPU / Graphics | |
|---|---|
| Graphic Mode | 4K UHD |
| Screen / Display | |
|---|---|
| Contrast Ratio | 000:1 , 300 |
| Minimum Diagonal Image Size | 30" |
| Maximum Diagonal Image Size | 25 ft |
| Projection Method | Front |
| 3D Type | 3D |
| Maximum Projection Distance | 10.83 ft |
| Minimum Projection Distance | 12.99" |
| Lamp Type | Laser |
| Native Aspect Ratio | 16:9 |
| Standard Mode Brightness | 4100 lm |
| Throw Ratio | 0.49 |
| Throw Type | Short Throw |
| Native Resolution | 3840 x 2160 |
| Economy Mode Lamp Life | 30000 Hour |
| Power & Battery | |
|---|---|
| Voltage Frequency | 60 Hz |
| Operating Power Consumption | 178 W |
| HDMI Ports | |
|---|---|
| HDMI | Yes |
| Ethernet Port | |
|---|---|
| Network (RJ-45) | Yes |
| Camera / Webcam | |
|---|---|
| Maximum Focal Length | 7.51 mm |
| Audio | |
|---|---|
| Speaker Included | Yes |
| Size / Dimensions | |
|---|---|
| Form Factor | Wall Mountable |
| Appearance | |
|---|---|
| Color | White |
| General Features | |
|---|---|
| Video Signal Standard | HDTV |
| Video Signal Format | SECAM |
| Manufacturer | Optoma Technology |
| Printer/Scanner/Fax Specs | |
|---|---|
| Output Scan Format | 2160p |
| Packaging & Origin | |
|---|---|
| Batteries Included | Yes |
| Brand | Optoma Technology |
| UPC/GTIN | 796435448561 |
| MPN | ZK431ST |
| Unit Count | 1 Units |
| Return Policy | This product is eligible for 30-day returns subject to a restocking fee. See our return policy for details. |
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