1 / 6

1 6

Product Summary

Optoma ZK431ST 4K UHD 4,100-Lumen Short Throw Laser Projector The Optoma ZK431ST is a compact 4K UHD short throw laser projector designed for education, business, simulation, museums, and immersive presentation environments. Delivering True 4K UHD resolution, 4,100 lumens of brightness, and a 0.496:1 short throw...

Optoma ZK431ST True 4K UHD Short Throw Laser Projector

Share

SKU: ZK431ST

Authorized Dealer Authorized Optoma Dealer

🛡️Manufacturer Warranty Authorized dealer coverage

🛠️Expert Support Pre- and post-sale assistance

Call for Price

Contact OfficeWonderland for current pricing and availability.

Fall Special | additional discount in cart

Optoma ZK431ST True 4K UHD Short Throw Laser Projector Call for Price

In Stock Current availability for this model

Free Ground Shipping On qualifying orders to the lower 48 states

Project & Volume Pricing Special pricing available for larger orders

Education & Government Purchase Orders Accepted for qualified organizations

Financing Available with Shop Pay

Special Pricing Available Education • Government • Nonprofits • Corporate • Volume Orders

✓ Tax-Exempt Purchasing Available

Key Features

4K UHD DLP Laser Projector
3840 × 2160 Ultra HD Resolution
4,100 Lumens Brightness
0.496:1 Short Throw Ratio
Optoma DuraCore Laser Light Source
Up to 30,000-Hour Laser Life in Eco Mode
300,000:1 Contrast Ratio

Best For

🎓Higher Education
🏢 Corporate Collaboration
🏛️ Government
🏨 Hospitality
🎮 Gaming & Entertainment Spaces

Product Description

Optoma ZK431ST 4K UHD 4,100-Lumen Short Throw Laser Projector

The Optoma ZK431ST is a compact 4K UHD short throw laser projector designed for education, business, simulation, museums, and immersive presentation environments. Delivering True 4K UHD resolution, 4,100 lumens of brightness, and a 0.496:1 short throw lens, the ZK431ST produces stunning, crystal-clear images from just a few feet away. Powered by DuraCore laser technology, it offers up to 30,000 hours of virtually maintenance-free operation, while advanced installation tools and Optoma Smart Control compatibility simplify setup in virtually any room.

Stunning True 4K UHD Projection

Present every detail with exceptional clarity.

Native 3840 × 2160 (True 4K UHD) resolution
Screen sizes from 30" to 300"
Crisp text and graphics
Outstanding image detail
Ideal for presentations, education, and digital content

The native 4K resolution ensures sharp visuals that remain clear and readable even on large projection screens.

Short Throw Performance

Create large images in compact spaces.

0.496:1 short throw ratio
Projects 30"–300" images
Large image from approximately 2–11 feet
Minimizes presenter shadows
Maximizes available room space

The short throw design is ideal for classrooms, conference rooms, simulation environments, and other installations where space is limited.

Bright Laser Projection

Deliver vibrant images in everyday environments.

4,100 ANSI lumens brightness
Excellent visibility in controlled to moderate ambient light
Rich colors and sharp contrast
Consistent brightness over time

High brightness ensures presentations remain clear and engaging in classrooms, meeting rooms, and collaborative workspaces.

DuraCore Laser Technology

Maintenance-free performance for years.

DuraCore laser light source
Up to 30,000-hour lifespan
No lamp replacements
Reduced maintenance costs
Instant on/off operation

Laser illumination provides reliable long-term performance while eliminating the downtime and expense associated with traditional projector lamps.

Flexible Installation

Adapt to virtually any projection environment.

Four-corner geometric correction
±15° vertical keystone adjustment
360° projection capability
Flexible mounting options
Professional image alignment

Advanced installation features make it easy to achieve a perfectly aligned image in classrooms, boardrooms, museums, and creative installations.

Smart Setup & Control

Simplify installation and daily operation.

Optoma Smart Control App compatible
Mobile projector control
Guided screen alignment
Remote management
Easy system configuration

Control and align the projector directly from a compatible mobile device for faster installation and simplified operation.

Built for Professional Environments

Reliable performance for continuous commercial use.

Compact, lightweight design
Energy-efficient laser engine
Low total cost of ownership
Commercial-grade reliability
Long operating life

Designed for business and education, the ZK431ST delivers dependable performance while minimizing maintenance and operating costs.

Lumens (ANSI)

4100

Native Resolution

3840 x 2160

Display Technology

DLP

Aspect Ratio

16:9 (4K UHD)

Purchase Orders

We accept Purchase Orders from all Schools, Universities, Major Government Agencies and Not-for-profit Organizations within the United States and Canada Only. All Purchase Orders are subject to approval.

Simply email, fax or mail your purchase order and please ensure your P/O contains the following information:

Contact name, email address & telephone number. Note: An email address is required to receive order/shipping confirmation.
Billing name & address.
Shipping address.
Tax ID#. For tax exempt orders, please see the Tax Exempt information below.
Purchase Order Number.
Date needed. Please note: Up to 3–5 days are needed to process requests. This does not include delivery time.
Authorized signature. Your purchase order can only be accepted when accompanied by the signature of the officer authorizing the purchase and when submitted on your organization's official purchase order form or letterhead.
Purchase orders must be in excess of $75 excluding shipping. All prices are in USD.
Sales tax is charged only on orders shipping to the state of Florida.

Submit Your Purchase Order

Please email completed purchase orders to Sales@OfficeWonderland.com .

You can also fax it to: (786) 916-5963

Or mail it to:

OfficeWonderland.com
Attn: Purchase Orders
20400 NE 16th PL
North Miami Beach, FL 33179

Once we have all the information requested above, an account and order will be created.

Please Note

Please allow 3–5 days for us to process requests.
Confirmation emails are sent when the order is placed and another email is sent when the order ships.
Please make all checks payable to OfficeWonderland Ltd. at the address referenced above.
Payments on PO orders are due within 30 days.

Terms

We operate with a Net 30 Day payment arrangement for approved purchase orders. Payment is expected to be made in full not more than 30 days after your order is processed.

Optoma

Optoma ZK431ST True 4K UHD Short Throw Laser Projector

ADD TO CART FOR LOWER PRICE

$1,799.00

Brightness

N/A

N/A

Weight without stand

N/A

N/A

Weight with Stand

N/A

N/A

Duty Cycle

N/A

N/A

Dimensions

N/A

N/A

Aspect Ratio

16:9 (4K UHD)

N/A

Content

N/A

N/A

Native Resolution

3840 x 2160

N/A

Lumens (ANSI)

N/A

N/A

Contrast Ratio

N/A

N/A

Throw Distance

N/A

N/A

Lens

N/A

N/A

Inputs

N/A

N/A

Outputs

N/A

N/A

Display Technology

DLP

N/A

Wireless Networking

N/A

N/A

Speakers

N/A

N/A

Economode

N/A

N/A

Audible Noise

N/A

N/A

Lamp Life

N/A

N/A

Short Throw

N/A

N/A

Aspect Ratio

16:9 (4K UHD)

N/A

Image Size Diagonal

N/A

N/A

Lens Shift

N/A

N/A

Data / Video Signals

N/A

N/A

Digital Keystone

N/A

N/A

Unit Weight

N/A

N/A

Projector Methods

N/A

N/A

Dimensions (WxDxH)

N/A

N/A

Dimensions (WxDxH)

N/A

N/A

Contrast Ratio

N/A

N/A

Viewing Angle

N/A

N/A

Response Time

N/A

N/A

Sound Output

N/A

N/A

Screen Size

N/A

N/A

Monitor Configuration

N/A

N/A

Display Orientation

N/A

N/A

WiFi

N/A

N/A

Communication Port

N/A

N/A

Refresh Rate

N/A

N/A

General

N/A

N/A

VESA Pattern

N/A

N/A

TAA Compliant

N/A

N/A

PDF Documents

N/A

N/A

Diagonal Size

N/A

N/A

Dimensions

N/A

N/A

Aspect Ratio

N/A

N/A

Sensor

N/A

N/A

Resolution

N/A

N/A

Signal Sysyetm

N/A

N/A

Signal To Noise Ratio

N/A

N/A

Gain

N/A

N/A

Shutter Speed Range

N/A

N/A

Exposure Control

N/A

N/A

White Balance

N/A

N/A

Image Stabilization

N/A

N/A

Image Flip

N/A

N/A

ICR

N/A

N/A

Sync

N/A

N/A

Output

N/A

N/A

Audio Input

N/A

N/A

Audio

N/A

N/A

Camera Control

N/A

N/A

Focal Length

N/A

N/A

Minimum Object Distance

N/A

N/A

Pan Angle

N/A

N/A

Tilt Angle

N/A

N/A

Pan Speed

N/A

N/A

Tilt Speed

N/A

N/A

Presets

N/A

N/A

Operating Temperature

N/A

N/A

Power

N/A

N/A

Power Consumption

N/A

N/A

Minimum Illumination

N/A

N/A

Optical Zoom

N/A

N/A

TAA Compliant

N/A

EXPERT AV HELP

Need Help Choosing the Right AV Solution?

Our AV specialists can help with product selection, system compatibility, project pricing and complete solutions for commercial, education and government applications.

Speak With an AV Expert Request a Quote