Optoma ZK431ST: Compact 4K UHD 4,100-Lumen Short Throw Laser Projector for Business & Education
The Optoma ZK431ST brings true 4K UHD short throw projection within reach for budget-conscious educational institutions and corporate environments. Delivering an impressive 4,100 lumens of brightness, it produces bright, vibrant visuals in classrooms, training spaces, meeting rooms, and conference environments with moderate ambient light.
Powered by Optoma DuraCore laser technology, the projector offers up to 30,000 hours of maintenance-free operation, eliminating ongoing lamp replacement costs and minimizing downtime. With advanced installation tools including four-corner correction, keystone adjustment, 360° projection support, and compatibility with the Optoma Smart Control App, setup is quick, flexible, and user-friendly.
Key Features
- Native 4K UHD Resolution
Enjoy crystal-clear visuals with 3840 × 2160 resolution, ensuring text, spreadsheets, graphics, and video content remain sharp and readable on screens up to 300 inches. - Short Throw Projection
The 0.496:1 throw ratio projects large images from just 2 to 11 feet away, minimizing shadows and maximizing usable space. - 4,100 Lumens Brightness
Produce vivid, high-impact images in classrooms, boardrooms, and collaborative spaces with controlled to moderate ambient lighting. - 30,000-Hour DuraCore Laser Engine
Benefit from lamp-free operation, reduced maintenance requirements, and lower total cost of ownership. - Flexible Installation Options
Features four-corner correction, keystone adjustment, and 360° projection capability for easy deployment in virtually any room layout. - Mobile-Based Smart Control
Use the Optoma Smart Control App to simplify setup, perform screen alignment, and manage projector settings directly from your smartphone.
Future-Proofed, Sustainable, and Cost-Effective
Optoma's latest generation of lamp-free laser projectors is designed to deliver outstanding image quality, simplified installation, intelligent management tools, and long-term value for business, education, training, and simulation environments.
- Over-the-Air (OTA) Updates
- Compact, Space-Saving Design
- Low Maintenance Operation
- Eco-Friendly DuraCore Laser Technology
- High Brightness for Ambient Light Environments
- Optoma Smart Control Integration
- Optoma Management Suite (OMS™) Support
- Short Throw Projection
- Long Operational Lifespan
Clear, Shadow-Free Projection in Bright Environments
Featuring 4,100 lumens of brightness, the ZK431ST delivers vivid, detailed visuals that remain clear even in spaces with ambient lighting. Its short throw lens minimizes shadows and glare, making it an excellent choice for classrooms, meeting rooms, and commercial applications where presenters frequently interact with the screen.
Exceptional 4K UHD Visual Performance
Experience breathtaking detail with true 4K UHD resolution and over 8.3 million pixels. From detailed financial spreadsheets to intricate engineering diagrams, every image is rendered with remarkable clarity, ensuring audiences can easily view small text and fine details.
Reliable Long-Term Performance with DuraCore Laser Technology
Optoma's proven DuraCore Laser Technology delivers consistent brightness, vibrant color accuracy, and dependable performance for up to 30,000 hours. Instant power on/off functionality, lower energy consumption, and the elimination of lamp replacements help reduce operating costs while ensuring reliable operation for years to come.
- Up to 30,000 hours of lamp-free operation
- Reduced maintenance requirements
- Lower power consumption
- Reliable long-term brightness performance
Optimized Display Modes for Business and Education
Purpose-built display modes help optimize image performance across professional and educational applications. Combined with Optoma's advanced DLP technology, users benefit from accurate color reproduction, enhanced image consistency, and sharp presentation quality.
Smart Control at Your Fingertips
The Optoma Smart Control App streamlines installation, setup, and day-to-day operation through a mobile-friendly interface. Acting as an intelligent remote control, the app enables users to manage key projector functions while simplifying screen alignment and device management.
Supported Functions Include:
- Power On/Off Control
- Input Source Switching
- Status Monitoring and Alerts
- Screen Alignment Assistance
- Remote Device Management
*Available for both iOS and Android devices.
Smart Alignment Tools
- Smart Fit
- Smart Move
- Keystone Correction
- Four-Corner Adjustment
Instant Auto-Alignment with Smart Fit
Using a smartphone camera, Smart Fit automatically detects the screen frame and adjusts image positioning, dramatically reducing setup time and installation complexity.
Centralized Device Management with Optoma Management Suite (OMS™)
Optoma Management Suite (OMS™) is a powerful cloud-based or local network display management platform that allows IT teams and administrators to monitor, diagnose, and control audiovisual devices from a single interface.
With real-time monitoring and centralized management capabilities, OMS helps organizations maximize uptime, streamline maintenance, and optimize display performance across multiple locations.
- Centralized IT Control
- 24/7 Device Monitoring
- Remote Diagnostics
- Configuration Management
- Performance Optimization
Always Up to Date with OTA Firmware Updates
The ZK431ST supports Over-the-Air (OTA) firmware updates, ensuring the projector remains current without requiring USB drives or manual installation procedures. Users receive update notifications and can install new firmware directly through the device.
OTA updates may include new features, performance enhancements, bug fixes, and security improvements, reducing IT workload while maintaining optimal system performance.
Flexible Installation for Any Environment
Designed for maximum installation flexibility, the projector supports a variety of mounting and projection configurations to accommodate unique room layouts and specialized applications.
- ±30° Horizontal and Vertical
