ZK431ST
Optoma ZK431ST: Compact 4K UHD 4,100 Lumen Short Throw Laser Business and Education Projector
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 (3840×2160) 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 from just 1.3 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 layout
• Smart setup from your phone: The Optoma Smart Control App guides screen alignment and gives full projector control from a mobile device
Crisp 4K from wall to wall: Native 4K UHD (3840×2160) 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 from just 1.3 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 layout
• Smart setup from your phone: The Optoma Smart Control App guides screen alignment and gives full projector control from a mobile device
ZK521ST
Optoma ZK521ST: Compact 4K UHD 5,000 Lumen Short Throw Laser Business and Education Projector
The Optoma ZK521ST short throw projector delivers 5,000 lumens of brilliant True 4K UHD sharp visuals in a compact short-throw design, enabling large, shadow-free projections even in limited spaces. Engineered for 24/7 reliability, it offers a low-maintenance, energy-efficient laser solution with centralized IT management and smart control for corporate, education, or commercial uses.
Crisp 4K from wall to wall: True 4K UHD (3840×2160) makes text, data, and imagery sharp and readable across screen sizes up to 300"
• Project big from tight spaces: 0.79:1 short throw lens fills the screen from just 5.8 feet away
• Sustainable design: 50% recycled metal and PCR materials
• Optoma Management Suite (OMS): Enables centralized IT monitoring and control across multiple networked devices
• Optoma Smart Control App: Intelligent screen alignment and remote control directly from your mobile device
Crisp 4K from wall to wall: True 4K UHD (3840×2160) makes text, data, and imagery sharp and readable across screen sizes up to 300"
• Project big from tight spaces: 0.79:1 short throw lens fills the screen from just 5.8 feet away
• Sustainable design: 50% recycled metal and PCR materials
• Optoma Management Suite (OMS): Enables centralized IT monitoring and control across multiple networked devices
• Optoma Smart Control App: Intelligent screen alignment and remote control directly from your mobile device
