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Optoma ZK430ST DLP 4K Laser Short Throw Projector

optoma ZK430ST projector

$5,299 $4,199

Save $1100. Must end 31st July



3yr warranty
australian stock
laser projector
1080p resolution


  • UHD 3840 x 2160 16:9
  • 3700 ANSI Lumens
  • 300,000:1 Contrast
  • 3.0kg Weight
  • 28db (eco) Fan Noise
  • 3 Year/20,000hr Warranty
  • 3 Year/20,000hr Laser Warranty
  • Est. Laser Life up to 30,000hrs

Key Features

  • Long Life Laser Lightsource
  • Horizontal & Vertical Keystone
  • Short Throw
  • 2x HDMI Connection
  • Powerful 15W Speaker
  • 360° Installation
  • Portrait Projection
  • 3D Capable(3D glasses required)
  • IP6X Dust Resistant Optical Engine

Optoma ZK430ST Throw Distance Chart

Throw Ratio: 0.496:1
Examples of installation distance for some popular screen sizes.
Image Size Installation Distance
92" (16:9) 2030x1140mm Approx. 1.0m
100" (16:9) 2214x1245mm Approx. 1.1m
110" (16:9) 2435x1370mm Approx. 1.2m
120" (16:9) 2657x1494mm Approx. 1.3m
135" (16:9) 2990x1681mm Approx. 1.5m
150" (16:9) 3320x1867mm Approx. 1.6m

Optoma ZK430ST 4K Short Throw Laser Projector

The Optoma ZK430ST offers the incredible detail of a 4K UHD resolution, a long life laser light source and a compact light weight design. Weighing in at just 3kg in a small size and shape the ZK430ST is perfect for digital signage or general projection. The long life laser light source means no worrying about the hours you put into it, no lamps, no technicians. Backed with a 3 year warranty the Optoma offers peace of mind and dependability. The short throw lens can blow up a 2 metre wide projection at just a one metre distance.

  • True 4K UHD resolution and laser technology - 3700 lumens, HDR and HLG compatible
  • Small form factor for easy installation - Short throw lens, 360-degree and portrait projection
  • Reduced power consumption for a long life span - DuraCore laser technology delivers 30,000 hours maintenance free laser light source
  • External power supply - More reliability, portability and energy efficiency
duracore laser

Eco-friendly compact high brightness 4K UHD laser projector

The ZK430ST is one of Optoma's most compact and hassle-free 4K UHD DuraCore laser projectors to date. Designed for maintenance-free continuous operation, this 3700-lumen projector delivers powerful image performance with flexible installation features and extensive connectivity options in a sleek, compact form factor, up to 34% smaller than previous Optoma models.¹

To support Optoma’s commitment to sustainability, the ZK430ST cuts power consumption by up to 45% compared to Optoma’s lamp-based projectors.² Energy-saving DuraCore laser technology ensures a long product lifespan of up to 30,000 hours without the need for additional lamps, requires minimal maintenance, and is mercury-free, further lowering its carbon footprint.

An added benefit, the ZK430ST features an external power supply offering more reliability, portability and energy efficiency.

Designed with the environment in mind, the eco-friendly chassis design is made with up to 50% PCR (Post-Consumer Recycled) plastics and the packaging contains up to 97% recyclable materials.³ In addition, the compact product and packaging size of the Optoma ZK430ST projector allows 2x more products carried per container, resulting in more efficient logistics to help further reduce carbon emissions.¹

Geared for conference rooms, boardrooms, and other corporate spaces, the ZK430ST has a short throw lens meaning it can be positioned less than two feet from any wall. For ultimate convenience it comes with RJ45 and RS232 connection for monitoring and controlling and a built-in speaker.

¹ Based on the comparison of the 2023 Optoma mainstream laser projectors and its previous generation.² Comparison of 2023 Optoma mainstream laser projectors and its equivalent lamp-based counterparts.³ Based on the packaging of 2023 Optoma laser projectors.

True 4K UHD resolution

Ultra HD 4K resolution delivers sharper, life-like images and richer colors - allowing you to sit closer to the screen and enjoy a more immersive experience.

Our DLP projectors provide CTA (Consumer Technology Association) approved True 4K UHD resolution, capable of projecting 8.3 million on screen pixels. That's four times more detail than Full HD and twice as many from competing technology, which only delivers 4.1 million pixels.

zk430st+ Resolution

Energy-saving technology

Reduces power consumption by up to 47% compared to lamp-based solutions.

zk430st+ Low Power Consumption

Reduced carbon footprint

Compact products made with fewer materials to minimize logistical environmental impact.

zk430st+ Co2

Eco-friendly packaging

Packaging made from recycled and reusable materials.

zk430st+ packaging

Sustainable materials

Made from non-hazardous and recycled materials.

zk430st+ Sustainable packaging

Lights on viewing

This versatile projector combines high brightness and vivid colors for vibrant, true-to-life visuals in any environment*. Make a lasting impression with bigger and bolder presentations any time of day.

*With no direct sunlight or lights directed on screen. zk430st+ brightness
zk430st+ Laser

Laser technology

Optoma laser projectors use high-quality lasers to create the projected image. In many situations the perceived brightness from laser illumination projectors can be twice that of an equivalent lamp-based model. They also deliver increased efficiency to maintain consistent brightness, superior color performance, instant on/off and an extraordinary life span of up to 30,000 hours.


Industry leading long lifetime is achieved using Optoma’s DuraCore technology. Implementing advanced laser diode cooling techniques and an innovative dust resistant design.

Short Throw

With a short throw lens, you can project an impressive 100” image from just over a meter away. This allows you to place the projector closer to the wall, reducing shadows so you can present with ease.

HDR and HLG compatible

Capable of receiving and displaying both HDR10 and Hybrid Log Gamma (HLG) HDR content. This Optoma projector allows you to see far more detail and texture. Objects look more solid and lifelike and the extra detail creates a greater sense of depth.

zk430st+ HDR

Amazing color

Show off presentation and classroom content with stunning colors in any environment. Optoma projectors provide reliable color performance suitable for any content and environment. From accurate sRGB colors for lifelike images to vibrant punchy presentations. We have a display mode to specifically meet your needs. Perfect for a range of graphic and video presentations.

zk430st+ Amazing Colour

Next generation display management

Peace of mind

Optoma Management Suite (OMS Local)™ encompasses all Optoma display solutions in a single location to serve as an interface for simultaneously managing, monitoring and diagnosing issues across them all. Whether it's multiple devices in a school, exhibition hall or office space, OMS local is perfect for keeping in control.

OMS™ Local also helps to alert users when a problem arises, and for an extra layer of readiness, institutions can also use this platform to set alerts and broadcast emergency announcements.

zk430st+ OMS Cloud


Featuring a wide range of options you can control and monitor the projector remotely.

  • RS232 - Optoma projector’s come with an extensive set of RS232 commands making it simple and easy to manage using any control system.
  • AMX compatible - Dynamic discovery protocol is incorporated into the projector allowing for easy installation with AMX control systems.
  • Crestron RoomView - Using the compatible RoomView® software you can power on/off, monitor, manage and control up to 250 projectors at the same time from any computer
  • Extron IPLink compatible - Allows for easy installation with Extron control systems

Four corner correction

Four corner correction enables the keystone of the projector to be adjusted in both the vertical and horizontal plane, so you can individually warp each corner of the projected image to make it perfectly square. Ideal for uneven walls or in spaces where the projector placement is awkward or limited and needs to be installed at an angle.

zk430st+ 360 Degree angle

360 projection*

With 360° projection,* images can be displayed in any orientation, giving you the freedom and versatility to install this projector in the desired location.
*For more information please refer to the user manual

zk430st+ 3D

Full 3D

Optoma projectors can display true 3D content from almost any 3D source, including 3D compatible graphics cards, 3D broadcasting and the latest generation 3d media servers.

zk430st+ 24/7 Operation

24/7 operation

Optoma projectors have been designed to operate 24 hours a day in standard orientation. Perfect for applications where prolonged periods of use is required. Subject to 24 hour terms and conditions.

24/7 Operation - standard lamp warranty applies. Projector warranty is based on standard business usage hours. For optimum performance Optoma recommends that your projector is turned off or placed in standby mode for 30 minutes every 24 hours to prolonging the life of your lamp.

zk430st+ Auto Off

Auto power off

There may be instances when the projector is left running when not in use. To help save energy, the "auto power off" feature automatically turns off the projector after a set period of time if it is not being used

zk430st+ Speaker

Integrated speaker

Complete your home entertainment experience with the convenience of a powerful built-in speaker for exceptional sound quality and an easy set up without the need for costly external speakers.

zk430st+ USB Power


Use the USB-A port to power an HDMI dongle, such as Google Chromecast.

Display Technology DLP
Native Resolution UHD (3840x2160)
Brightness 3,700 ANSI Lumens
Contrast 300,000:1
Aspect Ratio 16:9 Native, 4:3, 16:10
Keystone Correction ±15° Vertical, ±15° Horizontal
Displayable Colors 1073.4 million colors (10 bit)
Horizontal Scan Rate 15 ~ 140Khz
Vertical Scan Rate 24 ~ 240Hz
Uniformity 75%
Projection Screen Size 36" ~ 300" diagonal
Light Source Laser
Light Source Life 30,000 hours (Eco mode)
Throw Ratio 0.496:1
Projection Distance 0.4m – 3.2m
Zoom None
Focal Length 7.51
Offset 116%
I/O Connectors Inputs 2 x HDMI 2.0
Outputs 1 x Audio 3.5mm, 1 x USB-A power 1.5A
Control 1 x RS232, 1 x RJ45
Noise Level 28dB (eco)
Noise Level 35dB Max
Computer 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 compatibilty 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 Temperature 0°C ~ 40°C, Max. Humidity 80%, Max. Altitude 2,500ft
Remote control Card style
Speaker count 1
Speaker (Watts) 15W
In the box AC power cord
Remote control with 1x CR2025 Battery
Basic user manual
Optional wireless models UHDCast Pro
Power Supply External power supply, 100V ~ 240V, 50-60Hz
Power consumption (standby) 0.5W
Power consumption (min) 126W
Power consumption (max) 185W
Dimensions (W x D x H) 10.79" x 8.5" x 4.49"
Weight (Kg) Gross weight 4.2 kg, Net weight 3 kg

What's in the Box
remote control
Remote Control
ZK430ST power adapter
Power Adapter

Rear Panel

zk430st+ rear panel

Optional Accessories

+1 year warranty
Warranty Upgrade +1 Year

More Information

remote control
Dareu Red Laser Presenter Remote Control

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hdmi cable
Premium HDMI Cable
From $19.95

SeeMax S1A-W
SeeMax S1A-W White Projector Ceiling Mount

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Boblov 3d glasses
Boblov DLP Link 3D Glasses

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