Fine-Pitch LED Walls
Seamless auditorium-scale video with no bezels and front-serviceable modules.
P0.9–P2.5HDR10
Student & Education Fair · Live Stand
Don't read about it.
Pick it up and try it.
This is the eratex stand, running in your hand. Draw on a real smart-board engine with your finger or stylus, pull apart the hardware, dial in an LED wall and trace a whole campus network — no sign-up, no sales pitch, nothing to install.
Station 01
Smart Board
Draw with pen or finger
Station 02
Hardware
Tap the hot-spots
Station 03
LED Lab
Slide the pixel pitch
Station 04
Network Map
Follow the traffic
Best on a touchscreen — but a mouse works too.
Interactive Fair Mode
Scan once. Explore everything.
Every demo on this page runs on the device already in your pocket. Open it at the stand and our team will walk you through it — or take it home and keep exploring at your own pace.
Your device
Phone, tablet or laptop. Nothing to install.
Real input
Stylus pressure and multi-touch, detected live.
Bring a friend
Two people can draw on the board at once.
Type or scan
eratex.co
A printed QR code is on the stand banner — or just type the address above.
Live Demo · Station 01
Test the Smart Board Live
The same smooth-writing engine our interactive flat panels use, running in your browser. Use a finger, a stylus or a mouse.
Draw here
Finger, stylus or mouse — try two fingers at once
Input: waiting…
Strokes: 0
Smooth Writing
Low-latency ink with pressure response.
Wireless Sharing
Cast from any student or staff device.
Built-in Tools
Geometry, graphing and STEM widgets.
Smart Management
Lessons saved and pushed to the cloud.
Safe & Secure
Locked-down platform with central MDM.
Hands-on · Stations 02–04
Explore the Technology
Four interactive breakdowns instead of four pages of specifications. Tap anything that glows.
Smart Board Anatomy
Tap a marker
01 · Display Surface
4K UHD Anti-Glare Panel
Zero-bonded toughened glass keeps the ink directly under the nib, so writing feels like a pen on paper rather than a layer of air.
3840 × 2160Anti-glare 4H65" · 75" · 86"
02 · Touch Layer
20–40 Point Multi-Touch
Infrared sensing tracks many hands at once, so a whole group can annotate together. Palm rejection lets students rest a hand on the glass while writing.
40-point touchPalm reject<8 ms latency
03 · Pen Tray
Dual-Tip Passive Stylus
No batteries and no pairing. One end writes thin, the other highlights thick, and the board tells them apart automatically.
Battery-freeThin + thick tipMagnetic dock
04 · OPS Slot
Slot-In Windows PC
Android runs the whiteboard out of the box. Slide in an OPS module and the same panel also runs the Windows software your school already licenses.
Android nativeOPS i5 / i7Tool-free swap
05 · Front Ports
Reachable Connectivity
USB-C with power delivery, HDMI in and USB touch-out sit on the front edge — a visiting lecturer plugs in without crawling behind the panel.
USB-C 65 WHDMI 2.0Touch USB-B
06 · Camera & Mic Bar
Built-In Hybrid Teaching
A 4K camera with an array microphone turns the room into a video-conference space for remote lessons and parent meetings — no trolley of extra kit.
4K camera8-mic array8 m pickup
07 · Speakers
Front-Firing 2 × 20 W
Aimed at the class rather than the wall, so the back row hears the video without a separate sound system.
2 × 20 WFront-firingSpeech-tuned
VR Headset Components
Tap a marker
01 · Optics
Pancake Lenses & LCD Panels
Per-eye panels behind pancake optics give a sharp image in a shorter, lighter body — which matters when a class wears them for forty minutes.
2064 × 2208 / eye90–120 Hz~105° FOV
02 · Tracking
Inside-Out 6DoF Cameras
Four wide-angle cameras map the room, so students can walk around a molecule. No base stations to mount on classroom walls.
6DoFNo base stationsGuardian bounds
03 · IPD Adjustment
Fits Every Face
A sliding interpupillary adjustment covers the range from a young student to an adult teacher, which keeps the image sharp and prevents eye strain.
58–72 mmGlasses spacer
04 · Head Strap
Quick-Swap Hygiene Fit
A rigid halo strap carries the weight on the crown instead of the cheeks, and the face interface pops off for wipe-down between classes.
Halo strapWipeable liner30 s reset
05 · Power
Rear Counterweight Battery
Moving the cell to the back balances the headset and runs two to three lessons. Carts recharge and sync the whole class set overnight.
2–3 h runtimeCart charging
06 · Controllers
Controllers & Hand Tracking
Haptic controllers for precision work, or bare-hand tracking for younger students — with a teacher console that can launch and pause the whole class.
HapticsHand trackingKiosk mode
LED Pixel Pitch Lab
Drag the slider
Pixel pitch is the gap between LEDs in millimetres. Smaller pitch means you can stand closer before the image breaks into dots. Fine pitches suit lecture theatres; coarser pitches are for courtyards and sports fields where everyone is far away. Drag the slider and watch the sun's rays coarsen.
Magnified detail of the panel — LED spacing is shown to scale, so the same artwork visibly coarsens as the pitch grows.
Selected specification
P2.5
Indoor- Pixel density
- 160,000 px/m²
- Comfortable viewing from
- 2.5 m
- Native 1080p width
- 4.80 m
- Typical campus use
- Auditoriums, assembly halls and multi-purpose rooms.
Viewing distance uses the industry rule of thumb — roughly one metre per millimetre of pitch. We confirm it against your actual room on survey.
Campus Network & Low-Current Topology
Tap a node
One structured backbone carries data, voice, cameras, displays and life-safety signalling. Follow the traffic from the street to the classroom.
Core
Layer-3 Core Switch
The heart of the campus. Routes between every VLAN, carries 10–25G uplinks to each block and runs on redundant power so a single PSU failure doesn't take a school offline.
10/25G uplinksDual PSUStackable
Uplink
Internet Service Entry
Fibre lands in the main distribution frame. We size the circuit against real concurrency — a thousand devices at 8 a.m., not a headline number.
Fibre entryFailover ready
Edge
Gateway & Firewall
Content filtering appropriate for a school, guest isolation, staff VPN and traffic shaping that keeps a lesson stream smooth while the labs download updates.
Content filterGuest portalQoS
Distribution
PoE++ Access Switches
One cable per device delivers both data and power — access points, cameras, phones and attendance terminals all run without a local socket.
802.3bt802.1XPer-port ACL
Endpoint
Wi-Fi 6 / 6E / 7 Access Points
Placed per classroom from an RF survey, not spaced evenly down a corridor. Seamless roaming keeps a tablet connected as a class moves between blocks.
6 GHz802.11k/v/rWPA3
Endpoint
Smart Boards
Wired where it matters so casting never stutters, and managed centrally — firmware, apps and settings pushed to every classroom at once.
Gigabit wiredCentral MDM
Endpoint
IP Cameras on an Isolated VLAN
Surveillance traffic never shares a broadcast domain with students. Recording runs to a RAID-protected NVR with retention set to your policy.
4K IPCCTV VLAN30–90 day
Endpoint
Voice, Intercom & Public Address
One dial plan campus-wide, multi-zone paging and automated bell scheduling — all riding the same cabling, with priority over ordinary traffic.
IP PBXMulti-zoneBell timing
Endpoint
Face & RFID Attendance
Terminals at each entrance register students in seconds and push straight into the portal, so registers are done before the first lesson starts.
Face recognitionRFID cardLive reports
Life Safety
Addressable Fire Alarm Panel
Reports the exact device in the exact room, and on activation takes over the public address for voice evacuation and every digital sign for exit guidance.
Addressable loopPA takeoverSign override
The Full Stack
Everything Behind the Walls
Designed, installed, commissioned and maintained by one accountable partner.
Structured Cabling
Fibre and Cat6A backbone, certified channel-tested and labelled to standard.
Cat6AOS2 / OM4
High-Density Wi-Fi
RF-surveyed Wi-Fi 6 / 6E / 7 built for exam halls, not empty corridors.
6 GHzHeat-mapped
Fire Alarm Systems
Addressable detection, voice evacuation and civil-defence documentation.
AddressableVoice evac
CCTV & AI Analytics
4K IP coverage with line-crossing, loitering and people-counting analytics.
4K IPVMS
Voice, PA & Intercom
Campus dial plan, multi-zone paging, bell scheduling and video door entry.
IP PBXMulti-zone
Take It With You
Stand Collateral
The same one-pagers we're handing out at the stand. Tap any sheet to read it full-size.
Technology partners
Hikvision
Ruijie · Reyee
Eaton
and other vendor-neutral platforms
Talk to us at the stand — or after
Get the Technical Data Sheets
Tell us which systems you're specifying and we'll send the data sheets, reference drawings and an indicative bill of quantities — usually within one business day.