Dahua LPH86-ST420-S3 · Price in Qatar

Name: Dahua LPH86-ST420-S3 86-inch Smart Interactive Whiteboard
Brand: Dahua
SKU: dahua-lph86-st420-s3
Availability: InStock

Overview

The Dahua LPH86-ST420-S3 is an 86-inch 4K interactive whiteboard for classrooms and meeting rooms. It runs Android 14 with 8 GB RAM, takes 21 touch points on Android and 40 on Windows, and adds Wi-Fi 6 plus an OPS slot for a PC module. It suits schools and offices across Doha and Lusail that need one large, ready-to-use board. Request a quote from SmartRooms Qatar.

What the LPH86-ST420-S3 does in one panel

The Dahua LPH86-ST420-S3 brings a 4K display, infrared touch and an Android 14 computer into one 86-inch unit. A teacher or presenter can write over slides, open files, browse the web and join a call from the panel itself, without moving a laptop to the front of the room. It belongs to the ST420-S3 series in Dahua's education range, and its 16:9 screen gives lesson material, spreadsheets and shared documents room to sit side by side.

Display and touch figures that matter in daily use

The 3840 × 2160 panel uses a DLED backlight and is rated at 400 cd/m² typical brightness, which helps text stay readable under classroom ceiling lights. Its 10-bit colour depth is quoted at 1.07 billion colours, the refresh rate is 60 Hz, and the typical response time is 8 ms, so scrolling and video look smooth. The front is 4 mm anti-dazzle tempered glass rated at 9H or harder. Infrared touch registers finger and stylus input with ±1 mm accuracy, and Zero Air Gap attachment removes the air layer between the glass and the display.

Connectivity, sound and the OPS slot

Video inputs: two HDMI inputs and one VGA input on the rear, with 4K at 60 Hz on the rear HDMI ports, plus one HDMI input at the front.
Front Type-C port: accepts DisplayPort input at 4K@60 fps, carries USB and touch signals, and delivers up to PD 65 W to a connected laptop.
Network and wireless: two RJ-45 ports, Wi-Fi 6 on 2.4 GHz and 5 GHz, Bluetooth, and NFC card swiping. The Wi-Fi can run a hotspot at the same time as a client connection.
Expansion: one rear OPS slot for a plug-in computer module, plus RS-232 for control.
Audio: two 20 W speakers, a 3.5 mm microphone input, line in, line out and SPDIF output.

Where it fits in Qatar

A private school in Al Wakrah fitting out a new primary classroom can use one 86-inch board in place of a projector, screen and separate whiteboard. In Education City, a university teaching room can use the OPS slot to host the department's own computer, so lecturers keep their usual software and logins. An office in Msheireb or Lusail connecting with teams abroad can use the front Type-C port for a quick laptop connection, and the 3.5 mm microphone input suits a presenter.

What to plan before installation

At 1,953.2 mm wide, 1,187.9 mm high and 121.3 mm deep, with a net weight of 62.0 kg and a gross weight of 77 kg, this panel needs more than one person to handle. The wall-mount bracket is already fitted to the back, and mounting holes are spaced 800 mm × 400 mm. The listed installation options are wall mounting or a mobile bracket. SmartRooms Qatar offers free site surveys to check the wall, cable route and mounting height before anything is fixed.

Typical power draw is 185 W and maximum is 350 W without an OPS module, with standby at 0.5 W or less. The supply accepts 100–240 VAC at 50/60 Hz, which covers Qatar's 240 V, 50 Hz mains. Operating temperature is 0 °C to +40 °C at 10–90% humidity. Summer temperatures in Qatar often rise above 45 °C, so install the panel in an air-conditioned room, away from windows and direct sun.

Ordering with SmartRooms Qatar

Request a quote with your quantity, site location and preferred installation method. We supply and deliver to all eight municipalities of Qatar, arrange professional installation, and usually issue quotations within one working day. Government buyers can work with LPOs and tenders, including Monaqasat, and pay by bank transfer, cheque or purchase order. Lead times are estimates confirmed in the quotation. Request a quote for the LPH86-ST420-S3 today and our team will confirm the configuration with you.

Highlights

86-inch 4K display, 3840 × 2160, 400 cd/m² typical
Android 14 with 8 GB RAM and 32 GB storage
Infrared touch: 21 points on Android, 40 on Windows
Wi-Fi 6, Bluetooth and NFC card swiping
Rear OPS slot for a plug-in computer module
Two 20 W speakers, operating range 0 °C to +40 °C

Classroom fit

At 86″ the farthest student should sit within about 6.4 m (6× the screen height).

Estimated timeline

Quotation within 1 working day · delivery timing depends on stock availability, and we confirm it with your quotation.

Specifications

68 specifications · Source: manufacturer · checked Oct 2026

Built-in System6

Operating System: Android 14
CPU: Quad-core A55
CPU Frequency: 1.9 GHz
GPU: ARM Mali-G52 MP2 (2EE)
RAM: 8 GB
ROM: 32 GB

LCD Panel11

Panel Dimensions: 86 inch
Backlight: DLED
Aspect Ratio: 16:9
Brightness: 400 cd/m² (typ.)
Static Contrast: VA: 4000; IPS: 1200
Resolution: 3840 (H) × 2160 (V)
Viewing Angle: 178° (H); 178° (V)
Lifespan: 50,000 hrs
Display Color: 1.07 Billion colors (10 Bit)
Response Time: 8 ms (typ.)
Refresh Rate: 60 Hz

Device Ports15

Light Sensor: Yes
Front Button: 8 buttons: Whiteboard, volume, curtain, touch lock, signal source, navigation bar, homepage, power supply
Front Ports: 1 × Type -C 1 × HDMI IN 1 × USB Touch 2 × USB 3.2 Gen1 Type-A 1 × 3.5 mm Mic in 1 × Type-C (DP IN (4K@60 fps) + USB 3.0 Host+USB 2.0 device (touch) + PD 65 W); supports wired network sharing
Rear Port: 1 × Type -C 2 × HDMI IN (4K@60 Hz) 1 × VGA IN 1 × HDMI OUT (4K@60 Hz) 3 × USB Touch 2 × USB3.2 Gen1 Type-A Audio In: 1 × 3.5 mm Line In Audio Out: 1 × SPDIF and 1 × 3.5 mm Line out RS-232: 1 × DB9 port Micro: 1 × USB 2 × RJ-45 1 × OPS slot
Wi-Fi: Yes
Wi-Fi Standard: 802.11b/g/n/a/ac/ax
Wi-Fi Frequency Range: 2.4 GHz/5 GHz
MAX Power Transmission (Wi-Fi): CE EIRP: ≤20 dBm@2400–2483.5 MHz; ≤23 dBm@5150–5250 MHz; ≤20 dBm@5250–5350 MHz; ≤27 dBm@5470–5725 MHz; ≤14 dBm@5725–5850 MHz
Bluetooth: Yes
Bluetooth Standard: EDR, BT2.1/4.2/5.2/5.3
Bluetooth Frequency Range: 2400–2483.5 MHz
MAX Power Transmission (Bluetooth): CE EIRP: ≤20 dBm@2400–2483.5 MHz;
RFID Modulation Method: ASK
RFID Frequency Range: 13.56 MHz
MAX Power Transmission (RFID): 42 dBuA/m @10 m

Function3

IR Receiver: 1
Card Swiping with NFC: Yes
Wireless Access Point: Wi-Fi 6, 2.4 GHz/5 GHz, supports 802.11 a/b/g/n/ac/ax₩WIFI 5, 2.4 GHz/5 GHz; Supports enabling Hotsport and WIFi at the same time

Touchscreen12

Response Time: ＜10 ms
Touch Technology: Infrared
Attachment Method: Zero Air Gap
Touch Points: 21 points for Android, and 40 points for Windows
Touch Accuracy: ±1 mm (0.04")
Valid Touch: 2 mm (0.08")
Touch Height: 3 mm (0.12")
Writing Mode: Finger and stylus pen
Communication Mode: USB
Anti-light Interference: Anti-dazzle
Surface Hardness: ≥9 H
Touch Resolution: 32,767 × 32,767

Speaker2

Built-in Speaker: 2 × full-frequency speaker
Power: 2.0 sound channel, front-end: 2 × 15 W₩2.0 sound channel, front-end: 2 × 20 W

General18

Power Supply: 100–240 VAC, 50/60 Hz
Power Consumption: 86- inch: 185 W (typ.); 350 W (max, without OPS and Quicker Changer)
Standby Power Consumption: ≤0.5 W
Operating Temperature: 0 °C to +40 °C (+32 °F to +104 °F)
Storage Temperature: –10 °C to +50 °C (+14 °F to +122 °F)
Operating Humidity: 10%–90% (RH)
Storage Humidity: 10%–90% (RH)
Product Material: Metal
Glass: 4 mm anti-dazzle tempered glass
Casing Color (Frame/Rear): Black frame for left and right, silver frame for top and bottom and black frame for back
Product Dimensions: 1,953.2 mm × 121.3 mm × 1,187.9 mm (79.90" × 3.66" × 46.77") (L × W × H)
Frame Size: Top frame: 27 mm (1.06"); Left and right frame: 16.5 mm (0.65"); Bottom frame: 68 mm (2.68")
Packaging Dimensions: 2,044.0 mm × 200.0 mm × 1,280.0 mm (80.47" × 7.87" × 50.39") (L × W × H)
Net Weight: 62.0 kg (136.69 lb)
Gross Weight: 77 kg (169.76 lb)
Holes Distance: 800 mm × 400 mm (31.50" × 15.75")
Installation: Wall mount or mobile bracket
Packing List: 1 × Smart interactive whiteboard; 1 × Power cord; 2 × Passive stylus pen; 1 × HDMI cabe; 1 × Quick start guide; 1 × Wall mount bracket (already installed on the whiteboard); 1 × Accessory package; 1 × Remote control; 1 × Legal and Regulatory Information

Certification1

Certifications: CE

Downloads

8 files from the manufacturer

PDF Datasheets LPH86-ST420-S3_S3_datasheet_20240918.pdf 2.8 MB PDF Manuals & guides Dahua Smart Interactive Whiteboard_Quick Start Guide_V1.0.1.pdf 1.9 MB PDF Manuals & guides Dahua Smart Interactive Whiteboard_User's Manual_V1.0.2.pdf 8.2 MB PDF Manuals & guides LPH86-ST420-S3_INSTALLATION_METHOD_EN.pdf 50 KB PDF Drawings & CAD LPH86-ST420-S3_DIMENSIONS.pdf 1.9 MB PDF Drawings & CAD LPH86-ST420-S3_PORT.pdf 165 KB 2601 Software & firmware · Opens on manufacturer site DHI_DahuaDeepHubLiteBasicS3_MultiLang_V3.012.0000000.1.R.260119 DOCX Other documents LPH86-ST420-S3_A&E_20260901215529.docx 39 KB

Questions about LPH86-ST420-S3

What is the Dahua LPH86-ST420-S3 designed for?

The LPH86-ST420-S3 is an 86-inch 4K interactive whiteboard for classrooms, lecture rooms and boardrooms. Its 3840 × 2160 panel, 400 cd/m² typical brightness and touch on the glass suit lessons, presentations and annotating shared documents. Schools, universities and offices in Qatar that want one display in place of a projector, screen and separate whiteboard will find it a straightforward fit.

Does the board run its own operating system?

Yes. It runs Android 14 on a quad-core A55 processor at 1.9 GHz, with 8 GB RAM and 32 GB storage, so teachers can open apps, browse and annotate without a laptop. For Windows software, connect a PC through HDMI or the front Type-C port, or fit an OPS computer module in the rear slot. Touch supports 21 points on Android and 40 points on Windows.

How many touch points does it support, and how accurate is the touch?

Touch uses infrared technology with 21 points on Android and 40 points on Windows. Accuracy is ±1 mm, the valid touch distance is 2 mm and touch height is 3 mm. Finger and stylus pen input both work, and two passive stylus pens are included. For a lesson where several pupils write at the same time, check the 21-point Android limit against your activity plan.

Will the screen stay readable in a bright room?

Brightness is rated at 400 cd/m² typical on a DLED backlight, and the 4 mm front glass is anti-dazzle, which reduces reflections from windows and ceiling lights. Position the board so that windows do not sit directly in front of the screen, and avoid direct sun on the display. Checking the placement during a site survey helps reduce glare before the panel is fixed to the wall.

What is the operating temperature, and can it go in a hot room?

The operating range is 0 °C to +40 °C with 10–90% relative humidity, and storage is –10 °C to +50 °C. Qatar summer temperatures can rise above 45 °C, so install the panel in an air-conditioned room, keep it away from windows and direct sun, and keep the cooling running while the board is in use. Confirm the room conditions with the SmartRooms Qatar team during a site survey.

Which ports do I need for laptops, video systems and networks?

The rear has two HDMI inputs at 4K@60 Hz, one HDMI output, one VGA input, two RJ-45 ports, USB touch ports and an RS-232 DB9 port. The front has a Type-C port that accepts DisplayPort 4K@60 fps and delivers PD 65 W, plus an HDMI input and USB ports. Plan cable routes so a laptop connects at the front and a PC or video system connects at the rear.

Does it include a camera or microphone for video calls?

The specification does not list a built-in camera or microphone array. The front has a 3.5 mm microphone input and the unit has two 20 W speakers, so a separate camera and microphone are needed for a video meeting. In a boardroom in West Bay or Lusail, ask for a quotation that covers the camera, microphone and cabling together so the room works from day one.

Can it be wall-mounted, and what should I plan for?

Yes. The wall-mount bracket comes already fitted to the unit, and the mounting holes are spaced 800 mm × 400 mm. The panel measures 1,953.2 mm wide, 1,187.9 mm high and 121.3 mm deep, weighing 62.0 kg net and 77 kg gross. Book a free site survey so the team can check the wall and cable route before fixing. A mobile bracket is the alternative installation method listed for this model.

What power does it need, and will it run on Qatar's mains?

The power input is 100–240 VAC at 50/60 Hz, which covers Qatar's 240 V, 50 Hz supply. Typical consumption is 185 W and maximum is 350 W without an OPS module, and standby draw is 0.5 W or less. Plan a socket near the mounting point and ask your electrician to confirm that the supplied power cord fits the BS 1363 sockets used in Qatar.

How does the OPS slot help a school or office?

The rear OPS slot takes a plug-in computer module, so a school or company can keep its own computer inside the board and avoid a separate PC at the front of the room. An OPS module is not part of the standard package listed for this model, so confirm the module type and whether it should be included in your quotation. Ask the SmartRooms Qatar team which option fits your software before ordering.

Does it have wireless networking, and what are the Wi-Fi details?

Yes. Wi-Fi 6 operates on 2.4 GHz and 5 GHz and supports 802.11 a/b/g/n/ac/ax, and it can run a hotspot at the same time as a Wi-Fi connection. The board also includes Bluetooth, NFC card swiping and 13.56 MHz RFID support. Wired RJ-45 ports remain the better choice for fixed network connections in schools and offices.

What comes in the box, and how do I order several units?

The package includes the board, power cord, two passive stylus pens, an HDMI cable, a remote control, a quick start guide, an accessory package and the wall-mount bracket already fitted. Schools and government offices ordering several units can issue an LPO or respond to a tender, and SmartRooms Qatar usually issues quotations within one working day. Payment is by bank transfer, cheque or purchase order.