ST5502S

A 55-inch 4K display for scheduled messages and shared content

The BenQ ST5502S is a 55-inch display built around a 3840 × 2160 IPS panel with 400 nits typical brightness and a 1,300:1 typical contrast ratio. Its 9 ms response time and 8-bit colour depth, with a 72% NTSC colour gamut, keep text notices, timetables and promotional loops clear at a distance. The screen runs Android 8.0 on a quad-core processor with 3GB of memory and 16GB of storage, so playback and wireless sharing happen on the display itself rather than on a separate media box.

Because the panel can be used in landscape or portrait, one model covers a wide corridor wall as well as a tall lift lobby or a narrow wayfinding column. The display is rated for 18 hours of operation a day, seven days a week, and its typical backlight life is listed at 30,000 hours.

Connections, playback and control

The display offers two HDMI 2.0 inputs, two USB-A 2.0 ports, one VGA input, one 3.5 mm PC audio input, one 3.5 mm earphone output, a microSD card reader, a 10/100 Mbps Ethernet port and an RS-232 port listed as one in and one out. It has no HDMI output, so it cannot pass a signal on to a second screen. Content can be played from a USB stick through the built-in media player, and an IR sensor and remote control come with the unit.

This model has no built-in Wi-Fi or Bluetooth, so networked scheduling depends on the wired Ethernet connection. X-Sign Broadcast handles broadcast messages and DMS handles device management. The two 10 W speakers suit short announcements in a corridor or reception area.

Where it fits across Qatar

• Private school in Al Wakrah: a corridor screen showing the daily timetable, sports fixtures and parent notices, updated from one office and scheduled for break times.
• Clinic waiting area in Msheireb: a portrait-mounted panel near the reception desk showing queue information and health awareness messages in Arabic and English.
• Office reception in West Bay: a landscape screen in the lobby that welcomes visitors, kept in an air-conditioned space and away from direct sun through glass.

Planning the installation and power

The panel measures 1241.8 × 712.6 × 63.5 mm and weighs 16.6 kg, or 22 kg packed for shipping. It has a VESA 400 × 400 mm mounting pattern, but no wall mount is listed with it, so the bracket must be specified separately. A free site survey lets the installer check the wall, fixings and mounting height before the unit arrives.

Heat is the main planning point in Qatar. The listed operating range is 0°C to 40°C with 10% to 80% relative humidity, non-condensing. Summer temperatures can pass 45°C, so the display should sit in an air-conditioned room, away from direct sunlight, unshaded glass and heat-producing equipment. The power input is AC 100-240V at 50/60Hz, which covers Qatar's 240 V, 50 Hz supply. Typical consumption is 134 W and standby is under 0.5 W. The model is listed as ENERGY STAR.

Ordering from SmartRooms Qatar

SmartRooms Qatar supplies the ST5502S and delivers to all eight municipalities of Qatar, with professional installation and free site surveys. Quotations are usually issued within one working day. Schools, government bodies and other organisations can order against an LPO or a Monaqasat tender, and pay by bank transfer, cheque or purchase order. The product is covered by the manufacturer's warranty. To request a quote, send the quantity, room type, preferred orientation and mounting location for each screen.