Smart 18.5/21.5-Inch Touch Display for Electronic Door Numbers

• Customization: Available
• Application: Indoor AD Player, Bus/Car AD Player, Semi Outdoor AD Player
• Screen Size: 20-30 Inches
• Type: Touch Screen Panel AD Player
• Touch Screen Type: Capacitive
• Screen Technology: LCD
• Interface Type: 485
• Remote Control: Without Remote Control
• OS: Android
• Customized: Customized
• Transport Package: Box
• Trademark: QH
• Origin: Guangdong
• HS Code: 8521909090
• Package Size: 55.00cm * 35.00cm * 7.00cm
• Package Gross Weight: 6.000kg
• Lead Time: 2 days (1 - 10 Pieces) ; To be negotiated ( > 10 Pieces)

Product Description

Serial number	project		content	remarks
1	structure	Shell	Pre tempered glass+aluminum profile frame+sheet metal shell
		Protection panel	Tempered glass
		Wall mounted/floor standing	Wall mounted
2	Basic plan	operating system	Android 11
		CPU	RK3288, quad core	Motherboard options: RK3188, RK3288, RK3568
		CPU clock speed	1.8GHz
		Memory	DDR3 2G
		Built in storage capacity	EMMC 8G
		horn	8Ω2W	built-in
		network	Supports WiFi and BT
		Interface	I/O:2*USB,
			Scalable 2 * USB
3	Main screen	LCD screen	BOE	Alternative options:  Innolux, BOE
		size	21.5 inches
		Screen ratio	16:9	Height: Width
		display mode	ASV, normally black display, transmissive
		Pixel spacing	0.17925 × 0.17925 mm	Horizontal * Vertical
		resolving power	1920*1080
		brightness	350 cd/m²
		viewing angle	85/85/85/85 (left/right/up/down)
		contrast ratio	1000:1
		Color count	16.7M
		Lamp Lifetime	Over 50000 hours
		Working environment temperature	0-50 degrees Celsius
4	camera	camera	100W
5	Capacitive touch	Touch point count	Ten o'clock
		Touch accuracy	±2mm
		response time	25ms~30ms
		Recognizable objects	Finger or specialized touch pen
		transparency	≥85%±2%
		temperature range	Working temperature: -10 ºC~60 ºC
6	Voltage and power	input voltage	POE interface power supply 48V max
		Whole machine power	15W

•  Installation
• This equipment must be installed, disassembled, and repaired by professional technicians;
• It must be installed in a location that is easy to clean, maintain, and ventilated for heat dissipation;
• Prohibited from being placed in harsh environments such as humidity, liquid droplets, highly corrosive gases, and flammable gas leaks;
• Prohibited from being placed in areas directly affected by strong electricity, strong magnetic fields, strong radiation, etc;
• Avoid locations that are prone to noise and vibration;
• Avoid harsh conditions such as heavy oil fumes, strong sandstorms, humidity, direct sunlight, or areas with high temperature heat sources;
• Avoid direct sunlight and backlit viewing;
• It is prohibited to place it in other places that may affect the normal operation of the equipment and pose a danger;
•  Placement
• Do not place the device in an unstable or easily tilted place;
• Do not insert any items into the device;
• Do not place heavy objects on the equipment to avoid excessive pressure, which may cause damage to the equipment and prevent it from functioning properly;
•  Power Supply
• Please check and ensure that the voltage value on the nameplate of the rear shell of the entire machine matches the main supply voltage value;
• Please ensure that products with a power supply greater than the safe voltage are installed or placed out of reach of children;
• Please unplug the power cord during thunderstorms or lightning weather;
• Please unplug the power plug when there is no one indoors or when not in use for a long time;
• Please avoid physical or mechanical damage to the power cord;
• Please use a dedicated power cord and do not modify or extend the power cord;
• Please check and ensure that the grounding wire of the AC power line is connected.
• Screen
• Please turn off the device and unplug the POE plug before cleaning;
• Please wipe the screen with a flexible, dust-free, and dry cloth;
• Do not use water or spray type cleaner to clean the screen of this machine;
• Do not display high brightness images still on the screen for a long time.
• Visual Range
• The optimal viewing distance is 3-4 times the diagonal length of the screen;
• The optimal viewing angle is within 178 degrees of the screen up, down, left, and right.
• Common troubleshooting methods
  A: No images or sounds
• Confirm if POE power supply is normal;
• B: There are images but no sound
  (1) Click on the screen touch to enter Settings - Sound, and check if the volume has been turned to the minimum.
   

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