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4.2 Inch Double Side E Ink Label Information Board DM042FAB2/DM042TAB2
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4.2 Inch Double Side E Ink Label Information Board DM042FAB2/DM042TAB2

The 4.2-inch Bluetooth smart signage is available in three or four colors and can be customized for single or double-sided display. It can be used as a desk sign or a display board. Affordable and versatile, it's suitable for businesses, offices, schools, and supermarkets.
Number of views:
1000
Product serial number
621042RB1
Quantity
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iPhone · Android · Gateway

4.2" Color E-Paper Conference Table Card

Ultra-slim, wireless, dual-side independent display. Transform any desk sign into a dynamic smart nameplate — instantly.


 

Smart E-Paper
Conference Name Card

Display: 3- or 4-Color Option
Technology: Bistable — retains image with zero power consumption
Housing Material: Painted ABS / Aluminum alloy base
Dual-side independent display: Two sides, two messages
Bluetooth 5.0 & Wi-Fi ready — no cable constraints
Sync: Real-time wireless sync via smartphone or base station WEB portal

Key Features

dual side display

Dual-side Independent

Two sides show different information. No blue light, clean & sustainable e-ink technology.

dual control

Convenient Dual Control

Removable design. Control via mobile App or base station. Simple & flexible.

bluetooth 5.0

Bluetooth 5.0

Bidirectional transmission, no wiring needed, real-time updates within seconds.

Diverse Product Variants

Screen options: Black/White/Red/Yellow choices to meet visual needs of different meeting scenarios.

Model: DM042TAB2

Inclined Metal Base | ABS frame + Aluminum alloy base

Model: DM042FAB2

Curved Metal Base | ABS frame + Aluminum alloy base

Smart E-Paper Table Card Solutions

I. Mobile Convenient

APP scan for quick deployment and updates. Perfect for spontaneous meetings.

mobile app control

II. External Network

Gateway(WB01) + Table Cards · WEB remote control, manage anytime, anywhere.

external network deployment

III. Intranet Environment

Smart Server(SW01) + Gateway (WB02)+ Table Cards. Secure & stable, no external internet required.

intranet secure deployment

iOS & Android App Ready

 

Search for “Mohui” in App Store or Google Play to download. Instantly pair and manage your e-paper cards.

Via Phone App

Scan to install — effortless setup. Customize displays with images or templates.

Via Gateway

Centralized control, batch operations, offline capability, venue management.

Application Scenario

Desk name plate

Desk Name Plate

School signage

School Signage

Restaurant menu

Restaurant Menu

Conference signage

Conference Signage

Frequently Asked Questions

Q: I initially managed the desk nameplates using the APP. Now the number of nameplates has increased, and I want to manage them via the Gateway. Can the nameplates I already have be managed with the Gateway?

A: Yes, they can. The desk nameplates we provide support both the APP and Gateway — you do not need to replace them.

× Enlarged view

Beyond the Product: Our Four Guarantees

Keyword:
Bluetooth smart signage
Supermarket Digital Tags
Digital Price Label
4.2 inch 3 Color
4.2 inch 4 Color
We could not find any corresponding parameters, please add them to the properties table

PARAMETERS

PART NUMBER

DM042TAB2 ( 3 Color)

DM042FAB2(4 Color)

SIZE 4.2 inch
OUTLINE SIZE(mm)

94.7x120x30  Modular (Single-Sided 4-Color ) 

83x100x10.8 Baseless (Double-Sided 3-Color) 

94.7x120x30  Modular (Double-Sided 3-Color)

RESOLUTION 400x300 (119 ppi) 
 ACTIVE SIZE(mm) 63.6x84.8
COLOR

 Black, white, and red yellow E Ink display 

black, white, and red E Ink display 

WEIGHT

174±5g (Modular Double-Sided 3-Color)

105±5g (Baseless Double-Sided 3-Color)

154±5g (Modular Single-Sided 4-Color)

BATTERY  1500mAh Lithium Battery
COMMUNICATION METHOD Bluetooth 5.0 
 IMAGE TRANSFER METHODS

 Android/HarmonyOS APP,iOS APP,

WeChat Mini Program,

Web Management System

   TRANSMISSION DISTANCE 0-50m range (open space)
 CHARGING PORT  Type-C  
SHELL MATERIAL ABS frame + aluminum alloy base
 DEVICE UPDATES  Supports OTA firmware upgrades 
 BASE STAND Yes/No
 CHARGING PORT Charging Port

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