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Global Pioneer in Electronic Labels

Global Pioneer in Electronic Labels

4.2 inch low power E-ink Epaper Labels Digital Price Tag For Food Shop

Categories	Rf 433Mhz Electronic Shelf Labels
Brand	Sertag Electronic shelf labels Manufacturer
Model	SETR0420N
Part NO.	SETR0420N
Outline	104.5mm(V) ×98mm(H)×14mm(D)
Weight	97g
Color Display	Black and White
Display Size	4.2 inch
Display Resolution	400(H)×300(V)
Communication Band	433MHz/868 MHz /915 MHz
Response Time	9S(Configurable)
Battery Life	Not less than 5 years，Replaceable
Battery	CR2450*3
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Update Time	Jul 4,2025

Detail Information

4.2 inch Low Power E-ink Epaper Labels Digital Price Tag For Food Shop

1. Low energy

2. Black and white

3. Cloud or local Server based options

4. 433MHz/868 MHz /915 MHzommunication

5. 400*300pixels full graphic, E-Paper displays

6. Perfect for the retails, warehouses, logistics management and meeting system

Model	SETR0420N
Screen Size	4.2 inch
Dimension	216x131x9mm
Display Resolution	400x300
Display Type	Bi-stable EPD (E-ink Display)
Display Color	Black, white
Appearance	Standard unit available with white frame
Unit Identifier Barcode	Recognized by scanner or labeling on back
Operating Temperature	0~50℃
Storage Temperature	-10~60℃
Battery Life	Not less than 5 years, replaceable
Replaceable Batteries	CR2450*3
Weight	239g
Communications	433MHz/868MHz/915MHz
Operating Voltage	2.4V~3.6V

Wireless Communication Technology

ØDisplay update rate: 30 minutes/30 thousands tags.

ØSuccess Rate: 100%.

ØCommunication Band: RF 433MHz.

ØCoverage Distance: 30-50 meters

ØDisplay Templates: Customizable, support for dot matrix (picture).

ØWorking Temperature: 0 ℃ ~40 ℃ or -25 ℃~15 ℃。

ØCommunication interaction: two-way communication, real-time interaction.

ØLife Time: 5 Years, battery can be changed.

ØSystem: Support format text, Excel files, data intermediate table, custom development and other methods.

System Architecture

Solution for Market

Real-time display of the latest price and price type of the supermarket background system and other related information

Network Architecture (Single Store Model)

Network Architecture (Multi-Store Model)

Why Choose Sertag's Electronic Shelf Labels ?

1. Improve the operation efficiency of commodities

2. In-depth evaluation of the value of each commodity and each location

3. Intelligent display of commodity information

4. Enhance the interaction between products and customers

Technical	Prdouct Function	Sertag	HS-COMPANY	HL-COMPANY	B-COMPANY
	Power Dissipation	5--8 years	5years	5years	5years
	Communication Frequency	Multichannel Industry SubG	2.4G	Single channel Industry Subg	2.4G
	Data security level	Encryption technique	No	No	No
	Cost	15% reduction	High	High	High
	Communication Distance	24M	12M	12M	8M
	Speed of communication	2000/hour	700/hour	700/hour	700/hour
	Battery Replacement	Simple, low maintenance cost	Complex, high maintenance cost	Complex,high maintenance cost	Complex,high maintenance cost
	Application	Retail ,logistics, medical treatment, storage	Retail	Retail	Retail

One-stop Electronic Shelf Label Provider