433MHz 4.2inch E-ink ESL Solution Low Power ESL Electronic Shelf Label for Hospital

Categories	Digital Tags For Healthcare/Hospital
Brand	Sertag Electronic shelf labels Manufacturer
Model	Electronic Shelf Label SETR0420R
Display Size	4.2 inch
Communication Band	433MHz/ 868 MHz/ 915 MHz
Response Time	9s (Configurable)
Dimension	104.5mm(V) ×98mm(H)×14mm(D)
Display Resolution	400(H)×300(V)
Battery	CR2450*3
Display Color	Black, white and red
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Update Time	Jul 16,2025

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4.2inch E-ink ESL Solution Low Power 433MHz ESL Electronic Shelf Label for Hospital

✔ E-Ink Display

High-contrast, easy-to-read screens with minimal power consumption.

✔ Server Options

Cloud or local Server based options.

✔ Long Battery Life

Lasts up to 5 years without the need for frequent replacements.

✔ Wide range of applications

Perfect for the retails, warehouses and logistics management.

✔ Real-Time Updates

Communication band is 433 MHz. Instantly change prices and display information across all labels remotely.

Part Number	SETR0420R	Display Size	4.2 inch
Communication Band	433MHz/ 868 MHz/ 915 MHz	Response Time	9s (Configurable)
Resolution	400×300	Dimension(mm)	104.5×98×14
Battery	CR2450*3	Display Color	Black, white, red
Operating Temperature	0~50℃	Storage Temperature	-10~60℃
Operating Humidity	Less 75%	Operating Voltage	2.4V~3.6V
Battery Life	5 years (refresh time≤2/day), Replaceable

4.2inch E-ink ESL Solution Low Power 433MHz ESL Electronic Shelf Label for Hospital Feature

● Low Energy Consumption: Ensures minimal power consumption, significantly reducing energy costs for your store.

● Visible from 180°: Enjoy the advantage of clear visibility from virtually any angle.

● Scannable QR Codes and Images: Enhance customer engagement and convenience with scannable QR codes and images on our digital price tags.

● Flashing LED Lights: For added attention or special promotions, our digital price tags can be equipped with flashing LED lights.

● CE & RoHS Certification: This certification ensures that our digital price tags meet European safety standards and are free from hazardous materials, assuring both quality and safety.

433MHz E-ink Electronic Shelf Label — System Architecture