IoT E-ink Display
IoT E-ink Display
Going Paperless for More Efficient and
Sustainable Operations
- Bigger E-ink Screen Featuring Red/White/Black Color Display
- Customized Templates in Multiple Modules and Languages
- Low Power Consumption with up to 5 Years Battery Life
- Open API and a LoRaWAN® Button Enable Various Applications
- Support Local and Remote Control for Bulk Deployment
Make Business Smarter and Greener with E-ink Technology

4.2-Inch Screen with Three Pigment Ink System
E-Ink digital paper is a form of ink made from micro-particles in a thin film layer.
- Flexible, Shatterproof and Light 4.2 Inches Screen
- Bi-stable EPD (E-ink Display) Black, White and Red Colors
- 400 × 300 Pixels Display with Near 180° Viewing Angle
Achieve Energy-Saving Operations Effortlessly
The e-ink display is bistable, which allows the image on the e-ink screen to be retained even when all power is removed.
- Can Be Reused with No Paper Required
- Does Not Consume Any Battery When Left Idle
- Avoid Disturbing Light Pollution in the Environment
Customized Templates
for the Scenarios
You Most Frequently Employ
- Text, Image and QR Code Are Offered and Customizable
- Multi-Functional Button Featuring LoRaWAN® Technology Optional
- Pre-customized Templates Are Flexible for Different Scenarios,
Such as Workplace, Hotel, Hospital, Retail Store, Etc.
150 Languages Available for User-Friendly Usage
Up to 150 Languages Including English, Spanish, French, Japanese, Portuguese, Chinese (Simplified & Traditional), etc. (Exclude Hebrew, Arabic & Thai).
* Contact Milesight team to check the languages supported
Install to Unlock a Greener and More Productive Workplace
Two factory prefabricated templates are offered by Milesight, hot desk reservation and workplace display signage, which are perfect for your turnkey smart office solutions.
- Clearer Booking System for Employees
- Real-Time Information for Building Managers
- Occupancy Metrics for Facility Managers
Provide API for Easy Software Integration
It’s time to turn technology component into a digital signage solution that meets your specific need.
- Clearer Booking System for Employees
- Real-Time Information for Building Managers
- Occupancy Metrics for Facility Managers
Multi-Year Battery Operation
DS3604 has a battery life of up to 5 years
*3 × 590mAh CR2450 Lithium Batteries** The battery life will be shortened if the device works within 0~10°C for a long time.
Practical and Easy Management and Maintenances
- Support Multicast Feature for Remote Configurations in Bulk
- Remote and Local Quick Modification of the Displayed Content
The Waves of Modern Operations in Various Scenarios
- Offices
- Library
- Laboratory
- Hospital
- Retail Stores
- Warehouses

Energy Efficiency Solution
Everything from the way we operate to what we consume is moving toward more energy-efficient ways. Check how Milesight sensing products can help you.

LoRaWAN® Based
- Penetrating Signals: data transmission range up to 2 km in urban areas and 15 km in rural areas
- High Compatibility: compliant with standard LoRaWAN® gateways and network servers
Cloud Data Management
Milesight IoT Cloud
Coming Soon
Data Visualization Dashboard:
All figures in a glance
Automatic Triggers:
Interactive collaboration with Milesight IoT sensors to realize scene-based automation
Regular Reports & Real-Time Alerts:
Data-based insights
Android & iOS App:
Manage devices at your fingertips
Switching On/Off & Configuring the Devices Wirelessly
1st Step |
2nd Step |
3rd Step |
Flexible Installation
![]() |
Wireless Transmission | Technology | LoRaWAN® |
Frequency Band | CN470/IN865/EU868/RU864/US915/AU915/KR920/AS923-1&2&3&4 | |
Tx Power | 16 dBm (868 MHz)/22 dBm (915 MHz)/19 dBm (470 MHz) | |
Sensitivity | -137dBm | |
Mode | OTAA/ABP Class A/Class B ( Default OTAA Class B) | |
E-ink Screen | 4.2-inch Black & White & Red E-Ink Screen | |
Resolution | 400 x 300 Pixels | |
DPI | 119 | |
Viewing Angle | 180° | |
Refresh Rate | 16s (10 – 40°C) | |
Display Character | Latin alphabet, English alphabet, Cyrillic alphabet, Greek alphabet, Chinese character, Japanese character, and Hangul | |
Display Languages | Support Displaying up to 150 Languages Including English, Chinese (Simplified & Traditional) , Spanish, French, Japanese, Portuguese, etc. (Exclude Hebrew, Arabic & Thai) | |
Operation | Button | 1 x Reset Button (Internal) + 1 x Screen Button |
Buzzer | 1 x Buzzer | |
Configuration | NFC Configuration via Mobile App | |
Physical Characteristics | Power Supply | 3 × 590mAh CR2450 Lithium Batteries |
Battery Life | Around 5 Years (Class A Mode + 1 Screen Refresh per Day) | |
Around 1 Year (Class B Mode + 12 Screen Refreshes per Day) | ||
Operating Temperature | 0°C to +40°C (0℉ to +104℉) | |
Operating Humidity | 0% to 95% (non-condensing) below 25°C/77℉ | |
Ingress Protection | IP30 | |
Color & Material | White, ABS + PC | |
Dimension | 99 × 87 × 10.5 mm (3.90 × 3.43 × 0.41 in) | |
Installation | 3M Tape Mounting, Wall Screw Mounting |
Downloads
![]() |
DS3604 Datasheet |
![]() |
DS3604 User Guide |