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


Excellent Readability on
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
NFC Configuration
Switching On/Off & Configuring the Devices Wirelessly
1st Step
Install the
Milesight ToolBox
2nd Step
Enable NFC and run ToolBox,
then attach your phone to the device
3rd Step
Verify the password
and start configuring
Flexible Installation
Fixed by 3M Tape
Fixed by Screws
Specifications | Documents
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 |