|  | The Milesight DS3604 IoT E-ink Display has been designed to provide a more efficient and sustainable solution for "going paperless." The large 4.3-inch screen has a low level of power consumption and includes long-capacity batteries, allowing the DS3604 to have up to 5 years of battery life. The three-pigment system includes both red and black print on a white background. Designed to be flexible, shatterproof and lightweight the DS3604 Bi-stable E-ink Display provides excellent readability with its 400 x 300 pixel display, so it can easily be read across nearly 180°s of viewing angle. Display and quickly update as required text, images and QR Codes using NFC for local or LoraWan for remote and multicast communication. With Pre-customised Templates, a smart phone app, an API toolkit and the ability to use IoT Cloud data management, the DS3604 smart display can be utilised in an endless number of ways; in offices, retail stores, libraries, hospitals, laboratories, warehouses and much more – all in real time. Features 
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Specifications
| Physical Characteristics | |
|---|---|
| Dimensions | Transceiver: 99 mm (w) x 87 mm (h) x 10.5 mm (d) | 
| Installation | Wall Mounting, with tape or screws | 
| Enclosure | White, ABS + PC | 
| Environmental Characteristics | |
| Operating Temperature | 0ºC to +40ºC | 
| Relative Humidity | 0% to 95% (non-condensing) below 25°C | 
| Ingress Protection | IP30 | 
| Power | |
| Battery | 3x CR2450 590mAh Lithium Cells | 
| Battery Life | Upto 5 years | 
| Display | |
| Type | 4.2-inch Black & White & Red E-Ink Screen | 
| Resolution | 400 x 300 Pixels (119dpi) | 
| Viewing Angle | 180° | 
| Refresh Rate | 16s (10 – 40°C) | 
| Communication | |
| NFC and Lorawan | With Milesight Toolbox App | 
| Lorawan Frequency | CN470/IN865/RU864/EU868/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) | 
| Part Number | Model Number | Description | RRP Inc GST | T % | 
|---|---|---|---|---|
| [A] Milesight DS3604 | ||||
| DS3604-915M | DS3604 | LoRaWAN Digital Character Display, 4.2 (107mm) 400x300 Black/Red E-Ink Display, 3xCR2450 Lithum Battery | $286.00 | C3 |