| Brand Name | JIANHE | Product model | JH-QWESL |
| Type | Eink | Display Size | 3.7 inch |
| Resolution | 416*240 | Communicatietechnologie | 2.4Ghz SDR |
| Ingress Protection | IP65 | Viewing Angle | 175° |
| Working Voltage | CR2450x2 | Product Size | 104.1x58.11x9.1 mm |
| Display Color | Black/White/Yellow/Red | Operating Temp | 0 ~ 30ºC |



| Material | ABS/PC/PVC |
| Usage | Electronic Products |
| Technology | Bluetooth 5.0 |
| Features | NFC(Optional),LED Lights |
| Battery Lifetime | 5 Years |
| Color | White/Black/Red/Customized |
| Fixing Ways | Bracket/Ice Plug/Shelf Rail etc |
| Storage Temperature | -20ºC-60ºC |
| Transmitting Distance | 30-60 Meters |
Product Dimension Analysis
How the System Work
System Advantages



1. Warranty: 1 years
2. Free Replacement: If have inaccurate card within order, Jianhe Smart Card will provide free replacements.








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