🔹Screen Size: 4.2 inch
🔹Screen Colour: Black, White, Red, Yellow 4 Colours
🔹Screen Type: Dot-matrix Electronic Paper
🔹Resolution: 400 × 300
🔹DPI: 119
🔹Storage Capacity: Support storing up to 6 images
🔹Indicator: RGB Tri-color LED, 7-color lighting adjustable
🔹Outer Dimension: 96.9×86.9×10.4mm
🔹Weight: 68.9g
🔹Housing Material: PC Shell
🔹Shell Color: White, Customizable multi-color
🔹Transmission Mode: BLE 5.1 Bluetooth + NFC Dual Mode
🔹Battery: 2pcs CR2450 Batteries, Total 1160mAh
🔹Static Current: 11.5uA Average
🔹Working Current: 4.75mA Average
🔹Bluetooth Transmission Distance: ≤10m (Mobile Phone Direct Connect) / ≤20m (Bluetooth Base Station)
🔹Working & Storage Temp: 0℃ ~ 40℃
🔹Working & Storage Humidity: 45% ~ 70%
This 4.2-inch four-color dot matrix ePaper tag with BLE5.1 + NFC dual communication breaks single usage limitation, supporting three core application fields: supermarket retail shelf labels, catering electronic table signs, and medical ward bedside identification tags.
Adopting black/white/red/yellow four-color ink display, it can highlight warning text, price discounts and patient nursing reminders with striking red & yellow colors. Equipped with RGB tri-color LED indicator and local storage for 6 pictures, the white customizable PC casing fits clean medical ward environment and commercial retail space. Powered by dual CR2450 batteries with ultra-low static power consumption, it supports three update modes: mobile Bluetooth 10m editing, base station 20m cloud batch control, and NFC on-site quick refresh, providing intelligent digital identification solutions for retail, catering and medical industries.
