Minimum order quantity, pricing and customization depend on the selected model and project scope. Confirm applicable terms in a written quotation.
4.2-inch ESL with 400×300-pixel resolution
400×300 resolution — can display product images, full specs, and pricing
4-color BWRY for high-contrast sale tags and promotional displays
2.4GHz centralized update — manage entire store from one platform
multi-year battery life under normal retail use — actual replacement intervals depend on model and use
Confirm environmental suitability and protection rating for the selected model
Perfect for flagship phone displays, tablets, smart home devices
| Display Technology | E-Ink (Electronic Paper) |
| Screen Size | 4.2" |
| Resolution | 400×300 pixels |
| Display Colors | Black / White / Red / Yellow (4-color) |
| Communication | 2.4GHz SDR Wireless |
| Gateway Required | Yes — CEDAR V3 AP |
| Battery Life | Multi-year under normal retail use; actual life varies by operating conditions |
| Update behavior | Confirm for the selected model and system configuration |
| Operating Temperature | 0°C to +50°C |
| Protection Rating | Confirm against current documentation for the selected model |
| Material | ABS plastic housing |
* Specifications subject to change without notice. Contact us for the latest datasheet.
SLIM-420BWRY Electronic Shelf Label — 4.2" E-Ink electronic shelf label (ESL) featuring Black / White / Red / Yellow (4-color) 4-color display. Powered by 2.4GHz SDR (SLIM Series). CEDAR V3 AP (required). Battery life is multi-year under normal retail use; actual life varies with refresh frequency, LED use, temperature, radio conditions and battery batch. Protection rating: confirm against current documentation for the selected model. Operating temperature: 0°C to +50°C. Ideal for 3C flagship stores, electronics retail, appliance showrooms, smart home.
Tocvue ESL labels use ultra-low power E-Ink (electronic paper) technology — the same display used in Kindle e-readers. Battery-life estimates are multi-year under normal retail use. Actual life varies with refresh frequency, LED use, temperature, radio conditions and battery batch. No backlight needed — paper-like readability from any angle, even in direct sunlight.
This page covers the 2.4 GHz SLIM version, which uses a compatible CEDAR V3 AP for centralized label updates. The BLE basic workflow uses a smartphone app and does not require an access point. Confirm model, app and integration requirements for the project.
Tocvue ESL product information is listed by model. Contact us to discuss pricing and project requirements.
The SLIM-420BWRY is a 4.2-inch 2.4GHz ESL from Tocvue, a large-format price tag for main display and promotional zones. Part of the 2.4GHz SLIM series, it uses the CEDAR V3 AP gateway for centralized management across multiple store locations. The 400×300 pixel E-Ink screen supports 4 colors (Black/White/Red/Yellow) for compelling price presentation. With multi-year battery life under normal retail use, it is ideal for electronics departments, feature displays, and retail chain environments.
SLIM-420BWRY operates on the 2.4GHz SDR platform, connecting through a compatible CEDAR V3 AP for centralized updates to SLIM labels. Label quantity, coverage and store-management requirements depend on the selected models and site layout.
4.2-inch inch E-Ink screen supports Black, White, Red, and Yellow — making regular prices and promotional offers clearly distinguishable at a glance.
The current model card lists three replaceable CR2450 batteries for this label. Battery life is multi-year under normal retail use and varies with refresh frequency, LED use, temperature, radio conditions and battery batch.
Compatible SLIM labels use a CEDAR V3 AP for centralized updates. Confirm software, store-management and POS/ERP integration requirements for the project.
For refrigerated or high-moisture environments, confirm the selected label's protection rating and operating limits against its current model documentation.
Share the model, quantity and destination to confirm pricing, sample availability and project requirements.
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