Electronic Shelf Labels
2.1 inch ESL
The smallest tag in the D.F.S range — 72.5 × 36 × 15 mm on a standard shelf rail. Prices refresh in 3–5 seconds over Bluetooth 4.2, and one CR2450 × 4 battery pack is rated 5 years at 5 updates a day, in black/white or black/white/red. Recognition reaches ≥ 5 m and is adjustable, so a single walkthrough re-prices the whole aisle instead of one tag at a time.
Key facts
- Size72.5 × 36 × 15 mm
- Update speed3–5 seconds
- Service life5 years (5 updates/day, replaceable)
- Screen180° · BW / BWR
- Recognition≥ 5 m (adjustable)
Why retailers choose it
- 3–5 s updates plus a ≥ 5 m adjustable recognition range — re-price a full aisle in one walkthrough, not one overnight shift.
- CR2450 × 4 button cells or one rechargeable cell, user-replaceable and rated 5 years at 5 refreshes a day.
- 180° display angle and 0–50 °C rating, with a waterproof build for chilled aisles — the tag follows the stock, not the weather.
- BW (black/white) or BWR (black/white/red) screens: red for promo lines, monochrome for everyday shelf cards.
- Displays multiple languages, barcodes, QR codes and pictures — useful for compliance text, quick promos and QR links.
- A low-power NFC variant is available, rated up to 12 years of service life for installations where battery swaps are costly.
Full specifications
Datasheet
Price accuracy is the operating cost nobody budgets for — paper tags are re-checked all week, this one re-sends itself in 3–5 seconds. The table below covers the full 2.1-inch specification, including the BW/BWR screen options, the battery service-life basis and the low-power NFC variant.
| Model | 2.1-inch ESL |
| Communication protocol | Bluetooth 4.2 |
| Screen type | Dot-matrix electronic paper |
| Display angle | 180° |
| Size | 72.5 × 36 × 15 mm |
| Price update | 3–5 seconds |
| Recognition distance | ≥ 5 m (adjustable) |
| Display ability | Multiple languages, barcodes, QR codes, pictures |
| Battery | CR2450 × 4 button cells or rechargeable × 1 |
| Service life | 5 years (refreshed 5 times a day, replaceable) |
| NFC option | Low-power NFC variant rated up to 12 years |
| Colors | Black/White (BW) · Black/White/Red (BWR) |
| Operating temperature | 0–50 °C |
| Environment | Waterproof · low-temperature resistant (aquatic/frozen areas) |
Grocery & Pharmacy
Standard rails across 20 aisles: 3–5 s updates make the shelf audit a morning status check instead of an overnight shift of loose paper cards.
Superstores & Malls
Price walls of 10,000+ SKUs stay legible in every zone, and a ≥ 5 m per-tag recognition keeps the fastest-moving shelf faces current.
Partners & Distributors
Bluetooth 4.2 with an adjustable range is a retrofit-friendly pitch for integrators — no cabling, no shelf-side mains.
Samples in one week.
Tell us your fixture layout — we respond with a drawing and pricing within 48 hours.
