Electronic Shelf Labels
2.9 inch ESL
The mainstream tag for grocery and pharmacy aisles — 95 × 45 × 13 mm on a standard shelf rail. Prices sync wirelessly from the POS database in 3–5 seconds, the 180° dot-matrix screen stays readable past aisle ends, and the CR2450 pack is rated 5 years at 5 refreshes a day — user-replaceable, so the tag starts a new lifecycle with every battery change.
Key facts
- Size95 × 45 × 13 mm
- Update speed3–5 seconds
- Price syncWireless · POS database
- Service life5 years (replaceable)
- Screen180° · dot-matrix e-paper
Why retailers choose it
- Wireless price sync from the POS database: a change at the till shows on the shelf in 3–5 seconds — no floor team, no batch printing.
- 95 × 45 × 13 mm keeps a readable price card on standard rails, and the 180° e-paper panel survives aisle glare.
- CR2450 × 4 (or one rechargeable cell), replaceable — rated 5 years at 5 refreshes a day.
- Same Bluetooth 4.2 line as the 2.1″ and 4.2″ tags: one POS integration covers three shelf formats.
- Waterproof and 0–50 °C rated, so the same tag moves between chilled and ambient gondolas without a hardware change.
- Recognition distance reaches ≥ 5 m and is adjustable, letting each store set its own radio boundary per aisle density.
Full specifications
Datasheet
The 2.9-inch tag is the middle format of the e-paper line — small enough for standard shelf rails, large enough for two lines of pricing plus a barcode or QR code. The table below lists the full specification, including the wireless sync path to the POS database.
| Model | 2.9-inch ESL |
| Communication protocol | Bluetooth 4.2 |
| Screen type | Dot-matrix electronic paper |
| Display angle | 180° |
| Size | 95 × 45 × 13 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) |
| Colors | Black/White (BW) · Black/White/Red (BWR) |
| Operating temperature | 0–50 °C |
| Environment | Waterproof · low-temperature resistant (aquatic/frozen areas) |
Grocery & Pharmacy
Twenty aisles, one broadcast: the 3–5 s sync replaces overnight tag swaps, back-room printers and the price-check walk that follows both.
Superstores & Malls
A 10,000-SKU wall re-priced from one PC — recognition reaches ≥ 5 m per tag, even in crowded gondola zones.
Partners & Distributors
One integration for the 2.1″/2.9″/4.2″ tags simplifies pilot quotes — spec one shelf format, quote the whole chain.
Samples in one week.
Tell us your fixture layout — we respond with a drawing and pricing within 48 hours.
