Electronic shelf label is a kind of electronic display device with the function of sending and receiving information. Mainly used for the display of commodity price information of supermarkets, convenience stores, drugstores, 3C stores, etc. Today's electronic labels are available in a variety of screen sizes, such as 1.54, 2.13, 2.9, 4.2, 5.8, and 7.5. The electronic price tags commonly used in mid-term supermarkets are 1.54 inch, 2.13 inch, 2.9 inch and 4.2 inch. Let's introduce the four sizes of electronic price tags commonly used in supermarkets.

Communication protocol: ble5.0

Shell material: ABS plastic, transparent PC

Size: 36 x46x14.2mm

Screen type: dot matrix electronic paper screen

Screen size: 28.00x28.00 mm (1.54 in.)

Battery model: cr2450 (replaceable)

Battery life: 5 years (5 charges per day)

Working temperature: normal temperature (0 ℃ ~ 50 ℃)

Installation method: guide rail, bracket, ice plug, etc.

Characteristics: 1. Bluetooth 5.0 communication protocol, encrypted connection, data transmission;

2. The electronic price tag of less than 20000 pieces can refresh the price up to 30 minutes per time;

3. Dot matrix electronic paper screen, display content can be defined freely, not limited by language;

4. IP65 is waterproof and supports NFC and LED lamp functions.

Communication protocol: ble5.0

Shell material: ABS plastic, transparent PC

Size: 68 x 35x14.2mm

Screen type: dot matrix electronic paper screen

Screen size: 48.30x24.40 mm (2.13 inches)

Battery model: cr2450 (replaceable)

Battery life: 5 years (5 charges per day)

Working temperature: normal temperature, low temperature resistance (- 20 ℃ ~ 50 ℃)

Installation method: guide rail, bracket, ice plug, etc.

Characteristics: 1. Bluetooth 5.0 communication protocol, encrypted connection, data transmission;

2. The electronic price tag of less than 50000 pieces can refresh the price up to 10 minutes per time;

3. Dot matrix electronic paper screen, display content can be defined freely, not limited by language;

4. Low temperature resistant, IP65 waterproof, support NFC, LED lamp function.

Communication protocol: ble5.0

Shell material: ABS plastic, transparent PC

Size: 91 x41x14.2mm

Screen type: dot matrix electronic paper screen

Screen size: 66.90x29.10 mm (2.9 inches)

Battery model: cr2450 (replaceable)

Battery life: 5 years (5 charges per day)

Working temperature: normal temperature (0 ℃ ~ 50 ℃)

Installation method: guide rail, bracket, ice plug, etc.

Characteristics: 1. Bluetooth 5.0 communication protocol, encrypted connection, data transmission;

2. The electronic price tag of less than 50000 pieces can refresh the price up to 10 minutes per time;

3. Dot matrix electronic paper screen, display content can be defined freely, not limited by language;

4. IP65 is waterproof and supports NFC and LED lamp functions.

Communication protocol: ble5.0

Shell material: ABS plastic, transparent PC

Size: 99 x93.5x13.5mm

Screen type: dot matrix electronic paper screen

Screen size: 84.80x63.60 mm (4.2 inches)

Battery model: cr2450 (replaceable)

Battery life: 5 years (5 charges per day)

Working temperature: normal temperature (0 ℃ ~ 50 ℃)

Installation method: guide rail, bracket, ice plug, etc.

Characteristics: 1. Bluetooth 5.0 communication protocol, encrypted connection, data transmission;

2. The electronic price tag of less than 50000 pieces can refresh the price up to 10 minutes per time;

3. Dot matrix electronic paper screen, display content can be defined freely, not limited by language;

4. IP67 waterproof, support NFC, LED lighting, temperature and humidity sensing function.

China's electronic shelf label is an intelligent display device instead of handwritten price label. In order to adapt to different products and scenes, there are many different display sizes. The electronic price tags of Sertag in the cloud are 4.2 inches, 2.9 inches, 2.13 inches and 1.54 inches. Different sizes. Among them, the 4.2-inch large screen is suitable for prominently promotional tips and price tips in shopping malls, home furnishings, fresh food and other places. 2.13 "low temperature resistant, suitable for displaying commodity price in frozen area. Price indicators of conventional commodities in beverage and other fields.