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Q: Do you have WhatsApp or Teams for communication?A: We provide electronic shelf labels technical support via Microsoft Teams. After payment, we will set up a technical group with our engineers.

Q: Can a single device (such as a smartphone or Raspberry Pi) update multiple Bluetooth ESL tags on a scheduled basis without using a base station?A: No. Currently, Bluetooth digital tags can only be updated through direct point-to-point communication with a smartphone. For scheduled or automated updates, a custom gateway/base station application must be developed to receive update tasks from a backend system and distribute them to the tags.

Q: Do the Bluetooth ESL tags support the Bluetooth SIG ESL standard (Service UUID 0x1857 / PAwR)?A: No. The tags use Sertag's proprietary Bluetooth Low Energy (BLE) communication protocol rather than the Bluetooth SIG ESL standard profile (Service UUID 0x1857 / PAwR).

Q1: Does the SDK of Bluetooth electronic shelf label accept price or text data fields for the tag to render, or do I need to generate and send a complete bitmap image? A1: The SDK is responsible only for transmitting image data to the tag. Image generation and rendering are not handled by the SDK. Therefore, users need to create the bitmap image on their own system and then use the SDK to transfer the generated image to the electronic label.

Q1: Do you provide a public API (REST, MQTT, or other) to control functions such as label updates, assignment, and device status? A1: Yes, we provide API interfaces to support system integration. Through our APIs, you can manage label updates (including price, text, and images), handle label assignment and binding, and monitor device status. This allows seamless integration with your existing systems. Q2: Do your ESL systems support a local/on-premise server setup, or is cloud SaaS mandatory? A2: We offer two versions of our ESL management system: a local (on-premise) server solution and a cloud-based SaaS platform. Customers can choose the option that best fits their IT infrastructure and data security requirements. For projects with higher data control or internal network preferences, we typically recommend the local server deployment.Q3: Can the ESL system operate entirely locally during normal operation, without requiring any cloud connectivity, external servers, or internet access?A3: The ESL system can operate locally.Q4: Can you provide a complete Electronic Shelf Label (ESL) system, including hardware, software, and integration support?A4: Yes. We can provide a complete ESL solution, including electronic shelf labels, base stations (gateways), management software, and installation accessories such as rails, clips, and mounting brackets. For system integrators, we also offer API interfaces to facilitate integration with local POS, ERP, WMS, or other third-party systems. In addition, we provide technical documentation and support to help ensure a smooth deployment and integration process.Q5: What is the battery life under frequent updates (e.g., 5/15/30 times per day)?A5: At 4 updates per day, battery life of the 3.2eRetail System electronic shelf label is 5 years. More frequent updates will reduce lifespan; we can provide specific estimates for your scenario.Q6: What Are the Approximate Price and MOQ for Electronic Shelf Labels?A6: Our standard quotation is based on a package that includes one base station and one electronic shelf label. Pricing is volume-based and varies according to your order stage, such as:Samples: around 10 digital labelsPilot projects: 200–300 digital labelsDistributor orders: 2,000+ digital labelsFor a detailed quotation, please contact us at sales@sertag.com. We will provide a customized price list based on your project requirements.Please note that distributor partnerships are subject to minimum order quantity (MOQ) requirements, which are specified in the distributor agreement.

Q1: What material is used for this 7.3 inch Wi-Fi eletronic shelf label casing? A1: The outer casing of the device is made of durable plastic, providing a lightweight structure while ensuring reliable protection for the internal components. Q2: Does the 7.3 inch ESL have an IP rating for water or dust resistance? A2: No, this ESL does not have an IP certification such as IP65 or IP67 and is not designed for waterproof use. It is recommended for indoor environments. Q2: Can the 7.3 inch e-ink display label be used in portrait orientation? A3: Yes. The e-ink screen supports both portrait and landscape orientations, allowing flexible installation depending on the application scenario.

Q1: How are eRetail3.2 system electronic shelf labels base stations accessed and configured (e.g., web interface, local tools, IP access)? Can all management tasks be completed locally?A1: The eRetail3.2 system 2.4G electronic shelf labels base stations need to be configured by us. First, the ESL base station connects to a router with internet access. We will retrieve the base station in the background and then configure it for you. This requires you to provide the software server IP address and the base station port.Q2: Can we use an online interface to UPLOAD bulk data such as google doc or tables?A2: Yes. You can upload product data to our website using an Excel document, and the system can automatically retrieve and synchronize the product data file from the address provided.

Q1: Will replacing the ESL battery affect the product warranty?A: Within the warranty period, replacement due to human error will affect the warranty.Q2: Do you provide a warranty for the device? A: Within the warranty period, non-human-caused damage will be repaired or replaced free of charge.

Electronic shelf labels can be updated via API. Electronic shelf labels communication protocol is 2.4G.

Yes, the electronic shelf label software is available in English and more than 10 other languages, and can switch languages by itself.

Q: How many electronic shelf label access point we need for the grocery store? What is the covered area by each access point? should it be connected to the internet always? or only local network? A: The number of electronic shelf label access point used is related to the area of the store. In actual use, consider the field environment and other factors such as the communication range of the AP, A circle with a radius of 12 meters Both are OK ,if you install local version system, you need to choose local network.

Electronic shelf tags can be updated via API. Electronic shelf labels communication protocol is 2.4G.

 Of course. The status of the communication is in the electronic shelf labels system communication log in the data query.

You can connect to the base station through the direct connection method to update the information of the electronic price tag. The specific steps are: 1. Connect the LAN port of the POE power supply and the computer network port 2. Connect the POE port of the POE power supply and the network port of the base station 3. Plug in the power supply 4. Then share the network according to the "4.0 Base Station Simple Configuration User Manual" document, and use the configuration tool to configure the base station for normal use.