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What is the max recommended ESL price tags per gateway?

2026-07-30

There is no fixed upper limit on how many ESL labels a single gateway can manage, provided all tags fall within its effective signal coverage.

Each gateway (AP base station) delivers coverage across a circular area with a 20-meter radius. We normally suggest mounting the device on ceilings to avoid signal blockages from shelves, goods and wall structures. Proper high placement helps stabilize wireless transmission and lets the gateway connect with more in-store price tags reliably.

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What is the service life of the battery equipped with HPC015S WiFi infrared people counter?
Why is there a deviation between the data output by HPC015S Wi-Fi infrared counter and the actual on-site passenger flow during operation?
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Related questions
1
Does the HPC168 bus passenger counter device support HTTP POST to a custom URL to send count data in real time？What is the data format sent - JSON or hexadecimal string?

The HPC168's RJ45 interface uses the HTTP POST method for uploading and retrieving data. The server response must specify UTF-8 encoding and disable the Accept-Charset response header. All POST field values ​​are hexadecimal strings of the actual data.

Please refer to HPC168 protocol document for details, which contains complete parameter introductions and practical transmission examples for your integration testing.
2
Why is there a deviation between the data output by HPC015S Wi-Fi infrared counter and the actual on-site passenger flow during operation?
A certain margin of error in passenger counting data from infrared counters is inevitable. Since the device continuously accumulates statistical data, all minor errors will pile up over time. The longer the running duration, the larger the total accumulated error value, and the inaccuracy becomes especially prominent when calculating dwell number of people. Most customers primarily rely on this equipment for comparative trend analysis of passenger flow across identical periods.

If you require precise headcount statistics for people lingering within a designated area, we recommend switching to an AI people counter. AI people counter device identifies actual human figures within the target monitoring zone directly, delivering the highest counting accuracy.
3
What is the service life of the battery equipped with HPC015S WiFi infrared people counter?
HPC015S WiFi infrared people counter is equipped with the standard 2400mAh rechargeable battery. When the device works 12 hours per day and uploads data once every 10 minutes, the battery can theoretically last for 5 to 6 months. In addition, this device is compatible with USB power supply.
4
Can we update ESL price tags screens remotely from outside the supermarket? Or must we be connected to the same local network as the base station?

You can remotely update ESL digital price tags away from the supermarket by hosting our software on a cloud server and linking all on-site base stations to the internet.

For in-store local updates instead, install our software on an on-premise PC; the PC simply needs to share the same LAN with connected base stations to finish all screen updates directly.
5
Does infrared people counter require sufficient lighting to operate properly? Will dim or low-light conditions reduce its counting accuracy?
Infrared people counters can work normally without external lighting. Dim or low-light conditions will not reduce its counting accuracy.
However, sunlight, spotlights and other light sources contain infrared rays, which are likely to interfere with the device and cause counting errors. Turning off indoor lights only eliminates interference from indoor light sources, while interference from outdoor sunlight has a much more obvious impact.
6
Is the USD 888 software license is a one-time payment for permanent use on one server? Are there any monthly or yearly subscription fees for your ESL management software?

Our software is charged based on single activation for one server only. Once you complete the one-off payment of USD 888 and finish server activation, you gain permanent usage rights without recurring costs.

No monthly or annual subscription charges will apply afterward. All core built-in functions stay available long-term, and you won’t receive regular billing notices for ongoing software service or license maintenance.
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As a supplier with over 20 years of experience in the retail industry, we offer various intelligent solutions and products such as ESL (Electronic Shelf Label), EAS (Electronic Article Surveillance), and people counting (passenger counter) products.
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Contact person: Mark

Tel:+ 86-21-5235 3906
Fax:+86-21-5235 3906

Add: Room 5A12, 4th Floor, Building 5,
Lane 1343, Tongpu Road, Putuo District, Shanghai, China
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