In the chain convenience store industry, the 24 hour operation characteristic determines that power monitoring must meet three core requirements: “uninterrupted operation, accurate data, and remote control” — especially for leading brands like Lawson China, which has over 6000 stores covering more than 200 cities. They face the challenge of decentralized management due to the distance between stores exceeding 50 km, leading to low efficiency in manual inspections, and must also deal with the real pain points of “power outages affecting revenue and meter reading errors causing billing disputes“.

Traditional power monitoring solutions are no longer suitable: manual meter reading requires 3 people per week to cover a province, with a data error rate exceeding 3%, and over 10 complaints from merchants each year due to electricity billing issues; modifications to distribution boxes require shutting down equipment, with an average loss of over 2000 yuan in revenue per outage; and construction quality relies entirely on on-site supervision, with wiring errors needing a second visit for rectification.

The Ankerui ADW300 IoT meter, with its deep adaptability to the chain convenience store scenario, has become the “preferred solution“ for the nationwide power transformation of Lawson China. As of now, the ADW300-HJ-DXX-4G solution has covered over 3000 stores in key areas such as Shanghai, Guangdong, Liaoning, and Sichuan, completely solving the pain points of traditional power management, allowing the scattered power data of stores to be “gathered, accurately calculated, and well managed“.

1. Lawson’s Power Management Pain Points: The “Common Challenges“

As a year-round operating chain convenience store, Lawson’s power usage scenario has distinct industry characteristics, leading to three core pain points:

1.Scattered stores + 24 hour operation, installation transformation is a “dilemma“

Lawson stores are mostly located in community, business district, and transportation hub core points, and operate 24 hours continuously. Traditional meter installation requires shutting down the distribution box, interrupting lighting and refrigeration equipment, with each construction taking at least 2 hours, directly affecting product freshness and customer experience. Some stores even delay transformation plans due to concerns about revenue loss.

2.Low efficiency in manual meter reading + high error rates, frequent billing disputes

Previously, Lawson used a “regional specialist to read meters store by store” model, requiring a team of 3 people to spend 1 week to complete data aggregation, and manual records often resulted in “missed readings and incorrect readings“, with a data error rate exceeding 3%. Especially during the peak summer electricity usage period, the power consumption of refrigeration equipment in stores surges, leading to discrepancies between meter reading data and actual power usage, resulting in over 10 billing disputes each year, consuming labor costs and affecting brand reputation.

3.Difficulty in verifying construction quality + slow maintenance response, making it hard to provide early warnings for hidden dangers

Store renovations involve different construction teams, and the quality of wiring relies entirely on on-site supervision checks. Some stores experience abnormal meter readings due to reversed phase sequences or loose transformers, requiring on-site inspections only after merchant complaints, with an average fault response time exceeding 24 hours, during which additional power losses or equipment damage risks may occur.

2. ADW300 IoT Product Solution: Targeted Solutions to Three Major Pain Points

In response to Lawson’s scenario requirements, the ADW300 provides solutions from three dimensions: “installation convenience, data accuracy, and controllable maintenance“: achieving “no work interruption during transformation, zero measurement error, and early warning of hidden dangers“:

1.Quick installation without power outages, zero revenue loss

The ADW300 adopts a “split-core current transformer + piercing power take-off” dual no-power-off design: the split-core current transformer can be directly placed on the existing cable without disassembling it to complete current collection, compatible with cables of 10-36mm diameter in Lawson’s distribution boxes; the voltage power take-off uses a piercing clamp design, which does not require disconnecting the existing circuit, only needing to fix the piercing clamp on the live wire to obtain power. The installation time for a single store is compressed from the traditional 2 hours to 30 minutes, and there is no need to shut down refrigeration or lighting equipment throughout the process, perfectly avoiding revenue loss.

2.4G direct transmission + precise measurement, reducing billing disputes by 80%

The meter is equipped with a built-in 4G universal module, supporting directional SIM cards and public network cards. The real-time power data (voltage, current, active power, peak and valley energy, etc.) of Lawson stores can be directly transmitted to the headquarters smart management platform without relying on local gateways. The measurement accuracy reaches level 1, with a data error rate controlled below 0.5% , and the platform automatically generates “single store – regional – national” three-level energy consumption reports. Merchants can view detailed power usage through a dedicated account, transforming electricity billing from “manual reconciliation” to “data reconciliation“, with billing disputes reduced by 80% year-on-year.

3.Phase sequence detection + remote maintenance, with hidden danger response speed increased by 3 times

To address the difficulty in verifying construction quality, the ADW300 has upgraded its phase sequence detection function. After store renovations, there is no need for manual on-site checks; headquarters can view the phase sequence status of each meter through the platform. If a reverse connection issue is detected, real-time wiring suggestions can be pushed, reducing the construction rework rate by 60%. At the same time, the meter is equipped with 4 NTC temperature measurement wires, which can monitor the temperature of the wiring inside the distribution box in real-time. When detecting current overload or temperature exceeding the threshold (e.g., 60℃), the platform will immediately trigger an audible and visual alarm and send SMS and APP push notifications to the regional maintenance specialist, reducing hidden danger response time from 24 hours to 8 hours. To date, over 120 early warnings have been issued for overloads of refrigeration cabinets, loose wiring, and other hidden dangers.

3. Core Advantages of ADW300 for Chain Convenience Stores: More Than Just “Measurement“

The successful implementation of the Lawson case stems from the deep adaptability of the ADW300 to the chain convenience store scenario. These advantages are also applicable to similar brands such as FamilyMart and 7-Eleven:

1.Flexible installation, adaptable to various spaces: using a 35mm rail standard design, whether in office building distribution boxes, narrow meter boxes in shops, or embedded equipment rooms in hotels, it can be easily deployed. It supports both three-phase four-wire and three-phase three-wire connection methods, combined with magnetic power take-off and piercing power take-off modes, allowing for installation without power interruption on-site — no need to shut down shops or office equipment, perfectly avoiding business losses during installation and shortening the installation cycle.

2.Strong environmental adaptability, stable operation without interruption: Equipment such as elevators and transformers in commercial buildings generate strong electromagnetic interference, and there are significant temperature differences in different areas (low temperatures in underground garages, high temperatures in rooftop equipment rooms). The ADW300 has an IP50 protection level (without antenna status) and can operate stably within a temperature range of -25℃~60℃, with voltage overload capacity reaching 1.2 times for continuous operation, 2 times for 1 second, and current overload capacity reaching 1.2 times for continuous operation, 10 times for 1 second, easily coping with the challenges of complex power environments in buildings.

3.Multi-communication compatibility, seamless integration with building platforms: supports various wireless communication methods such as 4G, Wi-Fi, LoRa and others, without the need to build additional transmission networks, allowing direct access to existing smart management systems in buildings. Property management can achieve global monitoring through a computer platform, shop operators can view their own power data through dedicated accounts, and hotel management can monitor room power usage in real-time, truly achieving “hierarchical management and data interoperability“, with maintenance response speed improved by 80%.

4. Conclusion

For Lawson China, the ADW300 IoT meter not only solves the pain points of traditional power management but also promotes its power management from “decentralized manual” to “centralized intelligent“: the real-time aggregation of data from over 3000 stores has improved billing efficiency by 50%, reduced maintenance costs by 40%, and achieved refined energy consumption optimization. The value of this solution is also applicable to various chain retail scenarios — whether it is convenience stores, chain supermarkets, or brand specialty stores, as long as they face the demand for “scattered stores, uninterrupted operation, and precise measurement“, the ADW300 can provide a “plug-and-play, precise and controllable” solution.

In the future, the ADW300 will continue to upgrade in response to new demands in the chain retail industry, such as integrating with store POS systems to achieve “power – sales” data linkage and adding identification of abnormal power usage behaviors (such as unauthorized high-power devices), further assisting chain brands in reducing costs and increasing efficiency, becoming the “digital cornerstone“ of smart retail transformation.