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  6. [For Work Sites] WBGT Value Displayed in Three Colors + Visualization Product for Heat Stroke Risk

[For Work Sites] WBGT Value Displayed in Three Colors + Visualization Product for Heat Stroke Risk

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Watchful-kun PRO <WD100-ENV Series>

last updated:Oct 06, 2025

アイエスエイ
アイエスエイ
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Heatstroke prevention measures made mandatory! An IoT warning system that measures and records WBGT, ensuring visibility and notifications to protect the workplace.

In 2025, a system reform mandated that all businesses must understand and respond to WBGT values (heat index). "Miharukun PRO" is an IoT solution that visualizes, provides immediate warnings, and stores records of heatstroke risks at work sites. 【This product solves the following issues】 ✔ Heat measures at the site are subjective and vague ✔ WBGT values for each site are not being monitored ✔ Warnings are not noticeable, and employees may not be aware ✔ Records are not kept, making management and reporting difficult 【Main features of Miharukun PRO <WD100-ENV-LCD>】 ✔ Automatic measurement, display, and recording of WBGT, temperature, and humidity ✔ Excellent visibility with three-color lights + LCD display (green, yellow, red) ✔ Flashing and email notifications for threshold exceedance → Immediate response possible ✔ One main unit can connect with up to 32 sub-units ✔ Communication via LoRa wireless (long-range, low power consumption, resistant to obstacles) ✔ Large display with high visibility warns the entire floor ✔ Log storage can be utilized for compliance and report generation

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[For Work Sites] WBGT Value Displayed in Three Colors + Visualization Product for Heat Stroke Risk

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  • Temperature, humidity, CO2 concentration + heat index: Ensure safety and security in the workplace with 'Miharu-kun PRO'!
  • Special site - Product/service details - https://pr.mono.ipros.com/isa-j/product/

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For details on specifications and features, please check the official ISA website: Here is the official ISA product page: https://isa-j.co.jp/info/miharu/

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With the "mandatory" implementation of WBGT monitoring and heatstroke prevention measures on-site, there is an urgent need to introduce a system that can be operated immediately. "Miharukun PRO" eliminates the need for extensive wiring through LoRa wireless communication, allowing it to be installed in various locations within factories, warehouses, and buildings. 【Practical Examples】 ✔ Safety management for construction sites and warehouse operations in hot environments ✔ Automatic WBGT monitoring in factory floors without air conditioning ✔ Establishment of a management system that responds promptly to revisions in labor safety and health regulations ✔ Promotion of voluntary actions by workers through highly visible LCD displays ✔ Utilization of log data for report submission and risk management

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Model number overview
WD100-N32/N32 Data collection communication control server (master unit): LoRa wireless communication standard, line-of-sight approximately 11 km, communication possible up to about 3 km in dense areas.
WD100-ENV-LCD Miharu-kun PRO <Model with LCD>
WD100-ENV Miharu-kun PRO <Model without LCD>

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The "Miharu-kun PRO" displays temperature, humidity, and CO2 concentration on a large LCD screen. It provides warnings with three colors of light in stages, notifying you of the timing for ventilation!

The "Miharu-kun PRO" displays temperature, humidity, and CO2 concentration on a large LCD screen. It provides warnings with three colors of light in stages, notifying you of the timing for ventilation!

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Transitioning heatstroke measures in schools and special support schools from 'manual management' to 'automated monitoring' - Recruitment for free demonstration monitors of the WBGT remote monitoring system 'Miharu-kun Pro' has begun (Note: Recruitment for summer 2026 has closed).

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ISA Co., Ltd. (abbreviated as ISA, located in Shinjuku, Tokyo, President: Koji Yanagihara) has started recruiting free demonstration monitors for its environmental monitoring system "Miharukun Pro," which enables remote centralized management of WBGT (Wet Bulb Globe Temperature) to reduce the burden of heatstroke measures and strengthen safety management systems in schools and support schools. (※Due to a large number of applications, the recruitment for summer 2026 has been closed.) In the demonstration, the installation locations will be considered based on the operational conditions of various facilities such as classrooms, gymnasiums, schoolyards, and pools. The effects of visualizing environmental data, raising awareness through warning lights and email notifications, and reducing the burden of confirmation for teachers and staff will be confirmed. Through actual operation in school settings, it can contribute to the standardization of heatstroke measures, the acceleration of decision-making, and the efficiency of information sharing, thereby improving safety management systems.

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Meru Maru-kun + Heat Stroke Warning Alert Email Distribution Service

Immediate response to the "Heat Stroke Warning Alert"! Urgent proposal of heat stroke prevention products that can be used on-site right now.

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In response to the "Special Heat Stroke Warning Alert" and the "Mandatory Heat Stroke Measures" that began full-scale operation in June 2025, we are reintroducing our IoT heat stroke countermeasure solutions. The target products are the three series: "Meru Maru-kun + Heat Stroke Alert," "Miharukun PRO," and "Momoko and Ayaka." With this system revision, heat stroke measures have changed from "effort obligations" to "obligations" for all businesses employing workers. As measures are required across all industries and sites, including government agencies, educational institutions, welfare facilities, distribution, and construction, ISA supports the creation of a safe and secure environment through existing products that can be operated immediately. ■ Introduction of three heat stroke countermeasure products (1) Meru Maru-kun + Heat Stroke Warning Alert Email Distribution Service (2) Miharukun PRO (WBGT compatible model) (3) Momoko and Ayaka Environmental Monitoring Solution (environmental monitoring, recording, alerts) ◆ Main industries and achievements of implementation Local governments (offices, evacuation centers, nurseries) Educational institutions (playgrounds, gymnasiums, classrooms) Medical and welfare facilities (nursing homes, disability support facilities) Distribution and construction industries (warehouses, job sites, delivery hubs) General companies (reception areas, warehouses, employee break rooms)

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At ISAI, we offer a range of monitoring solutions including network warning lights (Keiko-chan / Meru Maru-kun), network monitoring, contact monitoring, PDUs, and network UPS, as well as IoT solutions for agriculture, distribution, factory automation, food, pharmaceuticals, education, and healthcare utilizing LoRa wireless communication. In the UNIX era of the 1990s, we developed an automatic shutdown device as a countermeasure for shutdown processing troubles. Subsequently, we focused on the development of network-related devices centered around Embedded Linux, and in the 2000s, we announced various networked devices and integrated management solutions. Even now, through unique products such as intelligent UPS, network warning lights, and LoRa wireless-enabled sensing systems, we provide advanced technology in a safe and easy-to-use manner, contributing to the enhancement of IT infrastructure. Additionally, ISAI leverages its achievements in server power management and automated system operations in large-scale core systems to offer a wide range of system operation technologies, including remote monitoring, equipment control, and the operation, monitoring, and management of power supplies (including UPS) via network.

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