New product of sealing unit that facilitates electrical work for building renovations and extensions.

Round inspection opening/sealing hole that can be easily installed on the ceiling.

■Features of Ceiling Holes (Construction) 1. Wiring and cabling in the ceiling space can be done from indoors after the ceiling work is completed. 2. Wiring for information communication systems (IT) and various electrical works can be easily done from indoors in the ceiling space. 3. Not only electrical wires, but also piping for air conditioning refrigerants and air ducts can be installed from indoors to the ceiling space. 4. Wiring can be easily done from indoors to the ceiling space without becoming exposed, preserving the interior design of the building, and achieving a neat and aesthetically pleasing finish. 5. Construction time can be reduced by half (1/2) and construction costs can be lowered by one third (1/3), allowing for safe work and easier electrical installations. ■Features of Ceiling Holes (Product) 1. It is a round inspection opening (entry point) that can be installed in ceiling finishing materials. 2. It has a good appearance and can be easily installed with a one-touch mechanism. 3. There is no need for repair work on ceiling finishing materials or ceiling substrate materials, and no specialized contractors are required. 4. It can be installed even in ceilings without substrate materials (such as traditional Japanese room ceilings).

• Inspection hatches, manhole covers, and ditch covers
• Piping and electrical wiring materials
• Interior construction

Electrical work for new construction and renovations can be done easily / Ceiling hole construction technology

■Features of Ceiling Hole Construction Technology 1. Electrical work (ceiling wiring) can be done from inside after the ceiling construction is completed. 2. Wiring and installation of electrical equipment and various sensors for new construction, renovations, and extensions can be easily done from inside. 3. Wiring and installation of electrical equipment and various sensors can be easily done from inside without exposed wiring, preserving the interior design of the building and achieving a neat and aesthetically pleasing finish. 4. Construction time can be reduced (by half), and construction costs can be lowered (by one-third), allowing for safe work and easy electrical construction. 5. Connection verification and inspection can be easily performed from inside, making maintenance tasks easier.

• Inspection hatches, manhole covers, and ditch covers
• Other commercial buildings and service facilities
• Interior construction

Installation and inspection of ceiling-mounted fire detectors can be easily done from indoors / New product for ceiling stands.

■Features of the Ceiling Stand 1. The installation of ceiling-mounted detectors, wiring, and fixture mounting can be completed all at once after the ceiling work is finished. 2. Fire testing, operation confirmation, and installation position verification of ceiling-mounted detectors can be done from indoors. 3. Wiring can be done from indoors to the ceiling space without exposed wiring, maintaining the building's aesthetic and providing a good finish. 4. Shortened construction time (by half), reduced construction costs (by one-third), safer work conditions, and easier installation of fire prevention equipment. 5. Maintenance work and fire prevention management become safer and easier.

• Inspection hatches, manhole covers, and ditch covers
• Other commercial buildings and service facilities
• Manhole body

Fire safety equipment installation for new construction and renovations can be easily done / Sealing stand construction technology

■Features of the Sealing Stand 1. Installation of fire protection equipment, wiring, and mounting of fire detectors can be done collectively after the ceiling work is completed. 2. Wiring in the ceiling and installation of fire detectors for new construction, renovations, and extensions can be easily done from inside the room. 3. Fire tests, confirmation of operation, and verification of installation positions for ceiling detectors can be conducted from inside the room. 4. Wiring and installation of fire protection equipment in the ceiling can be easily done from inside the room without exposed wiring, preserving the interior design of the building and ensuring a neat and tidy finish. 5. Shortened construction time (by half), reduced costs (by one-third), safe work conditions, and easier fire protection equipment installation. 6. Fire tests, confirmation of operation, and verification of installation positions can be conducted from inside the room, making maintenance work safe and easy.

• Inspection hatches, manhole covers, and ditch covers
• Other commercial buildings and service facilities
• Interior construction

New product of sealing unit that facilitates electrical work for building renovations and extensions.

■Features of the Sealing Unit (Installation) 1. Wiring in the ceiling space and the installation of wiring devices can be done from inside the room after the ceiling work is completed. 2. Various electrical works for building renovations and extensions can easily be performed from inside the room for ceiling wiring and the installation of wiring devices. 3. Ceiling wiring and the installation of wiring devices can be easily done from inside the room without exposed wiring, preserving the interior design of the building, and achieving a neat and aesthetically pleasing finish. Additionally, maintenance work becomes easier. 4. Construction time can be reduced by half (1/2) and construction costs can be lowered by a third (1/3), allowing for safe work and easier electrical construction. ■Features of the Sealing Unit (Product) 1. It is a round inspection opening (entry point) with wiring devices that can be installed on ceiling finishing materials. 2. It has a good appearance and can be easily installed with a one-touch mechanism. 3. There is no need for repair work on ceiling finishing materials or ceiling substrate materials, and no specialized contractors are required. 4. It can be installed even on ceilings without substrate materials (such as traditional Japanese room ceilings). 5. The installation or replacement of wiring devices can be easily done on the floor surface instead of the ceiling surface (by removing the cover). 6. Connection checks and inspections can be performed without removing wiring devices, and the direction and arrangement can be freely changed (by removing the cover) (changing the direction of the cover).

• System ceiling
• Unit and other construction

New product for easily inspecting and connecting junctions of ceiling wires from indoors / Junction inspection opening.

■Features of the Joint Inspection Opening (Construction) 1. It can be easily installed from indoors onto the ceiling without any discomfort and with a good appearance. 2. It can be installed on the ceiling surface at the connection (joint) location of the wiring in the ceiling space from indoors. 3. The cover can be opened from indoors, allowing for easy inspection and connection work at the joint of the wiring in the ceiling space. 4. By periodically inspecting the connections of the ceiling wiring, which can be a cause of fire, by opening the cover from indoors, it is possible to prevent equipment damage and fires caused by overheating due to overload or poor connections. 5. The cover can be opened from indoors to perform connection replacement work for miswiring or poor connections of the ceiling wiring, without damaging the ceiling finishing materials. 6. It can be used not only for connecting general electrical wiring but also for connecting communication lines in low-voltage work. ■Features of the Joint Inspection Opening (Product) 1. It is a joint inspection opening that can be installed on ceiling finishing materials. 2. It has a good appearance and can be easily installed with a one-touch mechanism. 3. There is no need for repair work on ceiling finishing materials or ceiling substrate materials, and no specialized contractors are required. 4. It can be installed even on ceilings without substrate materials (such as traditional Japanese room ceilings).

• Inspection hatches, manhole covers, and ditch covers
• Other commercial buildings and service facilities
• Manhole body

The installation of the attic fire alarm can be easily done from indoors. / New product for attic fire alarm brackets.

■Features of Ceiling Space Fire Alarm Bracket (Installation) 1. The installation of the fire alarm in the ceiling space can be easily done from indoors, allowing for early detection of ceiling space fires. 2. The cover can be opened from indoors, making it easy to test and inspect the fire alarm in the ceiling space. 3. A fire alarm can also be installed on the cover, enabling coordination between indoor and ceiling space fire alarms. 4. The installation of the ceiling space fire alarm bracket on the ceiling surface can be easily accomplished. 5. It can be installed neatly and unobtrusively without compromising the building's image. 6. Work such as equipment installation, fire testing, and inspections can be safely performed from indoors without entering the ceiling space. ■Features of Ceiling Space Fire Alarm Bracket (Product) 1. This is a ceiling space fire alarm bracket that can be installed on ceiling finishing materials. 2. It has a good appearance and allows for easy one-touch installation. 3. There is no need for repair work on ceiling finishing materials or ceiling framing materials, and no specialized contractors are required. 4. It can be installed even on ceilings without framing materials (such as traditional Japanese room ceilings).

• Inspection hatches, manhole covers, and ditch covers
• Other commercial buildings and service facilities
• Manhole body

Our company will be exhibiting at the "Green Cross Exhibition 2026 in Sapporo." Duration: September 16 (Wednesday) to 18 (Friday), 2026 - 16th (Wednesday) 10:00 AM to 5:00 PM - 17th (Thursday) 9:00 AM to 5:00 PM - 18th (Friday) 9:00 AM to 3:00 PM Venue: Sapporo City Sports Exchange Facility Tsudome (Sapporo City, Hokkaido) We look forward to your visit.

Japan is one of the top 10 countries in the world with frequent earthquakes. The 2020 White Paper on Land, Infrastructure, Transport and Tourism has also reported an increase in the probability of major earthquakes occurring. Regarding the Nankai Trough earthquake, the probability of an earthquake with a magnitude of 8 to 9 occurring within the next 30 years is estimated to be 70 to 80%. At Hotron, we recommend the introduction of seismic devices for earthquake countermeasures in buildings and equipment. The seismic device 'HK-2' is a product that automatically performs various controls that have been pre-set when it detects strong shaking equivalent to a seismic intensity of 5 lower or higher. For example, it can automatically execute actions such as: "Open automatic doors and gates to secure evacuation routes and access for emergency vehicles" "Transmit signals to the control room and stop facility equipment" "Unlock the keys to locked lockers" "Automatically play voice guidance" For more details, please download the materials or contact us.

We have introduced Majesta Fragrance to a nightclub in Yokosuka City, Kanagawa Prefecture, creating a fragrant atmosphere throughout the floor. The model we have introduced is the "MF-02S," which costs 8,800 yen per month (tax included). The scent you have chosen this time is "Sabon," a high-quality soap fragrance reminiscent of luxury hotel amenities. Its clean and transparent refreshing scent spreads throughout the entire floor, warmly welcoming customers who visit. By introducing scent design to the nightclub, we can enhance the extraordinary experience and create a memorable space that lingers not only visually but also through "scent." Majesta Fragrance offers a rental service for commercial aroma diffusers, and we also provide a free trial installation. If you are interested in scent design, please feel free to contact us.

In the July 8, 2026 issue of Air Conditioning Times, we featured "Flex Chamber" and "SS Premier" in a duct special.

SS Premier has won an award at the 24th Environmental and Equipment Design Awards. This award is organized by the General Incorporated Association of Architectural Equipment Comprehensive Association and recognizes outstanding efforts in environmental and equipment design. We will continue to strive for further improvements in quality and technology.