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6 particle size, high-performance compact! A side light scattering micro-particle measuring instrument that achieves long lifespan and quiet operation.

The "7301" is a real-time meter that displays pulses on the screen every second, showing particle concentration and equivalent mass concentration (in µg), and provides various communication functions as a light scattering method for measuring fine particles. The dedicated printer is common across all models. With the smart battery feature, it can measure continuously for a month on a single charge while left on-site. Continuous measurement lasts for 6 hours. The IMS software allows for external device control, data collection, and real-time graphing via USB or Ethernet on computers and other devices. 【Features】 ■ Real-time meter with particle count displayed in graphs every second ■ Particle counter particle size: 0.3μm to over 10μm ■ Environmental sensor: TRH (temperature and humidity sensor probe - optional) ■ PM mode µg/m³ (mass concentration equivalent) ■ ISO, GMP, FDA compliance, and reporting functions ■ Brushless motor pump for quiet operation and long lifespan *For more details, please refer to the PDF documentation or feel free to contact us.

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User-adjustable particle size settings! Light scattering method particle counter compatible with 6 particle sizes for large particles.

The "8506 Series" is a light scattering method particle counter that measures particle sizes ranging from 0.5μm to a maximum of 30.0μm and counts, displaying the measurement data for six set particle sizes (channels) along with temperature and humidity data (optional) simultaneously. Using the count data, it calculates the mass concentration of particles below the specified particle size based on user-defined parameters for density and refractive index, displaying PM concentration in μg/m³. The built-in Pulse Height Analyzer ensures reliable compliance. 【Features】 ■ Real-time meter with particle count graph displayed every second ■ High concentration support across a wide particle size range ■ User-friendly large touch panel and icons ■ Data memory for 45,000 samples ■ Remote control and graph plotting via IMS (standard software) ■ Equipped with a smart battery ■ Long-life laser with a durable optical system *For more details, please refer to the PDF document or feel free to contact us.

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All operations can be performed with touch panel icons! 3-channel particle counter.

The Particle Plus model '8303' measures particle sizes and counts of 0.3μm and above, displaying measurement data for three set particle sizes (channels) along with temperature and humidity data (optional) simultaneously using a light scattering method. It is operated entirely via touch panel icons. By setting density and refractive index (both user-defined) as parameters from the count data, it converts the mass concentration of particles below the specified size and displays PM concentration in μg/m³. 【Features】 - Real-time meter with particle count displayed in a graph every second - Wide particle size range of 0.3 to 25μm and capable of high concentration (up to general environmental levels) - Large color touch panel with easy-to-read and understand icons - Simultaneous measurement, display, and output of particle count concentration, mass concentration, and temperature difference (optional) for differential and total particle sizes - Data memory capable of storing 45,000 samples - In battery mode, it can be used continuously for 10 hours on a single charge For more details, please contact us or download the catalog.

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Providing reliable compliance! 6-channel particle counter

The Particle Plus model '8306' measures particles with a diameter of 0.3μm and above, displaying the number of particles in six set size channels, along with temperature and humidity data simultaneously, using a light scattering method. It calculates mass concentration based on the number data, using density and refractive index (both set by the user) as parameters, and displays PM concentration in μg/m³. The built-in Pulse Height Analyzer ensures reliable compliance. 【Features】 - Real-time meter with particle count graph displayed every second - Wide particle size range of 0.3 to 25μm and high concentration compatibility (suitable for general environmental class use) - Large color touch panel with easy-to-read and understand icons - Simultaneous measurement, display, and output of particle number concentration by size difference and total, approximate mass concentration, and temperature difference - Data memory capable of storing 45,000 samples - In battery mode, it can be used continuously for 10 hours on a single charge For more details, please contact us or download the catalog.

• Other measuring instruments

(Japan Wood Preservation Association) Hachikusan MC A-4244 The update as of January 1, 2026, is now available. <Notice> We are pleased to announce that Hachikusan ME 2 has obtained certification from the Cultural Properties Insect & Fungus Damage Research Institute. The certificate is now available for viewing.

We will introduce the implementation results of the sensor technology developed by the Hotron Group, which has been cultivated over more than half a century, through customer case studies. In addition to automatic door sensors, we also offer a wide range of vehicle detection sensors and nursing/care sensors. We have many implementation examples available, so please take a look at the case study page.

Happy New Year! We would like to express our heartfelt gratitude for your support throughout the past year. This year, we will continue to strive for further improvements in product quality and service in all situations, including concrete pouring at construction sites. We kindly ask for your continued support and patronage. We wish you all good health and happiness, and we would like to take this opportunity to extend our New Year's greetings. We look forward to your continued support this year as well. Perry Japan Co., Ltd.

Thank you very much for visiting our company website and catalog, and for your interest in our diesel engine generators. From customer surveys, the most common feedback we received was: - I want to see the actual generators that have been installed. - I want to see them operating under real load. - I want to hear the opinions of companies that have installed them. - I want to see the generators in operation before making a purchase. After all, it’s understandable to feel worried about purchasing a generator without seeing the actual unit first, right? As the saying goes, "Seeing is believing," so we will be holding this tour. It will take place in that area of the Kanto region, where summer temperatures exceed 40°C. We successfully operated our generators this summer as well, so we are confident in handling the heat (sweat). Additionally, it has been confirmed that our generators equipped with the world-leading "Scania engine" are "fuel-efficient." This will surely help reduce daily operating costs. Please note that while we will provide kind and courteous assistance, the meeting and dispersal will be at the site (transportation costs and other expenses will be borne by the customer), so please understand this in advance. Contact: Kaneko

Regarding the "Automatic Stop Function after 10 Years" Automatic stop has been implemented in products manufactured from 2015 onwards. ■ Overview of Inspection Period Notification Function The dedicated controllers and timers for underfloor and attic ventilation fans sold since 2015 are equipped with the safety function mentioned on the left. Starting from November 2025, the automatic stop function will be activated sequentially for products manufactured in 2015. ■ Response Procedure at the Time of Automatic Stop It is expected that customers will contact the sales and installation stores. We ask that sales and installation stores respond according to the following procedures: 1. Conduct a safety inspection based on the "Underfloor and Attic Ventilation Fan Inspection Checklist." * Please ensure to check for looseness and retighten the connections of the controller and timer. If any liquids such as water, oil, or detergent have come into contact, the internal components may corrode, leading to fire hazards; therefore, replacement of the main unit is necessary. 2. If there are no issues, press and hold the set button to restart the operation. ■ Start of Shipment for Controllers/Timers with Inspection Period Notification Function For details regarding the shipment history of timers, please contact our company’s sales representative or quality control department.