By adopting LPWA, the CO2 concentration at a location approximately 10 km away is visualized. This enables the determination of appropriate ventilation timing for the facility.
The "Logbee HarucaCO2" is a data logger that integrates temperature, humidity, illuminance, and CO2 (carbon dioxide) concentration sensors. As CO2 concentration increases with the density of people, visualizing the CO2 levels within a facility allows for a scientific assessment of "crowding." By establishing ventilation standards based on CO2 concentration as a measure to prevent the spread of the novel coronavirus, appropriate air conditioning can be implemented. *The Japan Society for Occupational Health recommends that for the prevention of novel coronavirus infection, a CO2 concentration below 1000 ppm is considered good, while concentrations above 1500 ppm should lead to refraining from using that room. http://jsoh-ohe.umin.jp/covid_simulator/covid_simulator.html Using the LPWA (LoRa) wireless method in the 920 MHz band, sensor data can be acquired at a distance of up to 10 km in line of sight. Additionally, due to the excellent diffraction characteristics of this frequency band, data acquisition is possible in locations further away within buildings compared to the 2.4 GHz band. The monitoring software allows for a list of connected sub-device data and alarm email notifications.
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basic information
Chitose Industrial Logbee HarucaCO2 Specifications Model: CWS-38C Function: LPWA wireless communication sub-device with built-in temperature, humidity, illuminance, and CO2 concentration sensors Communication Frequency: 920.6 to 923.4 MHz compliant with ARIB STD-T108 Communication Distance: Line of sight 10 km Temperature Measurement Range: 0 to 55°C Humidity Measurement Range: 0 to 100% RH Illuminance Measurement Range: 0 to 80,000 lx CO2 Concentration Measurement Range: 0 to 10,000 ppm (at 0°C to 55°C) Power Supply: 4 AA batteries or AC adapter Weight: Approximately 390 g (including antenna) Dimensions: W100 × D60 × H80 mm (excluding antenna) Protection Structure: Drip-proof A separate master unit CWB-22SR and a computer are required.
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Applications/Examples of results
【Use Cases】 - CO2 concentration measurement in facilities - Data acquisition inside greenhouses on farms *For more details, please refer to the catalog or feel free to contact us.
Company information
Kozu Transmission Machinery Co., Ltd. is a top-class specialized trading company for industrial equipment in Japan. Countless machines in the industrial sector are in operation... and our products are vital in their drive, transmission, and control parts. We also contribute to the faithful execution of operations in FA and CIM. Since our founding in 1951, we have expanded our range of products not only in transmission components but also in response to customer needs, broadening our offerings to include control systems, ensuring we have everything necessary for transmission. With the motto of being a "trustworthy company," we have established a unique system to respond quickly to customer requests while maintaining a customer-oriented approach. Additionally, we continuously capture the latest product information and provide it to our customers, as well as making proposals to manufacturers. Moving forward, we aim to continue our daily efforts for improvement without forgetting our original intentions.