東建エンジニアリング List of Products and Services

The "RT720-4VD / RT720F-4VD" is a flow meter that measures flow velocity non-contact using microwave Doppler technology. The operating frequency band is within 24.2GHz at 10mW, and no license is required for use (compliant with technical standards). Additionally, non-communication data is recorded on a 1GB SD card. 【Features】 ■ Measurement intervals can be as short as 1 minute ■ Communication data is recorded on a cloud server and SD card ■ No electrical or communication work is required (uses solar unit and 3G/4G communication) ■ Usable in areas such as rivers and waterways *For more details, please download the PDF or contact us.

• Surveying
• Other measuring instruments

The "RT720-4VD4W / RT720F-4VD4W" is a device that combines a non-contact water level gauge, which measures the distance from the sensor to the water surface using radio waves, and a non-contact flow meter that measures flow velocity using microwave Doppler technology. The water level sensor operates in the 26GHz band and does not require a wireless license for use. Additionally, measurement intervals can be as short as one minute. 【Features】 ■ The flow velocity sensor can be used from a bridge at a distance of about 10 meters above the water surface in open channels and urban rivers. ■ Non-communication data is recorded on a 1GB SD card. ■ Communication data is recorded on a cloud server and an SD card. ■ No electrical or communication construction is required (uses solar power and 3G/4G communication). ■ Usable in areas such as rivers and waterways. *For more details, please download the PDF or contact us.

• Surveying
• Other measuring instruments

The "RT510-1V/RT510F-1V" is a flow meter (rental-only product) that measures flow velocity by installing an ultrasonic flow velocity sensor underwater in sewer pipes and small rivers. The measurement interval can be as short as 1 minute, and non-communication type data is recorded on a 1GB SD card. 【Features】 ■ Communication type data is recorded on a cloud server and SD card ■ No electrical or communication work is required (uses solar batteries and 3G communication) ■ Various sensors such as water level gauges can be added *For more details, please download the PDF or contact us.

• Surveying
• Other measuring instruments

The "RT720-4VD5W / RT720F-4VD5W" is a device that combines a sensor for measuring water levels using ultrasound and a non-contact water level and flow velocity sensor that measures flow velocity using microwave Doppler technology. The operating frequency band is within 24.2GHz at 10mW, and no license is required for use. (Technically compliant product) It can be used at a distance of about 10m from the sensor to the water surface in open channels and urban rivers. 【Features】 ■ Non-communication type data is recorded on a 1GB SD card ■ Communication type data is recorded on a cloud server and an SD card ■ No electrical or communication construction is required (uses solar power and 3G/4G communication) ■ Usable in areas such as rivers and waterways *For more details, please download the PDF or contact us.

• Other measuring instruments
• Surveying

We offer an "Observation Camera System" that can be utilized for monitoring water levels in rivers and lakes, as well as visually confirming environmental changes. Measurement data and still images can be accessed from anywhere via a web browser. Additionally, we provide various sensors for water level, flow rate, weather, water quality, and more. 【Features】 ■ No need for communication construction with 3G/4G communication, low communication costs ■ Operable with an independent power supply using approximately 26W solar panels and approximately 26Ah lead-acid batteries * Power capacity may vary depending on connected sensors and measurement intervals. ■ Alarm email service available for multiple stakeholders - Alarm email settings can be configured on the cloud service "Wakarukun" ■ Provision of various sensors * For more details, please download the PDF or contact us.

• Surveying
• Security cameras and surveillance systems
• Other measuring instruments

Our company offers a disaster area water level measurement alternative observation system that does not require line construction by utilizing 3G/4G communication networks. Data can be viewed and downloaded through our cloud service "Wakarukun." You can access the data immediately after the installation of the equipment. Additionally, the rental period can be as short as one week. 【Features】 ■ Affordable equipment rental ■ Cloud service "Wakarukun" ・ Alarm email sending function: Emails can be sent based on pre-set alarm thresholds ■ A variety of water level sensor lineup *For more details, please download the PDF or contact us.

• Other measuring instruments
• Surveying
• Measurement and analysis equipment leasing and rental

We offer a "River Flow Observation System" that can be used for river flow measurements, simple installations for small-scale flow observations, and as an alternative to floats. This system can be installed on bridges or riverbanks in rivers and open channels, allowing for non-contact measurement of surface flow velocity and water levels. 【Features】 ■ Portable and capable of cross-river observations with multiple installations during high water events ■ Operates on a 24GHz band with less than 10mW power, so no radio station license is required *For more details, please download the PDF or contact us.

• Surveying
• Other measuring instruments

Our company offers a "Sewer Flow Measurement System" that can be utilized for investigating and observing water levels, flow velocities, and flow rates in sewers, as well as for unknown water investigations in sewer systems. The products include water level meters, flow meters, weather meters, and water sampling devices, among others. Additionally, we have a variety of optional equipment such as water samplers, cameras, and water quality meters available. 【Features】 ■ Water level measurement using pressure type or non-contact ultrasonic methods ■ Data collection recorded on a 1GB SD card ■ Power supply options include a DC12V rechargeable battery or a single alkaline battery box *For more details, please download the PDF or contact us.

• Surveying
• Environmental Survey

The "RT510-1VW/RT510F-1VW" is a self-recording water level and flow meter (rental-only product) that installs ultrasonic flow velocity sensors and pressure water level sensors in sewer pipes, open channels, and small rivers to simultaneously measure flow velocity and water level. The water level sensor is a slim pressure type with a diameter of 19mm and atmospheric pressure compensation. It can be used for flow observation during discharge in urban rivers, small rivers, and open channels. 【Features】 ■ Can be used for flow observation in combined sewer systems and for investigating unknown water sources ■ Measurement intervals can be as short as 1 minute ■ Non-communication data is recorded on a 1GB SD card ■ Communication data is recorded on a cloud server and an SD card ■ No electrical or communication work is required (uses solar power and 3G communication) *For more details, please download the PDF or contact us.

• Other measuring instruments

This system monitors the "flooding of agricultural ponds" caused by rapid water level rises due to record short-duration heavy rainfall, typhoons, or the effects of naturally occurring sediment dams from disasters. The system automatically monitors agricultural ponds and irrigation channels without human intervention, and in emergencies, it can coordinate various responses, such as evacuation advisories and gate opening/closing operations, in collaboration with comprehensive security companies. Measurement data is displayed on the cloud service "Wakarukun," and can be accessed from external devices such as smartphones and tablets as long as there is an internet connection, in addition to office PCs. 【Features】 ■ Non-contact ultrasonic water level sensor ■ Data transmission with arbitrary threshold settings ■ System health signal sent once every 24 hours ■ Network camera connection available ■ High-sensitivity infrared camera adopted, etc. *For more details, please download the PDF or contact us.

• Security cameras and surveillance systems
• Other measuring instruments
• Analysis and prediction system

"Wakarukun" is an M2M cloud service that utilizes 3G communication and our cloud server. It can be used anytime and anywhere as long as there is an internet connection, allowing multiple stakeholders to share information. It can be used on-site for surveys and observations of rivers, groundwater, and weather, as well as monitoring operations around construction sites. Additionally, it is available for rental starting from just one month, so please feel free to consult us. 【Features】 ■ Usable anytime and anywhere with an internet connection ■ Information can be shared among multiple stakeholders ■ Rental available from just one month *This catalog is a digest version. Please contact us if you need the full version. *For more details, please contact us or download the catalog.

• Security cameras and surveillance systems
• Other Software