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  3. Measurement and Analysis
  4. Distance Measuring Device
  5. Distance measuring device
  6. A lightweight 7.6 kg device that can automatically and easily measure construction limits in track maintenance operations.

A lightweight 7.6 kg device that can automatically and easily measure construction limits in track maintenance operations.

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last updated:Jan 19, 2026

有限会社エムティプレシジョン
有限会社エムティプレシジョン
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No need to bring a PC on-site! This is a construction limit measuring device that can measure using only the measuring instrument. We can provide demo units for loan/rental. Reports are also easy to create.

This is a building gauge measuring device for railway operators. Its main purpose is to be used in railway facilities such as tunnels, platforms, and signals. The rotation angle of the internal laser distance sensor is controlled by an internal motor, allowing for continuous and single measurements. The measurement results are saved to a microSD card, enabling serial data communication output to a PC or similar devices. A dedicated base is used to install the measuring device on the track, and it can simultaneously measure cant and slack along with the building gauge measurement. To measure, the base is installed on the rail, and the laser is directed at the desired measurement point while pressing the measurement switch. The horizontal distance from the rail surface and the track center, as well as the height, are measured, and simultaneously, the measurement points are plotted on the building gauge diagram, with the clearance values calculated. 【Features】 ■ Equipped with a color graphic LCD - Allows for confirmation of measurement results on-site ■ Inclination sensor included - Cant measurement possible with a dedicated base ■ Compact and labor-saving - Has a widening measurement function *If you are interested in renting, please indicate your rental request by clicking the "Contact Us" button below.

    Distance measuring device
LDM300.JPG

A lightweight 7.6 kg device that can automatically and easily measure construction limits in track maintenance operations.

LDM300.JPG
LDM300.JPG
  • For details on the building limit measuring device, click here.
  • Special site - Product/service details - https://pr.mono.ipros.com/mtprecision/product/

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basic information

【Specifications】 ■Measurement Accuracy - Limit Measurement: ±3mm - Distance Measurement: ±2mm - Minimum Display Unit: 1mm ■Power Supply: Lithium-ion battery, manufactured by SONY (NP-FV70) ■Usage Time: Approximately 6 hours ■Memory Function: 300 points per measurement (combined continuous and single) Measurement data is stored using a microSD card (4GB) ■Communication Function: Serial asynchronous RS232C/USB ■Measurement Range: 0.05 to 150m (varies depending on the object being measured) ■Measurement Distance Resolution: 0.001m (1mm) ■Laser Spot Diameter - 6mm (at 10m) - 30mm (at 50m) - 60mm (at 100m) ■Measurement Laser Light Source: Red laser diode, 620-670nm IES 825-1:1993: Class 2 ■Angle Measurement Range: 0° to 359°59’, Zenith: 90°, Origin: 0° ■Angle Resolution: 1’ ■Operation Keys: 3 keys on the main unit + touch panel ■Display Screen: WGVGA (480x272) 4.3-inch color LCD *For more details, please refer to the PDF document or feel free to contact us.

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Applications/Examples of results

【Applications】 ■Architecture (Home structure separation measurement) ■Civil Engineering (Tunnel cross-section measurement) ■Communication and Signal (Structure interference measurement) ■Electric Power (Overhead line measurement) ■Track Maintenance (Track center)

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【*Demo Unit Rental*】Tunnel Cross-Section / Building Clearance Measuring Device 'LDM300A'

【*Demo Unit Rental*】Tunnel Cross-Section / Building Clearance Measuring Device 'LDM300A'

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【Rental Start!】Building Limit Measurement Device 'LDM300A'

【Rental Start!】Building Limit Measurement Device 'LDM300A'

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Company information

有限会社エムティプレシジョン

有限会社エムティプレシジョン

Optical Instruments

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Since its establishment, we have been involved in the development of our own products, starting from gathering ideas, and have repeated the processes of mechanical design, processing, circuit design, and embedded programming every year. Currently, we are engaged in both OEM production and the sale of our own products, and we intend to continue developing measuring instruments that can further meet our customers' needs. We are also the general agent for Dimetix in Switzerland and are focusing on the sales of red laser distance meters. This product has been adopted for measuring the height of the Tokyo Skytree, the tallest structure in the world. We believe there are still many applications for this technology, and we would like to explore each one. In recent years, we have also been focusing on measuring instruments for railway-related construction limits. We have started to receive inquiries from East Japan Railway Company regarding the development of measuring instruments for construction limits in various fields such as construction, civil engineering, signaling, and power. Additionally, we received an Encouragement Award at the 28th Ota City Small and Medium Enterprises New Products and New Technologies Competition for our graphic-integrated construction limit measuring instrument.

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