ジオテクサービス List of Products and Services

For more details, please visit our company website or feel free to contact us.

• pump

For more details, please visit our company website or feel free to contact us.

• pump

■Construction To secure small base fittings with stainless bands, they can be easily fixed to pipes of any diameter, from small to large. ■Low Cost By using the "external thread + high nut connection method," we reduce the processing costs of the rods, achieving low costs.

• Other measuring instruments

■Easy assembly on site The settlement plate is shipped with the base plate (steel plate) and measuring rod (steel bar) separated. On-site assembly involves screwing the measuring rod into the base settlement plate. The rods are connected with nuts every 1 meter. Each rod comes with a high nut.

• Ground improvement

■Easy assembly on site The settlement plate is shipped with the base plate (steel plate) and measuring rod (steel bar) separated. On-site assembly involves screwing the measuring rod into the base settlement plate. The rods are connected with nuts every 1 meter. Each rod comes with a high nut.

• Ground improvement
• Site and ground investigation

The "KVS Strainer" is a hybrid screen that combines a corrosion-resistant PVC pipe round hole strainer and a stainless steel wire-wound V-slot screen with high strength and excellent water intake performance. Due to its dual characteristics, it can be used in various water wells. It is particularly effective in strata that require high permeability and water collection performance, as well as in wells that need to address sand lifting, electrolysis, and metal and water quality issues. Additionally, the "W.KVN Strainer" for double casing is available in six types ranging from 100A to 300A. 【KVS Strainer Features】 ■ Screen for water intake in wells ■ Usable in various water wells ■ Highly effective in strata requiring high permeability and water collection performance, as well as in wells needing to address sand lifting, electrolysis, and metal and water quality issues ■ Available in a standard length of 4m, with three types of diameters: 200/250/300A *For more details, please refer to the PDF document or feel free to contact us.

• Drainage and ventilation equipment
• Water Treatment

The "STA-12L" is a distortion amplifier that simplifies the functions of the standard 120Ω gauge amplifier "STA-12G" and offers it at a lower cost. It has a fixed gain of 1μ strain = 0.5mV, with zero distortion and a 2.5V output. It converts changes from -4000 to 5000 microstrains into a voltage range of 0.5V to 5V. Additionally, while the gain is relatively low and there is no zero-point adjustment, the output voltage remains within the 0 to 5V range, allowing for measurement with commercially available 0 to 5V loggers. 【Features】 ■ Accuracy and stability are equivalent to the higher-end STA-12G, making it suitable for practical measurement tasks. ■ The terminals are soldered, reducing errors from contact resistance of lead wires. ■ The gain is fixed at 400 times, amplifying 1μStrain to 0.5mV. ■ Outputs -4000μ = 0.5V, 0μ = 2.5V, and 5000μ = 5V (max 9000μ = 7V). ■ Operates on a 9 to 15V power supply with a low current consumption of 25mA. *For more details, please refer to the PDF document or feel free to contact us.

• Structural Survey

The "GWI-02A" is a wind direction and speed meter that measures every second and calculates the average wind direction, average wind speed, and maximum instantaneous wind speed over a period of 10 minutes, outputting the results as voltage. The output of the anemometer itself is in 1-meter units, but through pulse period calculations, wind speeds can be measured in 0.1-meter units. Additionally, when combined with a data logger, it can issue simple alarms, and when combined with communication devices, it supports remote monitoring. 【Features】 - Lightweight and compact, easily mountable on a single pipe - Wind speeds can be measured in 0.1-meter units through pulse period calculations - Easy installation on-site - Wind speed values are accurately calculated - Connects to the terminal block of the anemometer and wind speed converter *For more details, please refer to the PDF document or feel free to contact us.

• Other civil engineering services

The "STA-12G" is an improved version of the old 120Ω gauge amplifier "LCA-124 (discontinued)," designed for 1 and 2 gauge applications. It has changed the amplification ratios from 1,000 and 2,000 times to 800 and 1,600 times. With this change, for example, when set to 800 times, a strain of 1μStrain is output as exactly 1mV, making conversion easier. Although the reduction in amplification ratio has decreased amplification accuracy, it has become an overall user-friendly, low-power strain amplifier. 【Features】 ■ Amplification ratios selectable: 200, 400, 800, 1600 times ■ Amplifies 1μStrain to 1mV at 800 times ■ Low power consumption of 25mA (when connected to a 120Ω gauge) ■ Zero adjustment range of ±2mV (equivalent input voltage) ■ Compact low-power strain amplifier *For more details, please refer to the PDF document or feel free to contact us.

• Other measuring instruments

The "GS-1212NX" is an adapter suitable for remotely monitoring devices equipped with RS-232C or RS-485 communication ports over the FOMA network. When combined with the "FOMA Ubiquitous Module Dedicated Adapter" manufactured by NTT Docomo, it enables the construction of a low-power remote monitoring system powered by solar cells. Additionally, it features low-speed pulse count input channels, allowing for the counting of inputs from voltage-free contacts such as rain gauges. 【Features】 ■ Capable of constructing a low-power remote monitoring system powered by solar cells ■ Supports RS-232C and RS-485 communication ports on the measuring instrument side ■ Compatible with NTT Docomo's packet communication on the communication device side ■ A low-power communication device that operates on DC12V, allowing for long-term operation with a 20W solar power supply ■ Equipped with 2 channels of voltage-free contact input and 2 channels of output *For more details, please refer to the PDF document or feel free to contact us.

• Other civil engineering services

The "GSD-06M" is a simple ultrasonic water level gauge suitable for measuring water levels in rivers and reservoirs, capable of measuring up to 6 meters. It is installed on bridge railings and measures the distance to the water surface. The sensor output is a current output of 4-20mA. With a 12V power supply and a current consumption of 110mA, it operates efficiently using a combination of solar panels and batteries. 【Features】 ■ Sensor output is a current output of 4-20mA ■ 12V power supply with a current consumption of 110mA for energy efficiency ■ Operates with a combination of solar panels and batteries ■ Standard cable length for the sensor part is 2m ■ Cable extension is possible using an optional cable extension box (0.3mm² or larger/3-core, within 300m) *For more details, please refer to the PDF document or feel free to contact us.

• Geological Survey Company

The "GSL-050/GSL-100" is a compact, simple type of extensometer designed with waterproof and dustproof features. There are two types with measurement ranges of 500mm and 1000mm. The box contains a power circuit and a lightning arrester. Additionally, it is resistant to temperature changes, making it suitable for displacement measurement in snowy and windy environments. 【Features】 ■ Strong against environmental changes ■ Waterproof and dustproof design ■ Compact size ■ Power circuit and lightning arrester built into the box ■ Suitable for displacement measurement in snowy and windy environments *For more details, please refer to the PDF document or feel free to contact us.

• Geological Survey Company

The "Well PACK 10" is a waterproof electrical logging device that connects a logging cable to four terminals to measure the resistivity within boreholes or open water wells using a tip electrode, displaying the measured resistance values digitally. By installing two remote electrodes on the ground, it can also accommodate two-pole logging (normal configuration). Compared to conventional logging devices (Model 3244, Earth Resistivity Meter), its weight and volume are less than one-twentieth. It operates continuously for over six hours on four AA alkaline batteries. 【Features】 - Lightweight, compact, and reduces work time - Power supply is four AA batteries, easy to replace - Measurement voltage of 10V allows for safe operation - Automatic measurement after wiring is completed - Simple waterproof design intended for outdoor use - Related products for drilling reports *For more details, please refer to the PDF document or feel free to contact us.

• Boring Company

The GS-1210 is a fingertip-sized compact converter that fits into corners of control panels and measurement boxes. It is an interface for PT100Ω that converts temperatures from -30 to +70°C into a 0 to 5V DC voltage, with a wide power supply voltage range of DC 10 to 28V and a low current consumption of just 4mA. Additionally, it is well-suited for outdoor observations using solar or battery power where there is no power supply. Its wide power supply voltage range allows for integration into industrial measurement 24V instrumentation panels. Compatible sensors include standard PT100Ω sensors (JIS C1604-1997). 【Features】 - Easy integration into control panels and instrumentation panels - Low power consumption with a current of 4mA - No issues with self-heating from devices affecting temperature measurements - Compatible with standard PT100Ω sensors - Within ±0.3°C error in the normal operating temperature range (-10 to 50°C) *For more details, please refer to the PDF document or feel free to contact us.

• Other civil engineering services

The "GS-1209" is a compact-sized thermocouple converter that fits in the palm of your hand and can be placed in corners of control panels and measurement boxes. Thermocouples are inexpensive and easy to process and extend. However, since the sensor signal is very small, a dedicated amplifier-equipped logger is required for measurement. This product amplifies the thermoelectric voltage from mV to 5V, allowing measurement with a general-purpose voltage data logger. 【Features】 ■ Low cost while ensuring accuracy near room temperature ■ Compact and energy-efficient converter ■ Can be mounted on standard DIN rails ■ Compatible with various thermocouples ■ Achieves high precision within a limited temperature range *For more details, please refer to the PDF document or feel free to contact us.

• Geological Survey Company

The "GLD-10000" is a compact and low-cost simple laser snow gauge that measures the distance from the reflection of red laser light to the snow surface. It operates on a low-power DC12V sensor, with a quick response time of 0.5 seconds, allowing for intermittent operation to save power. The measurement accuracy is within ±10mm on the snow surface (average error ±5mm) and within ±3mm on smooth surfaces. Additionally, it can be connected to a voltage-type data logger for automatic measurements. 【Features】 ■ Measures the distance from the reflection of red laser light to the snow surface ■ Compact and low-cost simple laser snow gauge ■ Suitable for outdoor measurements and can also be used for displacement measurements of civil engineering structures ■ Measurement accuracy is within ±10mm on the snow surface (average error ±5mm) and within ±3mm on smooth surfaces ■ Can be connected to a voltage-type data logger for automatic measurements *For more details, please refer to the PDF document or feel free to contact us.

• Geological Survey Company

The "Smart Water Level Meter," also known as the Tubeless Water Level Meter, transforms the conventional submerged water level meter into a compact, low-cost, and quick-delivery device using digital transmission technology, while eliminating the atmospheric vent pipe essential for pressure-type water level meters. It is a low-cost, contact-type water level meter designed for groundwater observation and small to medium-sized rivers, suitable for crisis management. It can be used as a high-precision, simple water level meter for small rice paddy water level monitoring, reservoirs, irrigation channels, and water control facilities such as sluices and gates. 【Features】 ■ Compact, low-cost, and quick delivery ■ Appearance: a slim and short water level meter with a diameter of 13mm and a length of 62mm ■ Direct digital conversion of water pressure at the tip ■ Soft correction of atmospheric pressure fluctuations using a ground-level atmospheric pressure sensor to calculate water level ■ Significant reduction in the number of components, achieving miniaturization and cost reduction *For more details, please refer to the PDF document or feel free to contact us.

• Consulting companies

The "STA-04G" is an amplification amplifier that connects strain gauges to a voltage logger. It is specifically designed for 4 gauges, amplifying the bridge voltage from 200 to 1600 times and converting it to a ±5V direct current voltage. This is an outdoor specification static strain amplifier powered by DC12V, and when used at a gain of 800 times, it outputs "1μStrain = 1mV," making conversion easy. 【Features】 ■ Gain selectable at 200, 400, 800, or 1600 times ■ Amplifies to 1μStrain = 1mV at 800 times ■ Low power consumption of 15mA (with 350Ω gauge connected) ■ Zero adjustment range of ±2mV (input voltage equivalent) ■ Compact and low-power converter ■ Suitable for civil engineering and construction sites *For more details, please refer to the PDF document or feel free to contact us.

• Other civil engineering services

We handle "electric logging cables" used for electrical logging in well drilling sites and borehole earth construction. The standard lengths are 150m or 300m. The electrode spacing is 0.5m for short and 1.0m for long, with an 8-core wire. We also manufacture 2-pole and 4-core specifications. Additionally, the electrodes are connected one by one and bundled into one structure with heat shrink tubing, preventing issues such as water seeping into the wires and causing shorts. 【Features】 ■ Copper wire electrodes with low ground resistance ■ Reinforcement ropes for electrodes made of Kevlar ■ Connection points between electrodes and cables are made of SUS ■ Depth indicators on the cable at 1m intervals ■ Wires are color-coded individually ■ Portable in a container box *For more details, please refer to the PDF document or feel free to contact us.

• Boring Company

The "GEH-250S" is a ground subsidence gauge that can measure subsidence (uplift) of up to 250mm with high precision of less than 0.1mm, allowing for long-term stable measurements. It measures the relative displacement between the pipe of the observation well at a fixed point and the surrounding ground. Additionally, because it uses a non-contact magnetic sensor, it can measure even in outdoor environments exposed to wind and rain, as well as in high-humidity underground pits. By replacing traditional self-recording ground subsidence gauges, it is expected to reduce the labor involved in paper replacement and data reading. 【Features】 ■ High precision of less than 0.1mm, allowing for long-term stable measurements ■ Utilizes a non-contact magnetic sensor ■ Capable of measuring in outdoor environments exposed to wind and rain, as well as in high-humidity underground pits ■ Low power consumption with a 12V power supply ■ Can be combined with a compact logger and powered by solar cells and batteries for long-term operation *For more details, please refer to the PDF document or feel free to contact us.

• Geological Survey Company
• Consulting companies

The "GRC-01" is an easy-to-install rain gauge that can measure with a resolution of 0.2mm per pulse. The main body is made of resin, making it corrosion-resistant, and it has been treated for waterproofing and dust prevention. It can be easily mounted on temporary scaffolding pipes using a horizontal adjustment stand. With the use of a web remote monitoring service, you can check rainfall from a distance, and it can also be combined with a separately sold robust rain gauge stand. 【Features】 ■ A carefully designed double filter prevents clogging ■ Complete waterproof treatment prevents electrical failures ■ Horizontal adjustment is easy with a dedicated stand ■ Can be easily mounted on temporary scaffolding pipes used at construction sites ■ Automatic recording is possible when connected to a data logger with a pulse counter *For more details, please refer to the related links or feel free to contact us.

• Geological Survey Company

The "GTR-04G" is a low-power 4-channel field data logger that can be powered by solar energy, batteries, or a 12V vehicle system. It has a wide range of analog inputs of ±10V with a resolution of 1mV, and it also controls the on/off of the power supply for sensors. In addition to regular data measurement, it is equipped with alarm judgment functions, alarm contact outputs, and an RS-485 communication port. It can be widely used for remote monitoring and disaster prevention alarm systems. 【Features】 ■ Controls the on/off of the power supply for sensors ■ Collected data can be easily copied to a memory card for retrieval and processed with Excel or similar software ■ Achieves automatic clock adjustment and accurate time signal output via GPS ■ 4-channel alarm judgment and pulse measurement *For more details, please refer to the PDF document or feel free to contact us.

• Geological Survey Company

The GS-1215 is a rain pulse converter that counts the contact signal pulses from a rain gauge and converts them into an analog voltage output. It can operate in a power-saving mode by counting with a built-in battery and providing analog output when powered. It outputs in 10mV increments for every count of rainfall and resets to zero after 500 counts. Additionally, it can count pulses from sources other than rain gauges in high-speed pulse mode. 【Features】 ■ Counts contact signal pulses from rain gauges ■ Converts to analog voltage output ■ Counts with a built-in battery ■ Capable of power-saving operation with analog output when powered *For more details, please refer to the related links or feel free to contact us.

• Other civil engineering services

The "DSL-64S" is a compact strain logger for outdoor measurements that supports up to 64 channels (when adding measurement units in increments of 8 channels). It operates at a low standby power of 3mA, making it suitable for solar power and small 12V batteries. In addition to remote monitoring via an RS-485 communication port, it supports full digital configurations for 1 gauge, 2 gauges, and 4 gauges. 【Features】 ■ Operable with solar power and small 12V batteries ■ Remote monitoring available via RS-485 communication port ■ Supports up to 64 channels (when adding measurement units in increments of 8 channels) *For more details, please refer to the related links or feel free to contact us.

• Other civil engineering services

The "GTR-24H" is a low-power voltage logger powered by solar energy or a 12V battery. It has a wide analog input range of ±10V and a resolution of 1mV, and the sensor power during measurement can be controlled to turn on and off within a range of 0 to 60 seconds. Many analog sensors can be connected. Data can be collected via an SD card, and it can also be used for remote monitoring terminals through RS-232C and RS-485 communication. 【Features】 ■ Compatible with SDHC cards of 4GB or more ■ Compact and low-power multi-channel logger ■ Data collection via memory card ■ Settings via LCD panel and rotary switch ■ Supports RS-232C and RS-485 communication ■ Equipped with push-lock terminal blocks *For more details, please refer to the related links or feel free to contact us.

• Geological Survey Company

The "GTR-920F" is a low-power data transmission wireless device operating in the 920MHz band. The child station can also serve as a relay station, enhancing reliability with multi-hop and redundant network configurations. Additionally, it operates on a 12V power supply with a low current consumption of 4 to 30mA, making it suitable for outdoor measurements using solar power and batteries. Its lightweight, waterproof resin case and low power consumption allow for smaller solar panels and batteries, making it useful in areas where laying communication cables is difficult due to steep terrain. 【Features】 ■ Communication range of 1200m in line of sight, with up to 2 levels of relaying (parent → relay 1 → relay 2 → child) ■ Communication interface can be selected between RS-232C and RS-485 using an internal dip switch ■ Can be connected to PCs and various data loggers ■ Communication speed for RS-232C and RS-485 is fixed at 9600bps ■ Capable of sending and receiving long packets of text or binary data under 4095 bytes *For more details, please refer to the related links or feel free to contact us.

• Other civil engineering services

This product is an electric conductivity meter (conductivity meter) with a separated sensor unit and conversion unit. The sensor unit comes in two types: a low conductivity type with a maximum of 400μS/cm and a high conductivity type with a maximum of 10,000μS/cm. The measurement range can also be switched, making it applicable to a wide range of conductivity. In addition to conductivity, it also has a built-in water temperature sensor with a 4-20mA output for water temperature. 【Features】 ■ The sensor unit and conversion unit are separated. ■ The sensor unit is compact and has high waterproof performance, allowing it to be installed in small-diameter observation wells. ■ It is easy to clean, making it suitable for measurements in outdoor waterways and other environments where weather resistance is required. ■ The sensor unit comes in two types: a low conductivity type with a maximum of 400μS/cm and a high conductivity type with a maximum of 10,000μS/cm, and the measurement range can be switched, making it applicable to a wide range of conductivity. ■ In addition to conductivity, it also has a built-in water temperature sensor with a 4-20mA output for water temperature. *For more details, please refer to the related links or feel free to contact us.

• Other civil engineering services

The "GTL-100H" is a one-wire temperature profiler that connects up to 60 temperature sensors with a single cable, allowing for simultaneous digital transmission of temperature measurements. It provides detailed data both spatially and temporally, enabling in-depth analysis of underground thermal energy and groundwater flow. The logger and temperature profiling cable are connected with a thin flathead screwdriver at the terminals, and it starts up when a DC12V power supply is connected. The RS-485 connection is also terminal-based. 【Features】 - Measures standard 51 temperature points at 2m intervals up to a depth of 100m with a single cable. - The maximum outer diameter of the temperature measurement section is 18mm, allowing it to be inserted into a measurement tube with a diameter of 25mm. - Measures 50 points in about 1 second, enabling high-precision measurement with a relative error of ±0.2°C. - Energy-efficient design powered by a 12V battery. - The logger has an RS-485 communication port, supporting remote measurements via radio or mobile packet communication. *For more details, please refer to the PDF document or feel free to contact us.

• Other measuring instruments

The "GIC-10W/GIC-30W" is an inclination sensor suitable for construction and civil engineering fields, designed for underground burial, underwater installation, and structural applications. The general-purpose, low-cost inclinometer "GIC-30W" can be mounted on a PVC pipe and buried about 30 cm in the ground, minimizing the effects of temperature changes and enabling stable measurements. Additionally, the high-precision model "GIC-10W" is stable against temperature variations by one digit, and when buried underground, it allows for even more stable measurements. 【Product Lineup】 ■ GIC-10W (High-precision model for surface structures) ■ GIC-30W (General-purpose model for underground/buried use) *For more details, please refer to the PDF materials or feel free to contact us.

• Geological Survey Company

This catalog introduces the monitoring instruments for landslides and slope failures handled by Geotech Service Co., Ltd. It features a variety of products, including the "Ground Sensor," which can measure the inclination of concrete structures and bedrock, as well as "Hydrological and Meteorological Sensors," "Signal Converters," and "Communication Devices." Please make use of this for selecting products. 【Featured Products (Partial)】 ■ Ground Sensors - General-purpose 2-axis inclinometer "GIC-30W" - High-precision 2-axis inclinometer "GIC-10WD" ■ Hydrological and Meteorological Sensors - Water level gauge (smart water level converter) "GSC-01A" - Electrical conductivity meter "GEC-400-1000" *For more details, please refer to the PDF document or feel free to contact us.

• Monitoring and Control Equipment
• Other measuring instruments
• Other analytical equipment