レックス List of Products and Services

It is compact and lightweight, equipped with a rubber protector, and capable of continuous operation for approximately 24 hours. With the included communication software, you can easily transfer the measurement data recorded in the main unit to a computer. Certified by the Japan Association for Working Environment Measurement.

• Bridge Construction

***Features*** Compliant with the Ministry of Education, Culture, Sports, Science and Technology's "Standards for School Environment Health" screening method / Certified product for building hygiene management by the Minister of Health, Labour and Welfare, designated number 1503. A simple formaldehyde measuring device adapted to the Building Hygiene Management Law. No need to replace reagents for each measurement. Concentration unit display can switch between mg/m3 and ppm. Measurement time can switch between 30-minute measurement mode and 10-minute measurement mode. Digital concentration display. Interference gas effects are controlled (compared to manufacturer standards) by using a DNPH filter. Preparation before measurement can be done indoors. Can store up to 32 measurement data entries. Reduces the impact of VOCs by using a DNPH filter.

• Other civil engineering works

The lightweight and compact body is equipped with a gas introduction pipe, an external alarm (both with an 8m extension), and a memory function, making it versatile for various applications. It detects four types of gases: oxygen (O2), methane (CH4), hydrogen sulfide (H2S), and carbon monoxide (CO). It promptly alerts you to the dangers of oxygen deficiency and gas poisoning.

• Manhole body

***Features*** - Two easy-to-understand display methods (it informs the measured concentration with a digital bar graph and digital numbers). - Alarm function to alert the user of dangerous concentrations, with a flashing red lamp feature. - Compact and lightweight, weighing only 450g. - Extremely user-friendly, can be operated with one hand. - Energy-efficient, with battery life approximately twice that of conventional models. - Flow anomaly detection function (self-diagnoses and alerts for issues such as pump clogging). - Auto range switching function (automatically switches between L range and H range according to gas concentration). - Dedicated for methane measurement. - Intrinsically safe explosion-proof structure (the sensor part has a pressure-resistant explosion-proof design).

• Bridge Construction

***Features*** - High-sensitivity measurement of combustible gas concentrations from 0 to 5,000 ppm. - Two types of concentration display: analog-style digital bar graph and digital numbers. - Alarm notification via buzzer and lamp. - Compact and lightweight, easy to operate while holding. - Operates continuously for about 20 hours on four AA alkaline batteries. - Equipped with a flow anomaly detection function that self-diagnoses and alerts for issues such as pump clogging. - Auto-range switching function that automatically switches between L range and H range according to gas concentration. - Intrinsically safe explosion-proof structure (Exibd II BT3) *The sensor part has a pressure-resistant explosion-proof structure. - Type approval from the Nippon Kaiji Kyokai (NK) No. 06T605 (specification required).

• Manhole body

***Features*** - Measures high concentration gases up to 100 vol%. - Two patterns of concentration display: analog-style digital bar graph and digital numbers. - Alerts with a buzzer and lamp. - Compact and lightweight, easy to operate while holding. - Operates continuously for about 30 hours on four AA alkaline batteries. *Note: This may vary depending on environmental conditions, usage conditions, storage duration, battery manufacturer, etc.* - Equipped with a flow anomaly detection function that self-diagnoses and alerts for issues such as pump clogging. - Features an auto-range switching function that automatically switches between L range and H range according to gas concentration. - Explosion-proof structure: Exibd II BT3 (Intrinsic safety explosion-proof + pressure-resistant explosion-proof). Approved by the Nippon Kaiji Kyokai (NK) Type Approval No. 06T605 (specified requirement).

• Bridge Construction

***Features*** - Measures oxygen concentration from 0 to 40 vol%. - Sensor separation type with a standard 5-meter sensor extension cable. - Can be extended up to 10 meters with an optional extension cable. - Measurement concentration displayed in large digital numbers. - Alarm notification via buzzer. - Buzzer alerts for low battery voltage. - Intrinsically safe explosion-proof structure (i3aG4). - Type approval from the Nippon Kaiji Kyokai (NK) No. 04T613 (specified requirement). - Certified by the Japan Marine Equipment Association (HK) (specified requirement).

• Manhole body
• Bridge Construction
• Other civil engineering works

***Features*** - You can evacuate without inhaling toxic gases, thick smoke, or oxygen-deficient air that may occur during a fire at the work site. - It is a compact type that uses a 2-liter cylinder, so it does not take up much installation space. - It is a simple type that requires no operation of valves or other controls. - By hanging the cylinder from your shoulder and putting on the mask, air is automatically supplied as needed. - Comes with protective goggles and a chemical light that emits light in dark places to indicate your location. - The weight of the air respirator is only 4.8 kg.

• Bridge Construction

***Features*** - It is a pressure demand type air respirator (manual positive pressure switching type). - It has an integrated pressure reducing valve and pressure demand valve. - The inhalation tube is of the flexible hose type, allowing for easy head movement. - You can grip the flexible hose to perform a facepiece seal check. - The backplate is made of copper.

• Railway Construction

***Features*** - Long-duration type This is a long-duration respirator with a nominal usage time of 120 minutes (when the filling pressure of the high-pressure oxygen container is 150 kgf/cm²). - Improved safety and breathing comfort Due to its positive pressure design, it does not leak even if there is a gap between the mask and the face. This provides excellent safety. Breathing resistance has been significantly reduced, allowing for easier breathing (approximately 50% less compared to manufacturer compressed oxygen circulation respirators). It has a built-in inhalation cooling device, ensuring comfortable breathing. The alarm system includes a "breathing circuit closure device" that indicates when the high-pressure oxygen container is empty or when the stop valve is closed, preventing breathing, and a "remaining pressure alarm" that notifies when the oxygen supply is low. With a dedicated status indicator, maintenance and inspections can be easily and reliably performed.

• others

This is a notice from Rex Co., Ltd. regarding the "Weight Floor Impact Sound Generator Bang Machine FI-02."

• Vibration and Sound Level Meter

This is a handheld integrative noise meter that can simultaneously perform noise measurement and real-time frequency analysis in 1/3 or 1/1 octave bands.

• Vibration and Sound Level Meter
• Measurement and analysis equipment leasing and rental

***Features*** You can choose between two types: MODEL6113 (without wind pressure measurement function) or MODEL6113-P (with wind pressure measurement function). - Durable body with a lid, designed for measuring inside pipes and ducts. - Equipped with a large LCD display for better visibility and simplicity. - Comes with a shoulder strap, allowing you to use both hands freely while measuring. - Can store 100 measurement data points in the main unit. - Compatible between the main unit and probe, enabling quick response to sudden probe failures on-site. - Quickly print out data at the measurement site.

• Air conditioning

This is a notice from Rex Co., Ltd. regarding the "Precision Sound Level Meter NA-28."

• Vibration and Sound Level Meter

It is a handheld 2-channel FFT analyzer.

• Vibration and Sound Level Meter

This is a noise generator that applies signal processing techniques using DSP to generate white noise/pink noise from M-sequence pseudo-random noise, and creates band noise using a 1/1 octave filter.

• others

***Features*** - Improved environmental performance achieved through the adoption of a new type of sensor. - Capable of measuring three-dimensional wind speed, including horizontal wind direction and vertical component wind speed (updraft and downdraft). - High-response and high-linearity measurements possible from light winds to strong winds. - No moving parts, eliminating the risk of damage even in strong winds.

• Other construction services

This is a vibration meter designed to use a piezoelectric accelerometer as a detector, capable of accommodating a wide range of vibration measurements.

• Vibration and Sound Level Meter
• others

***Features*** - The body is made of polycarbonate, and by incorporating a waist in the center, it reduces the impact of wind and improves the rain capture rate. - The tipping bucket rain gauge OW-34 for 0.5mm has obtained type certification from the Japan Meteorological Agency. - It allows for stable observation and measurement over a long period at a low cost.

• Other civil engineering works
• stone

***Features*** - By using a lightweight measuring rope and processing the rope's cross-section more compactly than conventional products, it has become less susceptible to the effects of surface tension from water droplets inside the boring pipe. - By mixing copper wire with the conventional stainless steel wire, signals are transmitted more accurately from the electrode to the buzzer. - No grounding required. - This type alerts water levels with an electronic sound. - Made with strong stainless steel wire, it will not easily break unless excessive force is applied (load capacity approximately 120kg, according to the manufacturer) (minimum scale 1cm). - By improving the rope-type water level gauge from a conventional reel case to a plastic one, it has become more compact and lightweight. - The battery replacement has been improved for one-touch operation.

• Airport facilities

This is an announcement from Rex Co., Ltd. regarding the "Light Scattering Digital Dust Meter MODEL 3411."

• Bridge Construction
• Other analytical equipment
• Measurement and analysis equipment leasing and rental

***Features*** Excellent operating temperature range The KADEC21 series supports temperature environments from -25 to +80°C. Long-term battery operation achieved through low power consumption By thoroughly implementing low power operation with TRON OS, continuous measurement for over approximately 300 days is possible with just the built-in battery. *1 A battery level meter function is included, allowing easy visibility of battery remaining. Strong data processing for water level fluctuations with simultaneous recording of water level and rainfall By simultaneously recording instantaneous water level and rainfall, it is easy to assess water level fluctuations caused by rainfall. This is effective for measuring water levels in dams and rivers. Wave averaging processing (wave damping function) In rivers where water level changes frequently, measuring water levels as instantaneous values may not yield accurate data. Easy operation with LCD display and 3 buttons Simple menu operation can be performed intuitively with just three buttons: UP, DOWN, and ENTER. Data transfer to CF card (CF card type) Data can be transferred to a CF card, allowing for easy data collection at the installation site. In addition to iron and stainless steel, a titanium type water level gauge set of 30m is also available (CF card only).

• Airport facilities

We would like to introduce the "Light Scattering High-Sensitivity Digital Dust Meter MODEL3421" from Rex Corporation.

• others

***Features*** - Compared to traditional measurements using buzzers and clocks, it reduces the burden on the observer and allows for more accurate and faster measurements. - The flow rate calibration coefficient can be directly input by the observer. - It is the simplest model, where you only need to select the observation time and press the START SW. The internal microcomputer allows for accurate flow rate calculations down to the millimeter. - The displayed measurement results are recorded by the observer in a field notebook (continuous use for about 8 hours).

• Airport facilities
• River construction

The AEM213-D is a portable electromagnetic induction type flow direction and velocity meter that can measure not only in oceans but also in rivers, canals, and lakes. It has been fully improved from the compass-equipped model ACM210-D and has successfully been miniaturized. It comes standard with a depth sensor and a water temperature sensor, allowing for confirmation of the measurement depth and can also be used for measuring the vertical profile of water temperature. Additionally, the display unit is equipped with a 2MB flash memory calendar function, enabling automatic recording of measurement data while continuing accurate measurements.

• Airport facilities

This is an announcement from Rex Co., Ltd. regarding the "Light Scattering Digital Dust Meter MODEL 3442."

• Measurement and analysis equipment leasing and rental

***Features*** - Automatic sensitivity adjustment according to flow rate. - Measurement data stored in internal memory. - Saved data can be transferred to a computer. - Automatic power-saving mode function. - 20 characters x 4 digits LCD display. - Built-in calendar.

• Airport facilities

In addition to measuring a wide range of wind speeds from 0.1 to 50.0 m/s and wind temperatures, it also has built-in memory and a printer.

• Air conditioning

Simultaneous measurement of wind speed and wind temperature is conducted in high-temperature environments up to 500℃ (with wind speed accuracy compensation range up to 400℃).

• Anemometer

INFINITY is a built-in recording type measuring instrument controlled by a high-performance 16-bit MCU and equipped with a miniSD card as the recording medium. In the COMPACT series, the flash memory was fixed on the electronic board, which required the instrument to be directly connected to a computer for setting observation programs and transferring data. Additionally, since RS-232C was used for data communication, there were numerous requests from users for improvements due to slow transfer times. The new INFINITY has specifications that can resolve all these issues. Users can choose to input observation settings directly from a computer via USB or input settings on a miniSD card removed from the instrument using a computer. Furthermore, by using USB and miniSD cards, the transfer speed has significantly improved. As a result, it enables quick, safe, and easy handling regardless of the field environment.

• Coastal construction

This is a versatile thermal anemometer equipped with memory function, airflow measurement mode, and probe extension rod, suitable for various applications such as indoor environment surveys and duct airflow measurements.

• Environmental Survey

This is a thermal anemometer that measures wind temperature and humidity, has a memory function, and can measure air volume by inputting the duct size.

• Anemometer

The main body can be removed from the hood base, allowing for airflow measurement using a Pitot tube and static pressure measurement using a static pressure measurement probe.

• Anemometer

We measure dust particles (inhalable particulate matter) that are inhaled by the human body in the form of suspended particulate matter (SPM).

• Other analytical equipment

This is a notice from Rex Co., Ltd. regarding the "Dust Monitor DustTrack II MODEL 8530."

• Environmental Survey

In addition to relative comparison, odor index conversion is possible through the creation and input of an index conversion table.

• Other analytical equipment

This is a chlorine meter that measures chloride ions using the ion electrode method, featuring a large and easy-to-read digital display.

• Other analytical equipment

This is a water quality meter that measures iron content using the ion electrode method, featuring a large and easy-to-read digital display.

• Other analytical equipment

***Features*** - It is a handy type that fits in the palm of your hand and is easy to operate. - In addition to illuminance measurement, it can measure illuminance deviation and perform integrated illuminance measurement. - It supports both digital and analog output, allowing connection to computers and recording devices. - It is easy and cost-effective to build a multi-point illuminance measurement system that meets diverse needs, with 2 to 30 points. - The LCD backlight automatically turns on (in low light and hold mode). - Uses readily available AA batteries. - It can measure intermittent light.

• Architectural design office

***Features*** - Domestic sensor equipped All maintenance can be performed domestically. No EL application procedure required. - Excellent basic performance 640×480 pixels. Minimum detectable temperature difference 0.04℃. - Visible image synthesis function Equipped with a visible camera. Overlay display of thermal and visible images. - Excellent shooting assistance features Auto focus. Equipped with LED light and laser pointer. Voice recording and memo function. - Diverse measurement functions Real-time multi-point emissivity correction (H2630: 5 points). External trigger recording. - 5.6-inch large LCD monitor Power-saving LED backlight. Bright and easy to see outdoors. 180° inversion display function included. - Reduces outdoor work burden Battery-operated for 2 hours. IP54 dustproof and splash-proof structure. Weight reduced by 200g compared to previous models.

• Foundation construction

***Features*** - Soil field density moisture meter with built-in microcomputer (RI instrument). - Can determine compaction status on-site. - Capable of measuring any soil type. - Measures quickly in just 1 minute. - Safe due to low-level radiation source, and easy to use. - Equipped with computational functions for data analysis. - Comes with a printer for saving measurement data.

• Dam construction

***Features*** - This device replaces the unit volume of soil at the site with dry sand, allowing for indirect measurement of the soil volume, and is applicable for cohesive soil, non-cohesive soil, or gravelly soil. - It complies with JIS A 1214 standards.

• Pipeline Construction

***Features*** - It was devised at the Ministry of Construction's Civil Engineering Research Institute, and it can measure the relationship between the number of impacts of a weight and the amount of penetration, allowing for the assessment of the relative bearing capacity strength of road subgrades and the determination of bearing capacity values, similar to the purposes of CBR tests and plate load tests (N value (Nd value) is obtained). - Continuous data from the surface to the required depth can be obtained, eliminating concerns about underestimating the influence of the lower layers of the subgrade. - It is also used for inspections of restoration work after the completion of road gas and telephone line construction.

• Dam construction

***Features*** - The "Portable Dynamic Cone Penetration Tester" is designed to easily determine the penetration resistance of soil at the source location by freely dropping a 5kg hammer from a height of 50cm. - By connecting the sections where the penetration resistance changes from the test results, a cross-sectional diagram of the soil layers can be created.

• Earthworks

It is the easiest to operate portable static cone penetration tester, which measures the penetration resistance required to statically push the tip cone into the ground manually using a probing ring, allowing for the estimation of the relative strength, cohesion, unconfined compressive strength, and allowable bearing capacity of cohesive soils. Soft ground primarily composed of soft clay, silt, or peat is optimal, and it is convenient for measuring the approximate cohesion of cohesive soils and depth in relation to wind speed, as well as for understanding the outline of the ground profile.

• Earthworks