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Gas Monitor Product List and Ranking from 19 Manufacturers, Suppliers and Companies | IPROS GMS

Last Updated： Aggregation Period:Feb 04, 2026～Mar 03, 2026
This ranking is based on the number of page views on our site.

Gas Monitor Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Feb 04, 2026～Mar 03, 2026
This ranking is based on the number of page views on our site.

  1. 三協インタナショナル Tokyo//Trading company/Wholesale
  2. トリコ 東京支店 Tokyo//Industrial Electrical Equipment
  3. アプリクス Tokyo//Testing, Analysis and Measurement
  4. 4 レックス Hyogo//Testing, Analysis and Measurement
  5. 4 サニー・トレーディング Kanagawa//Machine elements and parts
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Gas Monitor Product ranking

Last Updated： Aggregation Period:Feb 04, 2026～Mar 03, 2026
This ranking is based on the number of page views on our site.

  1. Portable Gas Monitor "BIOGAS5000" 三協インタナショナル
  2. Insulating Oil Hydrogen Gas DGA Monitor "GRIDSCAN 5000" トリコ 東京支店
  3. CO2 Incubator [G100] 三協インタナショナル
  4. Portable Gas Monitor "GA5000" 三協インタナショナル
  5. 5 MSA Challigard 5000 Refrigerant Gas Monitor サニー・トレーディング

Gas Monitor Product List

1～30 item / All 76 items

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High Performance Process Gas Monitor Qulee HGM Series

High Performance Process Gas Monitor Qulee HGM Series

Meeting all needs from various research and development applications to process management of vacuum equipment【ULVAC】.

Introducing the high-end model of ULVAC's new residual gas analyzer Qulee series, the "Qulee HGM," which achieves revolutionary simplicity and ease of use. It realizes a high sensitivity of 2.5 × 10-6A/Pa (Faraday cup), catering to all needs from various research and development applications to process management in vacuum equipment. 【Specifications】 ○ Power supply voltage: DC24V ±10% 50W ○ Weight (sensor unit/analysis tube): 2.4kg/0.81kg ○ Operating temperature range: 10 to 40℃ ○ Operating humidity range: 15 to 80% (no condensation) ○ IP protection rating: IP30 (sensor unit) For more details, please contact us or download the catalog.

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Basic Process Gas Monitor Qulee BGM Series

Basic Process Gas Monitor Qulee BGM Series

It is ideal for equipment management of vacuum deposition devices and various vacuum furnaces. [ULVAC]

This is ULVAC's new residual gas analyzer, realized with revolutionary simplicity and ease of use. It marks the arrival of a new standard in process monitoring, shaped by the voices of equipment technology professionals from various production lines. It is ideal for managing vacuum deposition systems and various vacuum furnaces. 【Features】 - Integrated display design... Measurement possible without a computer - Easy operation - One Click function... Simple for anyone. No complex operations required - Enhanced leak test functionality - Capable of total pressure measurement - Qulee QCS software is standard For more details, please contact us or download the catalog.

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Reactive Process Gas Monitor Qulee RGM-202/302

Reactive Process Gas Monitor Qulee RGM-202/302

Process monitor with differential exhaust system compatible with reactive processes such as etching and CVD [ULVAC].

The Qulee RGM-202/RGM-302 is a process monitor equipped with a differential exhaust system that supports reactive processes such as etching and CVD in the Qulee series. Thanks to ULVAC's unique ion source and exhaust system structure, it offers excellent corrosion resistance to reactive gases and enables stable measurements over long periods. 【Specifications】 ○ Mass: Exhaust system: 57 kg / Control system: 38 kg ○ Power supply voltage: AC100V 15A ○ Compressed air: Dry N2: 0.4 to 0.7 MPa (φ6 quick connector) ○ One Click function: Yes / He/H2O/N2/O2/Any gas ○ PC interface: RS-232C/485 For more details, please contact us or download the catalog.

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Intrinsic Safety Explosion-Proof Multi-Gas Monitor / Model Number MI10X-3123-A

Intrinsic Safety Explosion-Proof Multi-Gas Monitor / Model Number MI10X-3123-A

Domestic first: Hydrogen sulfide (H2S) alarm setting value compatible with 1ppm.

・Intrinsic safety explosion-proof structure ・Can be used as explosion-proof equipment even in hydrogen and acetylene atmospheres

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Portable Gas Monitor (Oxygen) / Model Number MI10OX-04GR

Portable Gas Monitor (Oxygen) / Model Number MI10OX-04GR

Equipped with a new type R sensor for high functionality and durability, featuring one of the longest continuous usage times in the world, and a diverse lineup of sensors.

■Evolution to High Functionality and Durability ●Achieves a long continuous usage time of 9000 hours Realizes one of the longest continuous usage times in the class of compact portable gas monitors, approximately 9000 hours (*). ●Passes 7m drop durability test Even if dropped during high-altitude work, the risk of malfunction is low, allowing for safe use. ●Equipped with a new high-functionality and high-durability R sensor - The sensor has been renewed. It excels in durability and performance, achieving a 3-year sensor warranty. - Usable in a wide temperature range (-40 to +60°C). - Offers a carbon monoxide sensor that is minimally affected by hydrogen interference, suitable for environments coexisting with hydrogen, such as the steel market. - Features Japan's first dual sensor for carbon monoxide and oxygen, enabling two-component detection in a compact portable format (carbon monoxide and oxygen concentrations can be displayed simultaneously). ■Rich Features and Reliable Design - Protection rating: Equivalent to IP66/67, providing a dustproof and waterproof structure for outdoor work. - Designed with intrinsic safety explosion-proof structure (domestic explosion-proof/ATEX/IECEx), making it usable in hazardous locations. ■Choice of Power Supply Specifications: Rechargeable Battery / Dry Cell Offers two power supply options: a dry cell specification that can be used immediately and a rechargeable battery specification that can be reused (please specify when ordering).

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Small Gas Monitor (Oxygen) / Model Number MI10GW-4R-O2

Small Gas Monitor (Oxygen) / Model Number MI10GW-4R-O2

Peace of mind by your side. Evolved into a wearable device at just 45g.

● The world's smallest and lightest class of single-component portable gas monitor ● Compact and lightweight design that does not interfere with work ● Can be used in a wristwatch style with the included accessory (watch strap) ● 3-year sensor warranty ● A rich lineup of 6 types of gas specifications in the series ● Dustproof and waterproof structure for outdoor work (protection rating: equivalent to IP66/68 (2m, 1h)) ● Intrinsically safe explosion-proof structure suitable for use in hazardous locations (domestic explosion-proof/ATEX/IECEx)

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Portable 25 types of flammable gas monitor / Model number MI10GP-2111R

Portable 25 types of flammable gas monitor / Model number MI10GP-2111R

Detection of 25 types of gases with switchable (direct concentration reading) capability.

It is possible to detect and directly read the concentration of 25 types of gases, including methane, hydrogen, BTX (benzene, toluene, xylene), and alcohol-based gases, with a single device.

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MSA Challigard 5000 Refrigerant Gas Monitor

MSA Challigard 5000 Refrigerant Gas Monitor

Real-time detection of refrigerant leaks as small as 1 ppm. High-precision refrigerant gas monitor equipped with PAIR technology.

Chillgard 5000 is a next-generation refrigerant gas monitor equipped with patented Photoacoustic Infrared (PAIR) technology developed by MSA. It complies with domestic and international regulations and standards such as ASHRAE 15, EPA, EN 378, and ISO 5149, making it ideal for monitoring refrigerant leaks in mechanical equipment rooms and refrigeration rooms. It reliably detects trace leaks at the 1 ppm level and provides visual and audible alarms both inside and outside the machinery room, as well as automatic control of ventilation. It is resistant to temperature and humidity changes, achieving long-term stability and low maintenance, ensuring the safety of facilities and operators.

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Monitoring ozone monitor / Diffusion-type ozone gas monitor

Monitoring ozone monitor / Diffusion-type ozone gas monitor

Ozone gas monitor for monitoring the diffused ozone gas in the room (warehouse). Sensor replacement and calibration can be easily performed!

This is an ozone gas concentration meter that emphasizes performance, maintainability, and cost in areas where ozone gas is used. Sensor replacement and calibration can be easily performed. Depending on the environment and your preferences, it can be powered by either AC or DC! It is a diffusion-type ozone gas monitor available in both 1 ppm and 10 ppm models. It allows for easy operation in ozone gas usage areas and has achieved convenient maintenance.

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携帯型　オゾンガスモニタ

携帯型　オゾンガスモニタ

測定場所を選ぶことなく、さまざまなオゾン利用環境下での濃度測定が可能！ オプション品でキャリーケースのご用意もあります。

携帯型定電位電解法オゾンガスモニタ（OZG-EBシリーズ）は、測定場所を選ぶことなく、さまざまなオゾン利用環境下での濃度測定を可能にする測定機です。 また、オプションを利用することにより0～1Vの出力を得ることも可能です。 480時間以上の長寿命、暖機運転をおこなわずに、すぐに測定が可能、電池の残量を確認することも可能などの特徴があります。 詳しくはお問い合わせ、またはカタログをご覧ください。

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Insulating Oil Hydrogen Gas DGA Monitor "GRIDSCAN 5000"

Insulating Oil Hydrogen Gas DGA Monitor "GRIDSCAN 5000"

Real-time monitoring of hydrogen gas concentration and oil temperature in transformer insulation oil!

The "GRIDSCAN 5000" is a DGA monitor for hydrogen gas in insulating oil that detects the concentration of hydrogen gas generated from transformer insulating oil and changes in oil temperature in real-time, preventing power outages and ensuring stable operation of transformers. It achieves long life with its unique solid-state hydrogen-specific alloy technology. There is no need for background gas, carrier gas, or any other consumables, and automatic calibration within the sensor eliminates the need for regular inspections and maintenance. 【Features】 ■ 10-year warranty for long life ■ No need for consumable replacements ■ No maintenance required ■ Real-time monitoring *For more details, please refer to the PDF document or feel free to contact us.

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Portable Gas Monitor "GA5000"

Portable Gas Monitor "GA5000"

It is a landfill gas monitor from QED (Geotech). It is used for landfill gas monitoring, waste thermal conversion, and on-site investigations.

This is a handheld gas monitor that uses a built-in pump to draw in gas and measures the concentrations of five types of gases: CO2, CH4, O2, CO, and H2S. The concentrations of CO and H2S can be selected (at the time of order). Options for adding CO concentration H2 compensation, NH3 sensor, temperature probe, and flow sensor are available. It comes with a three-year warranty. For more details, please contact us or download the catalog.

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Biogas3000

Biogas3000

This is a stationary gas monitor for measuring the concentration of biogas produced by anaerobic digestion (methane fermentation).

Gas is drawn using a storage pump, and the concentrations of CO2, CH4, and O2 are measured. H2S, H2, and CO are optional, and for H2S, you can choose from a range between 50 to 10,000 ppm, allowing you to monitor the process before and after desulfurization. Up to four sampling points can be selected at the time of order.

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Toxic gas monitor (sulfur dioxide) rental

Toxic gas monitor (sulfur dioxide) rental

Intrinsic safety explosion-proof structure, gas detector

Remote measurement is possible with a remote cable! Ensuring the safety of workers... Ensuring the safety of hazardous material handlers...

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Portable Gas Monitor GX-8000 TYPE B Rental

Portable Gas Monitor GX-8000 TYPE B Rental

Flammable (LEL), O2, H2S, CO detectable and simultaneously displayed 4-component type.

The GX-8000 TYPE B is a portable gas monitor that can detect and simultaneously display four components: flammable gases (LEL), O2, H2S, and CO. It is ideal for preventing explosions, oxygen deficiency, and poisoning accidents at various work sites. It is compact, lightweight, and easy to carry, with hydrogen explosion-proof compliance: Exia II CT4X, and it has a protection rating equivalent to IP67, ensuring safety even in harsh environments. For more details, please contact us.

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Portable Gas Monitor GX-8300 TYPE A Rental

Portable Gas Monitor GX-8300 TYPE A Rental

High visibility on a large screen! A portable gas monitor with an explosion-proof structure, safe for hazardous areas.

The "GX-8300 TYPE A" is a portable gas monitor with a large display and backlight, making it easy to see in dark environments. It can detect methane, O2, hydrogen sulfide, and carbon monoxide. It has obtained intrinsic safety explosion-proof certification Exia2CT4X, allowing it to be safely used in environments with flammable gases such as hydrogen and acetylene. When an alarm is triggered, the lamp flashes, providing reassurance even in places where the alarm may be hard to hear. It helps prevent explosions, oxygen deficiency, and poisoning accidents at various work sites. 【Features】 ■ Obtained intrinsic safety explosion-proof structure Exia2CT4X ■ Protection rating equivalent to IP67 ■ High visibility with backlit display ■ Improved visibility during alarms *For more details, please contact us or download the catalog.

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Portable Gas Monitor GX-8300

Portable Gas Monitor GX-8300

The GX-8300 is a portable gas monitor that is ideal for safety management with its large screen display.

Equipped with 21 alarm lamps, it enhances visibility during alarms. With a protection rating equivalent to IP67, it is reliable even in harsh environments, making it an ideal gas monitor for work sites. Its intrinsically safe explosion-proof structure allows for detection even in specially hazardous areas under hydrogen and acetylene atmospheres. *Please select one gas type from Type-A1/A2/B1/B2/C1/C2/D1/D2/E/G1/G2.

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Oxygen Gas Monitor GX-8000 Type-O2

Oxygen Gas Monitor GX-8000 Type-O2

The GX-8000 Type-O2 is a portable gas monitor for measuring oxygen concentration, equipped with a loud buzzer that exceeds 95 dB.

Hydrogen explosion-proof ExiaCT4X, powerful suction of 0.75/min or more. *Please select whether or not gas alarm is required from the options below: With gas alarm function (TypeO2 L) Without gas alarm function (TypeO2 N) With gas alarm function inspection item (TypeO2 L) *For marine use Without gas alarm function inspection item (TypeO2 N) *For marine use

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Portable Ozone Gas Monitor OZG-EB-01/02

Portable Ozone Gas Monitor OZG-EB-01/02

It is a measuring device that allows concentration measurements in various ozone-utilizing environments without the need to select a measurement location.

Sensor replacement can be easily done by plugging and unplugging the connector. Additionally, after zero adjustment, span adjustment can be performed simply by aligning with the sensor correction coefficient. *Please select one of the following: - OZG-EB-01 (Measurement range: 0 to 1.00 ppm) - OZG-EB-02 (Measurement range: 0 to 10.0 ppm)

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NS Gas Monitor

NS Gas Monitor

The sulfide method, which can efficiently recover valuable metals from heavy metal wastewater, can be quantitatively managed using the NS gas monitor.

The sulfide method for treating heavy metal wastewater has superior sediment characteristics compared to the hydroxide method. However, the generation of hydrogen sulfide gas has traditionally made it less favored. However, by using an NS gas monitor, it is possible to prevent the generation of hydrogen sulfide and colloid formation due to polysulfide production.

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Portable Gas Monitor 'CO-04BT(C-)/CX-04BT'

Portable Gas Monitor 'CO-04BT(C-)/CX-04BT'

Peace of mind with Bluetooth connectivity! Usable in a wide temperature range (-40 to +60℃).

The "CO-04BT(C-)/CX-04BT" is a portable gas monitor that can communicate with smartphones and tablets using Bluetooth. It has a protection rating equivalent to IP66/67, ensuring a dustproof and waterproof structure suitable for outdoor work. It can be used in a wide temperature range (-40 to +60°C). Additionally, it excels in durability and performance, offers a 3-year sensor warranty, and can be equipped with a heat-resistant case, making it safe for use in the steel and iron market. 【Features】 ■ Equipped with Bluetooth ■ Performance improvement with newly developed R sensor ■ Safe design for use anywhere ■ Power supply options available with rechargeable batteries or dry batteries *For more details, please refer to the PDF document or feel free to contact us.

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Portable Gas Monitor "GX-3R Pro"

Portable Gas Monitor "GX-3R Pro"

Introducing a portable gas monitor equipped with Bluetooth! It is multifunctional and high-performance.

The "GX-3R Pro" is a Bluetooth-enabled portable gas monitor. It features sensors for combustible gases, oxygen, carbon monoxide, hydrogen sulfide, as well as carbon dioxide, nitrogen dioxide, and sulfur dioxide, which can be selected according to your needs. Additionally, it is equipped with a high-performance new R sensor that significantly improves the performance of conventional sensors, and the sensors come with a three-year warranty for your peace of mind. 【Features】 ■ Bluetooth compatible ■ Can detect 5 components (4 components + 1 additional component) ■ Can use both rechargeable and dry batteries ■ Supports display in 11 different languages ■ Easy-to-read full dot display ■ Equipped with a new R sensor with excellent long-term stability *For more details, please refer to the PDF document or feel free to contact us.

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Portable Gas Monitor "GX-8000"

Portable Gas Monitor "GX-8000"

A large screen with a backlight for easy visibility! Packed with features for safe and reliable work.

The "GX-8000" is a portable gas monitor capable of simultaneously detecting five components, featuring an explosion-proof and rugged structure. It is compact and lightweight, making it easy to carry. Using a dedicated waist belt (optional) significantly enhances wearability and stability during work. Packed with features for safe and reliable operation, it can be used in various fieldwork applications, including ships, civil engineering, tunnels, and electrical installations, to prevent explosions, oxygen deficiency, and poisoning accidents. 【Features】 ■ Compact and lightweight, easy to carry ■ Powerful suction with a high-flow pump ■ Large display with backlight for easy visibility ■ High-brightness lamp for visibility and a loud buzzer for clear sound ■ Simultaneous concentration display of digital numbers and analog bar meter *For more details, please refer to the PDF document or feel free to contact us.

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Portable Gas Monitor "RX-8000"

Portable Gas Monitor "RX-8000"

Measurement in zero hazardous locations is also possible! Flammable gases can be measured from low concentrations to high concentrations.

The "RX-8000" is a portable gas monitor capable of high-precision measurement of HC/CH4 even in inert gases and N2. It employs an infrared combustible gas sensor that is not affected by oxygen concentration during measurement. Furthermore, it has high selectivity and is hardly influenced by coexisting gases or water vapor. Additionally, we offer the "RX-8500," which can handle various operations on LNG ships with a single unit, and the "RX-8700," which can measure high concentrations of H2S. 【Features】 ■ Capable of measuring combustible gases (HC or CH4) from low to high concentrations ■ Equipped with an infrared sensor that maintains high precision even in inert gases and N2 ■ Intrinsically safe explosion-proof structure ■ Compliant with amendments to the SOLAS Convention *For more details, please refer to the PDF document or feel free to contact us.

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Optical Wave Interference Gas Monitor "FI-900"

Optical Wave Interference Gas Monitor "FI-900"

Equipped with a long-term stable optical interference sensor! Suitable for gas concentration control in processes.

The "FI-900" is an optical wave interference gas monitor that employs a sensor with 80 years of proven performance. It can also handle corrosive gases such as NH3 and VCM. It features an enhanced self-diagnostic function, and with MODBUS communication, you can check not only gas concentration but also the status. Due to its pressure-resistant explosion-proof structure, it is suitable for preventing VOC explosions, managing concentrations, and measuring hydrogen purity in H2 environments. 【Features】 ■ High reliability with an optical wave interference sensor that has 80 years of proven performance ■ Capable of handling corrosive gases such as NH3 and VCM ■ Pressure-resistant explosion-proof structure suitable for H2 environments (domestic explosion-proof/ATEX/IECEx) ■ Enhanced self-diagnostic function, capable of checking not only gas concentration but also status via MODBUS communication ■ Ideal for preventing VOC explosions, managing concentrations, and measuring hydrogen purity *For more details, please refer to the PDF materials or feel free to contact us.

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Optical Wave Interference Gas Monitor "FI-8000"

Optical Wave Interference Gas Monitor "FI-8000"

It is also possible to add or change the measurement gas! For precise measurement of various gas concentrations.

The "FI-8000" is an optical wave interference gas monitor that can measure up to 8 types of gases with a single unit. In addition to the normal continuous measurement mode, the intermittent measurement mode allows for recording gas concentration values and timestamps at set intervals. Thanks to its large, easy-to-read LCD screen, it displays large numbers and characters, enabling smooth confirmation of gas concentrations and various operations. 【Features】 ■ Capable of measuring up to 8 types of gases with a single unit ■ Continuous measurement / intermittent measurement modes available ■ Two measurement methods ■ Protection rating equivalent to IP67 ■ Easy-to-read large LCD screen ■ Intrinsically safe explosion-proof structure *For more details, please refer to the PDF document or feel free to contact us.

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[Labor Accident Case] Carbon monoxide poisoning that occurred in a pump well at a water supply intake facility.

[Labor Accident Case] Carbon monoxide poisoning that occurred in a pump well at a water supply intake facility.

Introducing a case of carbon monoxide poisoning that occurred in a pump well at a water supply intake facility.

Three workers were engaged in the replacement of the backflow prevention valve on the water supply pipe installed in the pump well. While using a submersible pump driven by a gasoline engine to draw water, exhaust gases accumulated in the pump well, causing the three workers to report feeling unwell and lose consciousness. Two victims who remained in the pump well were rescued by staff from the water purification plant who arrived on the scene. One individual managed to escape on their own, and all three were transported to the hospital, where they were hospitalized for 11 days. [Recommendations] - Use gas detectors to confirm the effectiveness of ventilation. - Work while ensuring safety with a portable gas monitor. *For more details, please refer to the PDF document or feel free to contact us.*

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CA Multi-Gas Monitor "CD-2000M"

CA Multi-Gas Monitor "CD-2000M"

Measurable trace concentrations! Each main sensor can be independently attached and can be installed separately.

The "CD-2000M" is an indoor air monitor that can measure gas concentrations at the location where it is installed, using five types of sensors. The measurement range for O2 concentration, necessary for the respiration of stored agricultural products, is 0 to 25%. This product can widely measure CO2 concentrations generated by plant metabolism from 0 to 25%. Additionally, the main sensors are independently mounted, allowing for separate installation. 【Features】 ■ Capable of measuring CO2 concentrations generated by plant metabolism from 0 to 25% ■ Can measure ethylene, which promotes plant ripening, from 0 to 10 ppm ■ Capable of measuring trace concentrations ■ Uses capacitive humidity sensors and high-precision RTD temperature sensors ■ Suitable for CA systems, mushroom cultivation, vinyl houses, etc., where high-precision gas measurement is required *For more details, please refer to the PDF document or feel free to contact us.

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Portable Multi-Gas Monitor 'GX-6000' [Rental]

Portable Multi-Gas Monitor 'GX-6000' [Rental]

A portable multi-gas monitor capable of simultaneously detecting up to 6 types of gases.

The "GX-6000" is a portable multi-gas monitor equipped with a PID sensor. It can simultaneously detect up to six types of gases, including combustible gases, oxygen, hydrogen sulfide, carbon monoxide, and volatile organic solvent gases (VOCs). It is suitable for the safe management of chemical substances that are subject to mandatory risk assessment. 【Features】 ■ Capable of detecting up to 6 types of gases ■ For self-management of hazardous chemicals ■ Japanese display available ■ Panic alarm & man-down alarm ■ Effective for improving work efficiency * For more details, please refer to the PDF materials or feel free to contact us.

  • Rental/lease
  • Other electric meters
  • Gas Monitor

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Portable Gas Monitor (Oxygen) 'OX-03' [Rental]

Portable Gas Monitor (Oxygen) 'OX-03' [Rental]

Measures to prevent oxygen deficiency at underground construction sites!

【Features】 ■ Standard protective cover included to protect the main unit from scratches, dirt, and impacts ■ Compact and lightweight design that does not interfere during operation ■ Intrinsically safe explosion-proof structure suitable for use in hazardous locations ■ Compliant with JIS T 8201:2010 for oxygen deficiency measurement oxygen concentration meters

  • Other environmental analysis equipment
  • Gas Monitor

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