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<Features> ■ Timer mode allows flow rate settings from 50 to 500 mL/min ■ Constant volume mode allows flow rate settings from 10 to 500 mL/min (10 to 49 mL/min is intermittent sampling at a suction flow rate of 50 mL/min) ■ Constant flow function automatically controls flow rate changes due to load variations ■ Simultaneous display of suction flow rate, suction time, and cumulative flow, allowing for easy confirmation at a glance without switching screens ■ Quiet design that minimizes operational noise ■ Automatic start function begins sampling after the set time ■ In program mode, up to 5 sampling conditions can be registered in advance ■ Instantaneous flow and cumulative flow are automatically corrected to values at 20°C or 25°C (user-defined setting) ■ With the optional lithium-ion rechargeable battery and automatic switching to dry batteries, it can be used for up to 110 hours (90 hours with lithium-ion battery + 20 hours with dry batteries / when using activated carbon tube 258-20 at a suction flow rate of 200 mL/min)

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Introducing the Mini Monitor Series GOA-7H/GOA-7H-S from Gas Tech Co., Ltd. It is a gas alarm that measures oxygen concentration and issues warnings. It can quickly and accurately measure oxygen levels in various work environments. *The GOA-7H-S comes with a 5m sensor cable.

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This is an introduction to the Mini Monitor Series CM-7B from Gas Tech Co., Ltd. It is a gas detection alarm that measures carbon monoxide concentration and issues warnings. It is directly worn by the operator to continuously monitor the carbon monoxide concentration they are exposed to in real-time during work. It features an intrinsically safe explosion-proof design.

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This is an introduction to the Mini Monitor Series HS-7A/HS-7A-S from Gas Tech Co., Ltd. It is a gas alarm meter that measures hydrogen sulfide concentration and issues warnings. It can be used for measurements before work in areas where there is a risk of hydrogen sulfide poisoning, and it can be worn on the body for real-time monitoring. *The HS-7A-S comes with a 5m sensor cable.

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When the target gas is drawn into the detection tube using a gas sampler, the reagent inside the detection tube changes color due to a chemical reaction. The concentration of the target gas can be read from the scale at the tip of the discoloration layer.

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The GHS-8AT diffusion-type hydrogen sulfide detector can be suspended in manholes and sewage pits, allowing for unmanned and continuous monitoring of hydrogen sulfide concentration in sewage facilities. Please utilize it for corrosion and odor control in sewage facilities.

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• Data Logger

<Features> ■ Compact and lightweight, weighing only 600g, making it easy to carry ■ High reliability with CO measurement accuracy of ±1ppm (range of 0-10ppm) ■ Energy-saving switch for battery conservation ■ Lighting switch for easy reading in dark places ■ CO sensor can be replaced by the customer ■ Operation instructions are displayed on the LCD screen for easy understanding ■ Supports three power sources (dry batteries/nickel-hydride rechargeable batteries/AC power) ■ Continuous measurement for 24 hours possible (using optional AC adapter) ■ Equipped with logging function

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【Features】 ● Compact and lightweight ● Two-stage alarm with lamp, buzzer, and vibration ● Oxygen 21% and zero toxic gas calibration, automatic calibration for toxic gases ● User-replaceable batteries and sensors ● Intrinsically safe explosion-proof design ● Capable of both remote measurement and body-mounted measurement

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<Features> ■ Flow rate settings from 50 to 1000 mL/min, capable of collecting ethylene oxide, mercury and its compounds, acetaldehyde, and formaldehyde using the hazardous air pollutant measurement method manual. ■ Instantaneous flow accuracy of ±3% (during specified calibration), ensuring high precision. ■ Clear simultaneous display of flow rate and suction time. ■ Dustproof and drip-proof design (equivalent to IP54), providing safety even in rainy weather. ■ Continuous suction possible during power outages with backup power supply. ■ The collection tube attachment rotates, allowing the main unit to be installed at any angle. ■ Instantaneous flow and cumulative flow automatically corrected to values at 20°C or 25°C (user-defined setting).

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【Features】 ● 21% adjustment with one-touch operation ● Noticeable alarm sound and alarm lamp ● Wide and easy-to-read digital display ● Energy-saving design ● Neatly stores both the sensor and cord after work is finished ● Large carrying case for safe transport and storage

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<Features> ■ Capable of setting flow rates from 50 to 250 mL/min with detection tubes and other attachments ■ Automatic control of flow rate changes due to load fluctuations with constant flow function ■ Instantaneous flow and cumulative flow automatically corrected to values at 20°C ■ Sampling starts after a set time with automatic start function ■ Automatically stops based on installation time and volume, displaying cumulative flow and required time ■ Achieves pulsation-free suction with the configuration of the ventilation system ■ Dedicated detection tubes for 10-minute sampling for work environment measurement are available ■ Detection tubes for indoor environments, such as formaldehyde, are also usable ■ Various solid collection tubes, such as activated carbon tubes, are available ■ Intrinsically safe explosion-proof structure

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