Gas Detectors - Portable Multi-Gas
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Biosystems Toxi LTD
Portable multi gas detectors are used in potentially hazardous environments where multiple gases are a safety concern. These detectors are mainly used in refineries, semiconductor manufacturing plants, landfills, various construction fields and chemical processing confines.
If you are interested in calibration gas to help in the maintenance of your equipment or if you're wishing for our knowledgeable support team to calibrate your gas detection equipment, we are always here to help!
Looking for a specific brand like Gastech or BW Technologies? Try our Gas Detection Manufacturers page!
OSHA requires the use of O2, LEL, and at least one toxic as for confined space entry. To learn more, please download this PDF.
Gas Detection Calibration Frequency Statements Can Be Found HERE
Portable Multi-Gas Detector
Biosystems MultiVision
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The MultiVision Gas Detector provides top grade reliable safety and convenience due to its compact size and rugged construction. Equipped with four independent sensors for the detection of oxygen, combustible gases and vapors, carbon monoxide and hydrogen sulfide.
Portable Multi-Gas Detector
Biosystems Cannonball 3
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The Cannonball 3 gas detector is designed to address a large range of health and safety concerns for the work environment. Oxygen, combustible gas and vapor detection is handled seamlessly through standard configuration, however an optional high sensitivity HC-PPM LEL can provide a broader range of detection at PPM levels for multiple types of hazardous gases.
Portable Multi-Gas Detector
Biosystems PhD Lite
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Monitoring up to four atmospheric hazardous gases simultaneously, the PhD Lite Gas Detector is built tough. It's metal-plated case can handle the roughest of work environments, yet it is compact enough to perform with ease. You can monitor the air for oxygen and other combustible gases through the use of one button.
Portable Multi-Gas Detector
Biosystems MultiPRO
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The MultiPro Gas Detector provides true one-button operation including calibration, and offers readings of up to four gases in real time. Equipped with a built in event logger that can store information for up to 20 events including time and duration, average and max readings, and sensor type.
Portable Multi-Gas Detector
Biosystems PhD5
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The Biosystems PhD5 Gas Detector is capable of monitoring a total of five atmospheric hazards at the same time due to it's "Duo-Tox" two-channel CO/H2S sensor along with three additional channels for other combustible gas and oxygen detection.
Portable Multi-Gas Detector
Biosystems PhD Plus
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The PhD Plus portable Gas Detector can monitor atmospheric conditions for a total of four hazardous gases. Compact but very rugged, this gas detector measures oxygen, combustible gases and up to tow additional toxic gases.
Portable Multi-Gas Detector
Biosystems PhD Ultra
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The PhD Ultra portable Gas Detector is a true powerhouse of versatility and scalability. Equipped with a built in datalogger, you can keep track of environment temperature, location, gas readings, user ID and much more. The PhD Ultra is capable of detecting and measuring four atmospheric hazards at once; oxygen, combustible gas and up to two additional toxic gases.
"Docking Station" Portables
Biosystems IQ Docking Station
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The Biosystems' IQ Docking System: A flexible instrument and data management system that automates the maintenance of your Biosystems gas detectors. Minimize the costs and time associated with manually calibrating your gas detectors by utilizing up to ten instrument-docking modules.
"Docking Station" Portables
Biosystems MultiPRO Express Docking Station
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The MultiPro IQ Express Docking Station: An automatic calibration station and data download center for the MultiPro gas detector. Drop the detector into the dock and the MultiPro IQ Express does the rest. Fully automated bump test station that performs up to eight critical tests.
Gas Detection Sampling Accessories
BW Technologies Sampler Accessories
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Provides a continuous draw from remote locations up to 50 ft. / 15.5 m away. The Sampler is compatible with BW single-gas detectors as well as the GasAlertMicro and the BW Defender multi-gas con?ned space detectors. The intrinsically safe Sampler operates continuously once activated. Built-in low ?ow alarms and a unique self-test feature ensure peak performance.
Portable Multi-Gas Detector
BW Technologies GasAlert Micro5
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The new GasAlertMicro 5 gas detector provides protection from up to five potential atmospheric hazards including oxygen, combustible and toxic gases, GasAlertMicro 5 is unparalleled in its versatility, capability and overall value. BW's newest addition to its water-resistant line of portable gas detectors has transformed the market with its matchless array of features.
Portable Multi-Gas Detector
BW Technologies GasAlert Micro5 PID
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The GasAlertMicro5 PID portable gas detector can simultaneously monitor up to five atmospheric hazards including volatile organic compounds (VOC's), oxygen, combustible gas (% LEL), and a wide selection of individual electrochemical toxic sensors. Compact and lightweight, the GasAlertMicro5 PID activates audible, visual and vibrating alarms in the event of a low, high, TWA or STEL alarm condition.
Portable Multi-Gas Detector
BW Technologies GasAlert Micro
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The GasALertMicro gas detector has a comprehensive range of features and functions; GasAlertMicro has set a new benchmark in multi-gas detection. At just 7.3 oz. (211 g), the rugged GasAlertMicro is unrivalled in performance and value-added affordability.
Portable Multi-Gas Detector
BW Technologies GasAlert Max
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With the GasAlertMax gas detector you can continuously monitor for 2, 3, or 4 hazardous gases, The GasAlertMax sets the standard for ease of use, reliability and effective protection.
Portable Multi-Gas Detector
BW Technologies GasAlert MicroClip
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The GasAlertMicroClip: Offering simultaneous monitoring of up to four gases (H2S, CO, O2 and combustibles). Perfectly suited for confined space entry, HAZMAT response, and a wide range of other applications requiring gas monitoring
Portable Multi-Gas Detector
BW Technologies GasAlert Micro 5 IR
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Simultaneously monitors up to five atmospheric hazards including carbon dioxide (CO2), oxygen (O2), combustible gas (%LEL), and a wide selection of toxic gases.
Portable Multi-Gas Detector
BW Technologies GasAlert Clip Extreme 3
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Ready to use, provides up to three years of continuous maintenance-free operation from the day of activation, with no battery or sensor replacement.
Portable Multi-Gas Detector
BW Technologies GasAlert 100
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The disposable GasAlert 100 can monitor H2S and CO for 100 days after activation. Equipped with an advanced electrochemical sensor and microcontroller, an alphanumeric LCD screen, and a two level alarm system. Just press the START/TEST button and the unit is ready to go.
Portable Multi-Gas Detector
BW Technologies Rig Rat III
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The Rig Rat 3 gas monitor is a wireless multi-point system that continuously monitors for toxic gases, combustibles and oxygen hazards. The self-contained, intrinsically safe site controller is equipped with built-in alarms for instant notification. The use of Independent power, wireless digital signal transmission and plug-in options provides total flexibility.
"Docking Station" Portables
BW Technologies MicroDock II
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The MicroDock II is the world's most advanced compact and affordable automatic calibration, testing and data management system for portable gas detection equipment.
Portable Multi-Gas Detector
RKI Instruments Eagle Sample Draw
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The RKI EAGLE. Equipped with features that are not available on most competitive units, the EAGLE is a powerful instrument for standard confined space protection, with detection combinations never before offered in a portable gas monitor.
Portable Multi-Gas Detector
RKI Instruments GX 2003
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The GX-2003, is RKI's smallest personal 5-in-1 gas monitor. Monitor standard confined space gases (LEL combustibles, Oxygen content, Carbon Monoxide, and Hydrogen Sulfide), or measure 100% volume Methane, dynamically display either % LEL, or % volume with the auto-ranging ability.
Portable Multi-Gas Detector
RKI Instruments GX 2001
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The RKI GX-2001 offers the smallest 4-gas monitor in the world. Weighing in at only 6 ounces and about the size of a pager (2.8" H x 2.2" W x 1.1" D), the GX-2001 simultaneously monitors combustibles, oxygen, carbon monoxide, and hydrogen sulfide. The GX-2001 come armed with standard features: vibration alarm, auto calibration, Datalogging and a rechargeable Ni-MH battery pack.
Portable Multi-Gas Detector
RKI Instruments Eagle Diffusion
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RKI's most versatile portable gas detector on the market. This version of the EAGLE maintains the same features as its original sample drawing design, but utilizes a unique diffusion sensor block external to the Eagle for quicker response and recovery. This sensor block is capable of simultaneously monitoring up to 4 gases and may be connected directly to the instrument or to the end of an extender cable, available in 20 foot and 50 foot lengths.
Stand Alone Calibration Station
RKI Instruments SM-2000 Stand-Alone Calibration Station For Use With GX2001 & GX2003 Stand-Alone Calibration Station
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The RKI, SM-2000 single module calibration station for the GX-2003 and GX-2001 Portable Gas Detectors is a stand alone station that can charge, Bump Test, Calibrate, and archive data without the need of a computer to operate.
Portable Multi-Gas Detector
RKI Instruments GX94
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The RKI, GX-94 is a powerful and economical solution for confined space gas monitoring requirements. For an economical price you receive features such as single-button auto calibration of all gases, data logging with a lunch break mode, continuous operation for 12 hours on only 2 size C alkaline batteries with a dual low battery alarm (warning and fully dead).
Portable Multi-Gas Detector
Thermo Scientific Innova
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Multi gas monitor is ideal for pre-testing confined spaces in refineries, wastewater treatment plants, fire departments, utilities and many other applications.
Portable Multi-Gas Detector
Thermo Scientific GT CO2 Series
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Portable gas monitor detects carbon dioxide, hydrocarbons in the LEL/ppm range, oxygen content and carbon monoxide or hydrogen sulfide.
Portable Multi-Gas Detector
Thermo Scientific GT Series
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The GT-Series, Multi gas monitor from Thermo Scientific (GasTech) is ideal for pre-testing confined spaces in refineries, wastewater treatment plants, fire departments, utilities and many other applications.
Portable Multi-Gas Detector
Thermo Scientific Genesis
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A personal, portable multi gas monitor, combines ease of operation with outstanding durability to deliver reliable GasTech quality performance in the most demanding environments.
Portable Multi-Gas Detector
Thermo Scientific Model 580B
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The portability of the GasTech Model 580B allows on-site detection of organic vapors, eliminating errors, time, and cost associated with transporting samples back to the laboratory.
Portable Multi-Gas Detector
Thermo Scientific TVA-1000B (FID or FID/PID) Toxic Vapor Analyzer
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The GasTech TVA-1000B is the only portable, intrinsically safe, survey flame ionization (FID) and photoionization (PID) dual monitor which provides fast and accurate readings of organic and inorganic vapors and meets EPA Method 21 specifications for monitoring fugitive emissions.



