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Gas Detectors

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Chillgard® 5000 Refrigerant Leak Monitor

Chillgard® 5000 Refrigerant Leak Monitor The Chillgard® 5000 Refrigerant Leak Monitor provides the earliest level of detection of costly refrigerant gas leaks in mechanical equipment rooms. Sampling system with patented photoacoustic infrared (PAIR) technology detects leaks as low as 1 part per million (ppm). Intuitive, touchscreen user interface makes it easy to operate. Predictive maintenance and diagnostics keep you operational.

MSA General Monitors S5000 Gas Monitor with X-Cell gas sensor

General Monitors S5000 Gas Monitor The General Monitors S5000 Gas Monitor is the ultimate gas detector for extreme environments needing to detect oxygen, toxic and combustible gases. It operates over a wide temperature range using a variety of gas sensing technologies. XCell® gas sensors with TruCal® technology extends calibration cycles up to 18 months. Dual sensing capability doubles the sensing power.

MSA Senscient ELDS Open Path Gas Detector

Senscient ELDS™ Open Path Gas Detector The Senscient ELDS laser-based open path gas detector is available for a wide range of toxic and flammable gases. The Senscient ELDS uses 'SimuGas' self-testing to eliminate employees entering hazardous areas for gas checks. Nuisance false alarms are virtually eliminated with its breakthrough Harmonic Fingerprint processing.

MSA ULTIMA X5000 Gas Detector with green status LEDs shining

ULTIMA® X5000 Gas Monitor The ULTIMA® X5000 Gas Monitor  is the future of gas detection for oxygen, toxic and combustible gases. MSA XCell® gas sensors with TruCal® technology offer calibration cycles up to 18 months (local calibration respected). The gas transmitter's advanced, multi-lingual OLED display is easy to read and the unique touch-screen interface makes it simple to navigate.

S4000CH Combustible Gas Detector

S4000CH Combustible Gas Detector The S4000CH Intelligent Sensor is a microprocessor-based transmitter designed for use with General Monitors industry-leading catalytic bead sensors. It features one person calibration and virtually self-calibrates by simply activating a magnetic switch and applying gas. It monitors combustible gases and vapors within the lower explosive limit (LEL) and provides status indication and alarm outputs. Complies with ANSI/ISA 12.13.01-2000 performance requirements for combustible gas detectors.

MSA Ultima Series XE Gas Detector

Ultima® X Series Gas Monitors Designed to provide thorough, continuous monitoring of many hazardous gases, the indoor/outdoor Ultima X Series Gas Monitors offer excellent performance and MSA quality craftsmanship. DuraSource™ Technology offers extended sensor life, while HART provides convenient setup, calibration and diagnostics. HART also allows for existing component install and wiring to be used. A single circuit board increases reliability, while our patented sensor disconnect-underpower feature allows all sensors to be replaced in hazardous areas without area declassification. The units are crafted from either stainless steel or polycarbonate, and the interchangeable smart sensors eliminate the need for reconfiguration. Our scrolling LCD screen display sensor reading and gas type, while the calibration process includes date stamping and the ability to calibrate locally or remotely.

Ultima® XIR Gas Monitor

Ultima® XIR Gas Monitor The microprocessor-based, infrared Ultima XIR gas detector is precisely engineered to continuously monitor for combustible gases and vapors. The unit features DuraSource Technology, which offers improved IR life, and a HART port for easy output access. The explosion-proof stainless steel monitor works indoors or outdoors and features infrared technology that eliminates the need for frequent calibrations. Its operations are based on dual-wavelength, heated-optics technology, which compensates for temperature, humidity and aging effects. The unit uses only one circuit board for increased reliability, and the sensor life isn't reduced by exposure to gas. The LCD screen provides scrolling information, while optional quick-check LEDs provide increased visibility.

MSA IR400 Point Infared Gas Detector

IR400 Point IR Gas Detector The IR400 Infrared (IR) Point Detector is a hydrocarbon gas detector that continuously monitors combustible gases and vapors within the lower explosive limit (LEL) and provides alarm indication. It features an industry-leading response time of ≤ 3 seconds, even with a splash guard installed. All electronics are contained within an explosion-proof housing so that the IR400's detector information can be processed locally. Configurations with analog output, Modbus and HART are also available.

MSA S4000TH Hydrogen Sulphide Gas Detector Unit - front view

S4000TH H2S Gas Detector The S4000TH Intelligent Gas Sensor is a microprocessor-based transmitter designed for use with General Monitors' thin film metal oxide semiconductor (TFMOS) sensors to detect H2S gas. The unit features one person calibration and can virtually self-calibrate by simply activating a magnetic switch and applying gas. It detects hydrogen sulfide in 0-20 ppm, 0-50 ppm or 0-100 parts per million (ppm) levels over a wide temperature range. 

MSA Chillgard VRF Refrigerant Leak Detector Unit - Front View

Chillgard® VRF Refrigerant Leak Detector MSA Chillgard VRF Refrigerant Leak Detector is the first industry detector for Variable Refrigerant Flow Systems (VRF) with integrated BACnet capability. Therefore, it can be directly connected with any Building Management Systems (BMS). MSA applies its proven Photoacoustic infrared sensing technology that provides a stable zero baseline, minimizes cross-sensitivities and offers low cost of ownership through minimum maintenance required.

SB100 Ultrasonic Bump Tester

SB100 Ultrasonic Bump Tester The SB100 is a hand-held battery-operated rechargeable ultrasonic tester designed to bump test General Monitors ultrasonic gas leak detectors. The SB100 is useful for quick tests where physical access to the ultrasonic gas detector can be difficult. The unit can be used to bump test up to 18 meters away from the detector in Class 1, Div 1&2 hazardous areas.

Z-Gard® DS MPO Dual Gas Sensor

Z-Gard® DS MPO Dual Gas Sensor The Z-Gard DS MPO Gas Sensor connects directly to a building automation system for dual gas monitoring solutions. It detects the presence of carbon monoxide and nitrogen dioxide. The Z-Gard DS MPO Sensor communicates with one of several industry standard protocols, providing seamless integration with commercial automation systems.

Z-Gard® S MPO Single Gas Sensor

Z-Gard® S MPO Single Gas Sensor The Z-Gard S MPO Gas Sensor connects directly to a building automation system for single gas monitoring solutions. It detects the presence of either carbon monoxide, nitrogen dioxide or combustible gases in air. The Z-Gard MPO Sensor communicates with one of several industry standard protocols, providing seamless integration with commercial automation systems.

S4100C Combustible Gas Detector

S4100C Combustible Gas Detector The S4100C Intelligent Sensor is a self-contained microprocessor-based transmitter with integral three-digit readout. It is designed to measure and display concentrations of combustible gases in the 0-100% LEL range, but will continue to display concentrations up to 120% LEL. The sensing element may be incorporated in the transmitter housing or remotely mounted at distances up to 620 meters. The S4100C records the number of successful calibrations, computes the sensor output in mV during calibration and stores in non-volatile memory.

IR5500 Open Path Infrared Gas Detector

IR5500 Open Path Infrared Gas Detector The IR5500 is an open path infrared (IR) gas detector that continuously monitors for flammable gas leaks over large open areas. It monitors in both the LEL-m and ppm-m ranges to detect both small and large leaks. The IR5500 offers the benefits of early detection with its high sensitivity to gas concentrations at the ppm levels.  This feature allows it to alarm faster than an LEL-only detector. Digital display and adjustable mounting arms ensure easy alignment. Factory calibrated for low-maintenance operation.

Ultima OPIR-5 Open Path Infrared Detector

Ultima OPIR-5 Open Path Infrared Detector Get continuous monitoring of methane, propane, and other combustible gases with this open path infrared detector. Provides 4-20 mA analog signals, as well as digital display and relay contacts. Digital display and adjustable mounting arms ensure easy alignment. Factory calibrated for low-maintenance operation.

S4100T H2S Gas Detector

S4100T H2S Gas Detector The S4100T Intelligent Sensor is a highly reliable, self-contained, microprocessor-controlled hydrogen sulphide transmitter with integral 3 digit readout. It is designed to measure and display concentrations of H2S in the 0-20 ppm, 0-50 ppm or 0-100 ppm range, but will continue to display concentrations up to 120% FSD. The gas sensor may be incorporated in the transmitter housing or remotely mounted at distances of 600 meters. The sensor employs thin film metal oxide semiconductor (TFMOS) technology as the measuring principle.

Observer-i Ultrasonic Gas Leak Detector

Observer-i Ultrasonic Gas Leak Detector Instantly detect pressurized gas leaks with this high-precision,  omni-direction acoustic detector utilizing Gassonic ultrasonic technology. Works even when traditional methods of gas detection are unsuitable or dependent on ventilation. Features Artificial Neural  Network (ANN) technology that distinguishes between real gas leaks and false  alarm sources without requiring any in-field training. The Observer-i UGLD provides an industry-leading detection range (up to 28 m) reducing the  number of detectors required. Ideal for use in complex, outdoor pipeline systems.

PrimaX® P Gas Transmitter

PrimaX® P Gas Transmitter Designed to detect gases indoors or outdoors, our PrimaX P Gas Transmitter measures oxygen and toxic and combustible gases. The flameproof transmitter is housed in a powder-coated aluminum enclosure that will protect it in extremely dangerous conditions. The unit also features a large, easy-to-read LCD screen and three LED status indicators for up-to-the-second reporting. The transmitter attaches to an integral mounting plate for easy installation, and it can be easily calibrated using the built-in keypad. It uses a 4-20 mA output signal to transmit its data, and it can also be configured to use HART digital communication. With easily replaced plug-in sensors, the PrimaX P transmitter is suitable for laboratories, chemical plants, power plants and several other industry settings.

PrimaX® IR Gas Transmitter

PrimaX® IR Gas Transmitter Every feature of the PrimaX IR Gas Transmitter is designed with reliability in mind to withstand the most challenging environmental conditions through out the product’s life. MSA’s PrimaX IR Gas Transmitter offers LEL (Lower Explosive Limit) combustible gas detection through a patented PrimaX Gas Transmitter IR dual source design. A redundant IR source provides reliability and uninterrupted monitoring should a source failure occur. Furthermore, the possibility of obscurations due to rain, fog, dirt, dust, and other environmental conditions is minimized due to dual source design.

TS4000H Toxic Gas Detector

TS4000H Toxic Gas Detector The TS4000H Intelligent Toxic Gas Detector continuously monitors a variety of toxic gases in the ppm range or oxygen deficiency, delivering highly accurate detection and protection. The unit features one person calibration and virtually self-calibrates by simply activating a magnetic switch and applying gas. It provides status indication and alarm outputs. Configurations with relays, Modbus, and HART are available to meet many needs.

PrimaX® I Gas Transmitter

PrimaX® I Gas Transmitter Indoors or outdoors, our PrimaX I Gas Transmitter provides dependable, accurate gas detection. The transmitter detects toxic gases and oxygen and is housed in an antistatic, reinforced nylon enclosure. It also has a large, easy-to-read LCD screen and attaches to an integral mounting plate for easy installation, while the built-in keypad makes for quick, simple calibration. To transmit data, the unit uses a 4-20 mA output signal and can also be configured to use HART digital communication. With easily replaced plug-in sensors, the PrimaX I transmitter is suitable for laboratories, chemical plants, power plants and several other industry settings.

TS4000H - H2S Electrochemical Gas Detector

TS4000H - H2S Electrochemical Gas Detector The TS4000H Intelligent Toxic Gas Detector continuously monitors hydrogen sulfide (H2S) in several ppm ranges, delivering highly accurate detection and protection. The unit features one person calibration and can virtually self-calibrate by simply activating a magnetic switch and applying gas. It provides status indication and alarm outputs. Configurations with relays, Modbus, and HART are available to meet many needs.

IR4000S Single-Point Gas Monitor

IR4000S Single-Point Gas Monitor The IR4000S Single-Point Monitor is a display and user interface for the IR400 point IR gas detector. The monitor allows local calibration and displays gas concentration. Relays are optional. The relays provide output for Alarm, Warn, and Fault conditions.

IR4000M Multi-Point Gas Monitor

IR4000M Multi-Point Gas Monitor The IR4000M Multi-Point Gas Monitor can be used as an integrated combustible gas detection system, with capacity to connect eight point IR or open path gas detectors and read their status with one command. The highest current % LEL among all connected detectors is shown continuously during normal operation. An extensive set of menus are easily navigated using a magnetic switch to request the status and configuration data stored by the IR4000M.

Chillgard® RT Refrigerant Monitor

Chillgard® RT Refrigerant Monitor Capable of detecting refrigerant gas down to 1ppm, the Chillgard RT Refrigerant Monitor is purpose-built to monitor up to eight remote areas—and is completely configurable to detect either a specific refrigerant or group of refrigerant gases.

Toxgard® II Gas Monitor

Toxgard® II Gas Monitor Simply connect the convenient ToxGard II Gas Monitor to a power source and a remote sensor, and it's ready to detect toxic gases, combustible gases and oxygen deficiency. The indoor/outdoor unit is housed in a rugged NEMA 4X enclosure and features a large LED screen, three levels of alarm and a failsafe fault relay output.

Chemgard® Photoacoustic Infrared Gas Monitor Series

Chemgard® Photoacoustic Infrared Gas Monitor Series The stable, durable Chemgard Photoacoustic Infrared Gas Monitor is purpose-built and detects minute amounts of a wide variety of gases. Three different enclosure styles ensure there is a configuration for wildly different situations. The instrument typically draws the gas sample via an internal pump, which allows the unit to be mounted in a convenient location if the area to be monitored is inaccessible. The unit can be expanded to monitor up to 8 locations, while an easy-to-read display shows gas concentrations and 3 levels of alarms.

MultiGard™ 5000 Multipoint Gas Sampling System

MultiGard™ 5000 Multipoint Gas Sampling System The economical, efficient MultiGard 5000 Gas Sampling System uses auto-standardization and flexible sample point order to analyze gas from up to 32 locations. Maintenance and calibration are made easy because all the work is performed at a single location, while also ensuring personnel don't have to enter the monitored area. The unit directly connects to Modbus TCP/BACnet IP networks, which allows communication to other equipment or controllers. The system allows secure viewing at one's personal computer. The screen provides easy access to scroll-down menus and visual indicators of sensor condition.

Chillgard® LE Photoacoustic Infrared Refrigerant Monitor

Chillgard® LE Photoacoustic Infrared Refrigerant Monitor The Chillgard LE Photoacoustic Infrared Refrigerant Monitor is specifically designed for reliable detection of five of the most common refrigerants from up to four remote locations—with a minimum detection level of 20ppm. Specifically designed to operate for months with virtually no zero drift.

Chillgard® LS Photoacoustic Infrared Refrigerant Monitor

Chillgard® LS Photoacoustic Infrared Refrigerant Monitor The Chillgard LS Photoacoustic Infrared Refrigerant Monitor is the reliable choice for detecting the five most common refrigerants.

IR700 Point IR Carbon Dioxide Gas Detector

IR700 Point IR Carbon Dioxide Gas Detector The IR700 Infrared (IR) Point Detector is a microprocessor-based carbon dioxide gas detector that continuously monitors for CO2 in ppm levels. All electronics are contained within an explosion-proof housing so that the IR700's detector information can be processed locally. The IR700 operates with a 4-20 mA signal, which is proportional to 0 to 100% full scale. Configurations with analog output, Modbus and HART are available. Modbus and HART data can be used for predictive maintenance.

IR4000S-CO2 Single Point Gas Monitor

IR4000S-CO2 Single Point Gas Monitor The IR4000S CO2 Single-Point Monitor is a display and user interface for the IR700 carbon dioxide gas detector. The monitor allows local calibration and displays gas concentration. Relays are optional. The relays provide output for Alarm, Warn, and Fault conditions. 

Z-Gard® S Sensor

Z-Gard® S Sensor The Z-Gard S Sensor is designed to detect the presence of carbon monoxide, nitrogen dioxide and combustible gases in air. These sensors employ solid state, electrochemical or catalytic sensors which generate a representative output signal proportional to the calibrated operating range. All Z-Gard S Sensors are available with 2 output versions, a 4-20mA analog output, or an addressable RS-485 digital signal. Z Gard Sensors with RS-485 digital output are specifically designed to operate as a system with any Z-Gard CXII or C 485 Controller. Z-Gard Sensors with 4-20mA can be installed as stand-alone sensors typically integrated with the Z-Gard C Controller, or common commercial equipment including PLC, DCS, or building automation systems.

Z-Gard® COmbo Gas Monitor

Z-Gard® COmbo Gas Monitor A cost-efficient monitor for underground garages and ventilation control, the Z-Gard COmbo Gas Monitor uses a solid-state sensor to detect carbon monoxide. The unit features local audio/visual alarm status indicators and it can be configured to interface with air-handling equipment to control air quality within a building. Additional remote sensors can be attached to the unit via the RS-485 network port, while a 4-20mA output is proportional to the calibrated operating range.

Z-Gard® DS Sensor

Z-Gard® DS Sensor The Z-Gard DS Sensor is designed to detect the presence of carbon monoxide and nitrogen dioxide gases in parking garages, vehicle storage areas or wherever else these two toxic gases could be found. These sensors employ electrochemical sensors which generate a representative output signal proportional to the calibrated operating range. All Z-Gard DS Sensors are available with 2 output versions, a 4-20mA analog output, or an addressable RS-485 digital signal. Z-Gard Sensors with RS-485 digital output are specifically designed to operate as a system with any Z-Gard CXII or C 485 Controller. Z-Gard Sensors with 4-20mA can be installed as stand-alone sensors typically integrated with the Z-Gard C Controller, or common commercial equipment including PLC, DCS, or building automation systems.

Ultima® X Series Gas Monitors with X3® Technology

Ultima® X Series Gas Monitors with X3® Technology The Ultima X Series Gas Monitors with X3 Technology bring the power of multi-sensing, signal boost and ModBus output to the Ultima X line of MSA gas monitors. The units are crafted from either stainless steel or NEMA 4X-rated plastic, and our patented sensor disconnect-underpower feature allows all sensors to be replaced in hazardous areas without area declassification. The interchangeable smart sensors eliminate the need for reconfiguration, while the use of one circuit board increases reliability. Each sensor can be placed up to 3,000 feet from the monitor, while the scrolling LCD screen displays sensor reading and gas type.   Note: This is a custom product. Please consult your local sales manager or contact Customer Service for configuration details

Ultima® XL/XT Series Gas Monitors

Ultima® XL/XT Series Gas Monitors Engineered to provide cost-efficient gas detection, the Ultima XL/XT Series Gas Monitors are simply an outstanding choice. The units boast a hand-held HART port running over 4-20mA output provides convenient setup, calibration and diagnostics. The interchangeable smart sensors eliminate the need for reconfiguration, while local calibration employs LEDS and push-buttons. Indoors or outdoors, some of these explosion-proof models feature infrared technology that eliminates the need for frequent calibrations. Some units operations are based on dual-wavelength, heated-optics technology, which compensates for temperature, humidity and aging effects. The monitors use only one circuit board for increased reliability, and they're easy to install with two-piece field-wiring connectors.

TRIGARD® Gas Monitoring System

TRIGARD® Gas Monitoring System Designed to meet a variety of demanding applications, from wastewater facilities, to light industry and commercial applications, the TRIGARD Gas Monitoring System features MSA's precision craftsmanship and detects chlorine, sulfur dioxide and other toxic and combustible gases. The adjustable-range unit also detects oxygen deficiency and enrichment. AC or DC powered, the system features a highly visible LCD screen and simple push-button calibration. Boasting sturdy NEMA 4X design and a single board, the unit offers multiple sensor mounting options. Our patented sensor disconnect-underpower feature allows all sensors to be replaced in hazardous areas without area declassification, while interchangeable smart sensors are pre-calibrated for installation right out of the box.

TriGas Monitoring System

TriGas Monitoring System The TriGas Monitoring System consists of up to three sensors with Ultima® X3 Technology’s digital communications with on-board LEDs and relays to provide local alarms. This TriGas system offers  interchangeable smart sensors, internal DC-powered sample-draw pump and a hydrophobic end-of-line filter that makes it  ideal for areas of wastewater treatment plants that are subject to flooding (such as wet wells). The TriGas Monitoring System typically monitors for oxygen, hydrogen sulfide and combustible gases (methane or petroleum vapors) and is specifically designed for optimum performance within high-moisture environments. This system can also be supplied with the proper options to meet the NFPA 820 section 1.8 standards followed by the wastewater industry.  

Chillgard® NH3 Gas Monitor

Chillgard® NH3 Gas Monitor The Chillgard NH3 Gas Monitor is the economical choice for fast, reliable detection of parts-per-million (ppm) levels of ammonia, down to -40°C. Capable of measuring a 10 ppm leak, with full-range scale of 0-1000 ppm.

Chillgard® LC Control Module

Chillgard® LC Control Module The Chillgard LC Control is specifically designed to accept input from up to eight MSA Chillgard LS Refrigerant Monitor sensor modules. Reliable microprocessor-based control for low maintenance and long life.

Surveyor Ultrasonic Gas Leak Detector

Surveyor Ultrasonic Gas Leak Detector The Surveyor detects gas leaks by sensing the airborne ultrasound emitted from leaking gas at high pressure. Ultrasonic gas detection is based on robust and proven Gassonic technology and designed for long and failsafe operation in extreme environmental conditions. Because the Surveyor responds to the source of a gas release rather than the dispersed gas, it is unaffected by changing wind directions, gas dilution, and the direction of the gas leak.

S800 Methane Monitor for Underground Mining

S800 Methane Monitor for Underground Mining The S800 is designed for underground mine methane monitoring. The monitor provides adjustment-free, single person calibration and is available through our exclusive mining distributor, United Central Industrial Supply. Features of the S800 include a large (approximately two-inch) digital display for constant indication of gas concentrations in % gas by volume or % LEL, fault codes and calibration cues. The S800 provides relay connections for Warn and Alarm conditions. MSHA approved.


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