Fixed Gas & Flame Detection

Series 47K

Designed to detect flammable gas or vapor, the stainless steel Series 47K gas sensors offer a cost-effective way to detect hazards in the air. The sensors come in poison resistant and high-temperature versions, and have three- or five-wire connection.
view details

MC600 Multi-Channel Controller

The MC600 is a microprocessor-based multi-channel controller that provides six channels of continuous gas detection. It can be configured as either a local gas detection system, or it can be networked to provide a large plant-wide distributed safety system. It is compatible with our hydrocarbon sensors, H2S sensors, as well as our S4000CH, S4100C, S4000TH, S4100T, IR400, IR5500, IR700, TS4000H, Observer, and Surveyor gas detectors.
view details

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.
view details

GasGard® XL Controller

Monitor up to eight remote gas sensors with the highly accurate wall-mounted GasGard XL Controller. The sensor's large, multi-language LCD display provides real-time readings, offers full-system diagnosis and shows intuitive icons. Housed in durable, fire-retardant ABS plastic, the controller is suitable for a variety of chemical, industrial and waste water environments. The sensor also features a buzzer that sounds up to 85 db.
view details

TA102A Single Channel Combustible Trip Amplifier Module

The TA102A is a single-channel Combustible Gas Trip Amplifier Module designed for use with one General Monitors intelligent transmitter to monitor combustible gases and vapors within the lower explosive limit (LEL) and provide status indication and alarm outputs. Microprocessor-based electronics allow all options to be user selectable through a front panel interface (mode / select switch and digital display). A digital display indicates fault codes and set up options. Other features include: LED indications of status, as well as both open collector and relay outputs for fault, low alarm and high alarm.
view details

4802A Zero Two Series Control Module for Combustible Applications

The 4802A is a single channel Combustible Gas Control Module that has been designed for use with our proven catalytic bead sensors. It is designed to monitor combustible gases and vapors within the lower explosive limit (LEL) and provide status indication and alarm outputs. Microprocessor-based electronics allow all options to be user selectable through the front panel interface. A digital display indicates gas concentration, fault codes, calibration cues and setup options. Other features: LED indications of status, as well as open collector and relay outputs.
view details

610A Four Channel Combustible Gas Monitor

The 610A is a system for continuously monitoring combustible gas (hydrocarbon) concentrations in four locations. The system consists of four General Monitors remote catalytic bead sensing assemblies and a solid-state controller. The controller features four independent channels, each having its own circuitry. The 610A features a digital display of gas concentrations in % LEL (0-99% lower explosive limit) for each channel.
view details

Catalytic Bead Sensors

The General Monitors catalytic bead gas sensors are well known for their sensitivity, reliability and longevity and make them the first choice for most users of the catalytic oxidation gas detection principle. Every component is manufactured in-house to ensure optimum performance. Careful matching of the active and reference elements ("beads") result in a sensor that has negligible zero drift with respect to changes in humidity, pressure, and temperature.
view details

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.
view details

580A Dual-Channel Combustible Gas Monitor

The 580A is a compact, highly-versatile system for continuously monitoring combustible gas (hydrocarbon) concentrations in two locations. The system consists of two remote catalytic sensing assemblies and a solid-state controller. The controller automatically displays the higher reading channel on a digital display, scaled from 0-100% LEL (lower explosive limit). Manual override switching permits readout of the low channel at any time.
view details

Catalytic Bead Accessories

General Monitors offers a wide variety of accessories for our catalytic bead gas sensors.
view details

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.
view details

IR Gas Detector Accessories

General Monitors offers a wide variety of accessories for infrared gas leak detection.
view details

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.
view details

DC110 Eight Channel Combustible Readout / Relay Module

The DC110 is an eight-channel Readout / Relay Module designed to be used with up to eight of our remotely located Combustible Intelligent Sensors. The front panel contains a digital display that indicates 0-99% LEL (lower explosive limit) of the combustible gas being monitored by the Intelligent Sensors.
view details

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.
view details

RGC - Remote Gas Calibrator for Catalytic Bead Sensors

The Remote Gas Calibrator (RGC) allows calibration gas to be applied to a remotely located catalytic bead sensor from an easily accessible location. The RGC is used for blocking ambient air and redirecting methane to the catalytic sensor for calibration or testing sensor accuracy. The RGC tests or calibrates the General Monitors catalytic sensor with 50% LEL methane. The unit is capable of calibrating gas at wind velocities up to 50 mph. The RGC is used manually with a pressure regulator (P/N 80146-1) and is suitable for calibrating with any light hydrocarbon.
view details

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.
view details

RGC-IR - Remote Gas Calibrator for Point IR Detectors

The remote gas calibrator, RGC-IR, is designed to be permanently installed on a combustible IR gas detector. The RGC-IR provides protection from outside elements and allows the user to apply calibration gas (@ 50 psi) to the detector from a remote source.
view details

RGC-HT - Remote Gas Calibrator for High Temperatures

To verify the proper operation of a catalytic combustible gas sensor, it is necessary to periodically apply a gas of known concentration to the sensor. This is usually done manually at the site with gas supplied from a small lecture bottle. As the sensor reacts to the calibration gas, adjustments are made to the monitoring system to bring its calibration into agreement with the known concentration of the calibration gas. At times, sensors are mounted in inaccessible locations, requiring expensive catwalks or scaffolding to reach them. The High Temp Remote Gas Calibrator (RGC-HT) allows the calibration gas to be applied to the catalytic bead sensor from easily accessible locations. The RGC-HT is used for blocking ambient air and redirecting methane or other light hydrocarbon gases to the catalytic bead sensor for calibration or testing sensor accuracy in various environments. The RGC-HT tests or calibrates the General Monitors Catalytic Bead sensor with 50% LEL methane or other light hydrocarbon gas. The unit is capable of calibrating and detecting gases in various wind conditions (up to 45 mph) and temperatures (up to 200°C when used with high temperature sensor).
view details

ARGC - Automatic Remote Gas Calibrator

To verify the proper operation of a catalytic combustible gas sensor, it is necessary to periodically apply a gas of known concentration to the sensor. This is usually done manually at the site with gas supplied from a small lecture bottle. As the sensor reacts to the calibration gas, adjustments are made to the monitoring system to bring its calibration into agreement with the known concentration of gas. At times, sensors are mounted in inaccessible locations, requiring expensive catwalks or scaffolding to reach them. The Automatic Remote Gas Calibrator (ARGC) allows the calibration gas to be applied to the catalytic bead sensor from easily accessible locations. The ARGC is used for blocking ambient air and redirecting methane to the catalytic sensor for calibration or testing sensor accuracy. The ARGC tests or calibrates the General Monitors catalytic sensor with 50% LEL methane. The unit is capable of calibrating gas at wind velocities up to 50 mph. Note: the RGC (P/N 80153-1), used manually with a pressure regulator (P/N 80147-1), is suitable for calibrating with any light hydrocarbon.
view details

1701 Portable Test and Calibration Unit

The 1701 is a portable test and calibration unit used to verify the operation and calibrate certain ultrasonic gas leak detectors. Although the detectors do not require regular maintenance, the 1701 can be used to satisfy the requirements for regular plant maintenance. Further, the 1701 requires no electrical connection to the gas leak detector but is simply placed over the sensor head of the gas leak detector.
view details

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.
view details

Mounting Hardware

General Monitors offers a complete line of mounting hardware to facilitate installing any of our gas and flame detectors in commercial or industrial facilities.
view details

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.
view details

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.
view details

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.
view details

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.
view details

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
view details

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.
view details

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.
view details

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.
view details
Product Comparison Queue (0) Compare Products