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.
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 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.
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.
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. 
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.
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.
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.
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 an electrochemical 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 4-20 mA output is proportional to the calibrated operating range.
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 SafeSwap 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
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).
Discontinued 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.
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