Professional models such as New Cosmos XP-3300II, XP-3380II, specialty gas detectors, and Heath HYBRID Service / CGI are selected based on gas type and application for leak survey, ambient checking, bar-hole, and pumped sampling. Portable leak survey, personal continuous alarm, and process analysis represent distinct use cases.
Blackline Safety G7c along with TWIG One, TWIG Neo, and associated Ex options support lone or remote worker SOS alerts, man-down/motionless notifications, and location transmission to monitoring teams. Gas measurement is not standard on all models; measurement and communication options must be evaluated separately.
SENKO iGAS CO₂, SGT, MGT, and MGT-P, as well as T40 II, Ventis, MX6, Radius, and New Cosmos options are evaluated based on target gas and work location. Single-gas, multi-gas, pumped personal sampling, and area monitoring are not equivalent functions; alarm configuration should be selected to match the site.
The Shinyei OMX-SRM, OMX-ADM, and OMX-TDM series help compare odour indications or TVOC trends in production sites, waste, and indoor environments. Instrument outputs do not replace odour concentration (ouE/m³) determined via EN 13725 dynamic olfactometry.
New Cosmos KD-12, PD-12, and KS-7 series, CETCI cGAS / LPT, Det-Tronics FlexSonic, and Sensidyne fixed gas monitoring solutions are selected to match facility gas hazards, sensor technology, and control systems. ATEX/IECEx, 4–20 mA, or digital communication compliance must be confirmed on a per-model and configuration basis.
Heath RMLD-CS, TGES LaserMethane Smart, PERGAM LM100M, and LMA are designed for remote field screening; PERGAM LMS is dedicated to continuous automated monitoring projects. LMA is specifically engineered for ammonia (NH₃); not all laser instruments detect the same gas or over the same distance.
Heath DP-IR+, Discover AMLD, and PERGAM SELMA systems are used for vehicle-based pipeline screening. Heath HYBRID CGI supports detailed on-site investigation of suspected points, whilst NOVEL MDTVA supports evaluation and reporting of compatible data in a PC environment. Methane/ethane discrimination is provided only on models that support it.
CS Clean Solutions CLEANSORB FABLINE, FABLINE FX, PRIMELINE, LABLINE, and Stand-Alone families, alongside CLEAN-PROTECT and CLEANVENT solutions, are evaluated for dry-bed chemisorption and emergency abatement of suitable exhaust gases in semiconductor, photovoltaic, pharmaceutical, and chemical processes. These are process gas abatement systems, not gas detection instruments.
Analytical Industries GPR series offer various ppm/percentage oxygen measuring ranges for nitrogen generators, gloveboxes, and process gases. New Cosmos XP-3380II is evaluated for portable safety applications. Ppm process analysers and ambient oxygen deficiency alarm detectors should not be selected interchangeably.
New Cosmos SDM-72 measures iron wear particles in grease samples in %Wt, whilst SDM-73 measures particles in oil samples in ppm (Wt). Supporting predictive maintenance data in robotic reducers, bearings, and rotating machinery, it does not replace vibration analysis.
New Cosmos XP-702III-F and XP-704III are designed for service-type refrigerant leak surveys; CETCI cGAS and LPT are designed for fixed gas monitoring in cold storage facilities with appropriate gas/sensor selection. Ammonia (R717) and HFC/HFO refrigerants require different detection approaches.
CETCI FCS, New Cosmos V3/VAS, ePACT, NV-120Mx, and project-specific PLC panels are selected based on detector quantity, 4–20 mA or digital communication, and alarm scenarios. Panel variant and power supply compatibility must be verified per project for models such as KD-12/PD-12.
Legacy model codes, documentation, and any current alternatives for discontinued instruments will be listed here in due course. Current manufacturing, service, and spare parts availability for each model must be verified separately. No new instrument or stock/supply guarantee is listed at this time.
Gas detector selection: Target gas, measuring range, and application
Methane/LEL, CO, H₂S, NH₃, CO₂, O₂, and specialty process gases cannot be measured with the same sensor. Evaluate portable gas leak surveys, clip-on personal alarms, fixed monitoring, and ppm process gas analysis separately to identify the appropriate product family.
Gas distribution companies, organised industrial zones (OIZ), and infrastructure maintenance teams
Remote laser screening, vehicle-mounted mobile network surveys, bar-hole inspections, pumped measurement, and digital logging address distinct field tasks. Selection must be made according to workflow and reporting requirements across city gas distribution utilities and OIZ infrastructure teams.
Fixed alarms, control panels, and ventilation in industrial facilities
Fixed gas detectors, alarm indicators, relay/PLC panels, and ventilation scenarios are engineered together. Sensor output (4–20 mA or suitable digital interface), power supply, and hazardous area classification compliance must be verified for the chosen model.
Gas abatement and treatment in semiconductor and chemical processes
The CS Clean Solutions CLEANSORB family, CLEAN-PROTECT, and CLEANVENT systems are designed for the chemisorption/abatement of hazardous process gases under suitable conditions. These products are not gas detectors; they form part of process safety and exhaust treatment systems.
Technical guide
Frequently asked questions.
What is the difference between a portable gas detector and a fixed gas detection system?
Portable detectors serve the spot measurement, leak survey, and personal safety requirements of mobile field personnel. Fixed detectors perform continuous monitoring at designated points; they can trigger alarms, relays, and ventilation sequences via appropriate control panels.
Are clip-on personal gas detectors and lone worker safety devices the same product?
No. Personal gas detectors monitor target gases on the operative to provide alarms. Lone worker systems focus on SOS, man-down/motionless detection, location, and communication. Certain models may combine both functions; exact features depend on the specific model.
How do you choose between a laser methane detector and a vehicle-mounted methane survey system?
Laser methane detectors are used to screen specific points remotely under suitable operating conditions; vehicle-mounted mobile systems are used for driving surveys along extensive distribution networks. Project selection must evaluate measurement distance, target gas, vehicle speed, route logging, and the requirement for methane/ethane discrimination.
Are CS Clean Solutions process gas abatement systems gas detectors?
No. CLEANSORB, CLEAN-PROTECT, and CLEANVENT systems are designed for treating specific hazardous process or exhaust gases using appropriate chemical methods. Sensors measuring gas concentrations and safety alarms are distinct components.
What is the difference between an oxygen detector and a ppm oxygen analyser?
Ambient oxygen detectors monitor oxygen depletion or enrichment for personnel safety, typically on a percentage volume basis. Ppm oxygen analysers are used to measure trace residual oxygen in nitrogen generators, gloveboxes, or process gases.
Which systems are evaluated for cold stores and ammonia refrigeration facilities?
Fixed gas monitoring with sensors suited to ammonia (NH₃) and the refrigerant type, ambient temperature conditions, alarm panels, pre-entry warning indicators, and ventilation integration are evaluated together. CETCI cGAS/LPT and New Cosmos portable options address different tasks.
What must be considered when selecting ATEX, CE marking, and sensor technology?
Gas type, measuring range, ambient hazardous area classification, operating temperature, and existing plant signal interfaces are key. The ATEX/IECEx or CE marking status of one model does not automatically apply to its variants; compliance and current certification must be verified per configuration.
Where can I find discontinued detectors and their current replacement models?
The Product Archive page has been prepared to compile information on discontinued models in due course. Compatibility of legacy instruments with replacement models, spare parts, and service availability must be independently verified against manufacturer documentation and existing system connections.
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Natural Gas Leak Survey Service
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