Fixed Gas Detectors
Our fixed gas detectors provide continuous protection. With over 20 years of experience in gas detection, Rockall Safety has become a trusted partner for businesses across the UK, delivering the best fixed gas detection systems for your application.
Our portfolio includes fixed gas detectors, which provide continuous, reliable detection of toxic, flammable, and oxygen-deficient atmospheres. We also supply flame detectors, designed to detect fires quickly and accurately, even in challenging environments. We also provide fully integrated control panels that allow for seamless monitoring, alarm management, and system control across your site.
Our team of engineers are located across the UK and are highly trained to install, commission, and service fixed gas detectors to the highest standards. Whether you operate in oil and gas, chemical processing, wastewater management, or construction, our engineers ensure your fixed detection system is correctly specified, installed, and fully functional.
Beyond installation, we provide ongoing servicing and maintenance to ensure your detectors remain accurate and compliant with safety regulations including the Health and Safety in the Workplace Act 1974.
Rockall Safety works with industry leading brands such as Teledyne, Crowcon, Honeywell, and MSA to bring you the best fixed gas detectors on the market. From sensors that detect flammable gases and oxygen levels to those monitoring toxic gases, our solutions are designed to provide reliable, real-time alerts.
What sets our fixed gas detection team apart is not just technical expertise, but approachability. Known throughout the industry for their professionalism and knowledge, they are here to answer any questions you may have, no matter how simple or complex.
If you have any questions regarding Fixed Gas Detectors, please contact us or call 02920 759 683.
Fixed Gas Detectors
Our fixed gas detectors provide continuous protection. With over 20 years of experience in gas detection, Rockall Safety has become a trusted partner for businesses across the UK, delivering the best fixed gas detection systems for your application.
Our portfolio includes fixed gas detectors, which provide continuous, reliable detection of toxic, flammable, and oxygen-deficient atmospheres. We also supply flame detectors, designed to detect fires quickly and accurately, even in challenging environments. We also provide fully integrated control panels that allow for seamless monitoring, alarm management, and system control across your site.
Our team of engineers are located across the UK and are highly trained to install, commission, and service fixed gas detectors to the highest standards. Whether you operate in oil and gas, chemical processing, wastewater management, or construction, our engineers ensure your fixed detection system is correctly specified, installed, and fully functional.
Beyond installation, we provide ongoing servicing and maintenance to ensure your detectors remain accurate and compliant with safety regulations including the Health and Safety in the Workplace Act 1974.
Rockall Safety works with industry leading brands such as Teledyne, Crowcon, Honeywell, and MSA to bring you the best fixed gas detectors on the market. From sensors that detect flammable gases and oxygen levels to those monitoring toxic gases, our solutions are designed to provide reliable, real-time alerts.
What sets our fixed gas detection team apart is not just technical expertise, but approachability. Known throughout the industry for their professionalism and knowledge, they are here to answer any questions you may have, no matter how simple or complex.
If you have any questions regarding Fixed Gas Detectors, please contact us or call 02920 759 683.
SKU: VortexFP4
Crowcon Vortex Fixed Gas Control Panel
- Gas Detection Class Fixed
- ATEX Non ATEX
- Display 441 x 128mm (cut-out 366 x 84.5mm)
- Channels 12 channels
- Power Consumption 110Vac or 240Vac 3.2A max 150W PSU 20 - 30Vdc
- Brand Crowcon
- Part Numbers Vortex with 8x Input Channels & 2x Relay Modules, Vortex with 12x Input Channels & 2x Relay Modules, Vortex with 4x Input Channels & 3x Relay Modules, Vortex with 8x Input Channels & 3x Relay Modules, Vortex with 4x Input Channels & No Relay Modules, Vortex with 12x Input Channels & 3x Relay Modules, Vortex with 8x Input Channels & No Relay Modules, Vortex with 4x Input Channels & 4x Relay Modules, Vortex with 12x Input Channels & No Relay Modules, Vortex with 8x Input Channels & 4x Relay Modules, Vortex with 4x Input Channels & 1x Relay Modules, Vortex with 8x Input Channels & 1x Relay Modules, Vortex with 12x Input Channels & 1x Relay Modules, Vortex with 4x Input Channels & 2x Relay Modules
View productSKU: 4209465
Dräger Flame Detector 3000
- Gas Detection Class Fixed
- ATEX ATEX
- Temperature 60 to +85 °C (76 to +185 °F)
- Brand Dräger
View productSKU: DRA-FLAME-5000
Dräger Flame Detector 5000
- Gas Detection Class Fixed
- ATEX ATEX
- Temperature 60 to +85 °C (76 to +185 °F)
- Brand Dräger
View productSKU: DRA-REGARD-3000
Dräger REGARD® 3000 Control Panel
- Gas Detection Class Fixed
- ATEX Non ATEX
- Temperature -20 ... +55 °C
- Brand Dräger
View productSKU: DRA-REGARD-3900
Dräger REGARD® 3900 Control Panel
- Gas Detection Class Fixed
- ATEX Non ATEX
- Brand Dräger
View productSKU: H-D03-0001-000
Honeywell RAEGuard 2 Fixed PID Gas Detector
- Gas Detection Class Fixed
- ATEX ATEX
- Temperature -20ºC to +55ºC (-4ºF to +131ºF)
- Power Consumption <5 W
- Output 4-20 mA Three-level programmable alarm relays (30 VDC, 2A) RS-485 (Supports Modbus)
- Brand Honeywell
- Part Numbers H-D03-0015-000 Kit, RAEGuard 2 PID, UL, 0.01 – 100 ppm isobutylene equivalent. Diffusion Model., H-D03-0009-000 Kit, RAEGuard 2 PID, UL, 0.01 – 100 ppm isobutylene equivalent., H-D03-0002-000 Kit, RAEGuard 2 PID, ATEX/IECEx, 0.1 – 1000 ppm isobutylene equivalent. Diffusion model., H-D03-0005-000 Kit, RAEGuard 2 PID, ATEX/IECEx, 0.1 – 1000 ppm isobutylene equivalent., H-D03-0016-000 Kit, RAEGuard 2 PID, UL, 0.1 – 1000 ppm isobutylene equivalent. Diffusion Model., H-D03-0010-000 Kit, RAEGuard 2 PID, UL, 0.1 – 1000 ppm isobutylene equivalent., H-D03-0001-000 Kit, RAEGuard 2 PID, ATEX/IECEx, 0.01 – 100 ppm isobutylene equivalent. Diffusion model., H-D03-0004-000 Kit, RAEGuard 2 PID, ATEX/IECEx, 0.01 – 100 ppm isobutylene equivalent.
View productSKU: 2108N4001
Honeywell Searchpoint Optima Plus Fixed Gas Detector
- Gas Detection Class Fixed
- ATEX ATEX
- Temperature -40°C to +65°C temperature range
- Output Optional Multidrop Modbus RS485 (via DX100(M)), Optional HART® over 4-20mA output (HART® version 7)
- Power Consumption 18-32Vdc (24Vdc nom), < 4.5W max
- Gas Type Hydrocarbon gases & vapours, Combustible Gases
- Brand Honeywell
- Part Numbers 2108N4000N Optima Plus Gas Detector, hydrocarbon version, 4 to 20mA output, ATEX/IECEx, M25 thread spigot, electro polished 316SS,., 2108N5001H Optima Plus Gas Detector, ethylene version for sampling systems, HART® over 4 to 20mA output, ATEX/IECEx, M25 thread spigot, electro polished 316SS., 2108N4000H Optima Plus Gas Detector, hydrocarbon version, HART® over 4 to 20mA output, ATEX/IECEx, M25 thread spigot, electro polished 316SS., 2108N4001N Optima Plus Gas Detector, ethylene version, 4 to 20mA output, ATEX/IECEx, M25 thread spigot, electro polished 316SS., 2108N4001H Optima Plus Gas Detector, ethylene version, HART® over 4 to 20mA output, ATEX/IECEx, M25 thread spigot, electro polished 316SS., 2108N4010N Optima Plus Gas Detector, hydrocarbon version, 4 to 20mA output, ATEX/IECEx, M25 thread spigot, electro polished 316SS., 2108N4010H Optima Plus Gas Detector, hydrocarbon version, HART® over 4 to 20mA output, ATEX/IECEx, M25 thread spigot, electro polished 316SS., 2108N4011N Optima Plus Gas Detector, ethylene version, 4 to 20mA output, ATEX/IECEx, M25 thread spigot, electro polished 316SS., 2108N4011H Optima Plus Gas Detector, ethylene version, HART® over 4 to 20mA output, ATEX/IECEx, M25 thread spigot, electro polished 316SS., 2108N5000N Optima Plus Gas Detector, hydrocarbon version for sampling systems, 4 to 20mA output, ATEX/IECEx, M25 thread spigot, electro polished 316SS., 2108N5000H Optima Plus Gas Detector, hydrocarbon version for sampling systems, HART® over 4 to 20mA output, ATEX/IECEx, M25 thread spigot, electro polished 316SS., 2108N5001N Optima Plus Gas Detector, ethylene version for sampling systems, 4 to 20mA output, ATEX/IECEx, M25 thread spigot, electro polished 316SS.
View productSKU: S3KUS3
Honeywell Series 3000 MkIII Fixed Gas Detector
- Gas Detection Class Fixed
- ATEX ATEX
- Gas Type Hydrogen Fluoride - HF, Hydrogen Sulfide - H2S, Nitrogen Dioxide - NO2, Nitric Oxide - NO, Ethylene oxide - ETO, Ammonia - NH3, Oxygen - O2, Carbon Monoxide - CO, Ozone - O3, Chlorine - Cl2, Phosphine - PH3, Chlorine Dioxide - ClO2, Sulfur Dioxide - SO2, Hydrogen - H, Hydrogen Chloride - HCl, Hydrogen Cyanide
- Power Consumption 10 to 30 Vdc and 17 to 32 Vdc
- Brand Honeywell
- Part Numbers S3KAL3 ATEX/IECEx approved Series 3000 MkIII toxic and oxygen transmitter, painted Marine Grade Al and 2 x M20 entries, S3KAS3 ATEX/IECEx approved Series 3000 MkIII toxic and oxygen transmitter, Stainless Steel 316 and 2 x M20 entries
View productSKU: XNX
Honeywell XNX Fixed Gas Detector
- Gas Detection Class Fixed
- ATEX ATEX
- Power Consumption XNX used with: electrochemical sensor: 6.2 watts; millivolt (catalytic bead or IR cell): 6.5 watts
- Cable Entry 5 conduits/cable entries – (2 right, 2 left, 1 bottom) Available in ¾” NPT, or M25
- Display Backlit LCD
- Gas Type Combustible Gases, Carbon Monoxide - CO, Flammable - LEL, Methane - CH4
- Brand Honeywell
View productSKU: 10204450
MSA Chillgard 5000 Control Panel
- Gas Detection Class Fixed
- ATEX Non ATEX
- Power Consumption 100–240 Vac, 50/60 Hz, 200 VA maximum Supply voltage not to fluctuate more than ±10%
- Temperature 32–122°F (0 to 50°C)
- Output 4–20 mA sourcing, 250 Ohm load; 0–10 V, 2 K Ohm minimum load; RS485 Modbus RTU; RS-485 BACnet MS/TP
- Brand MSA
View productSKU: MSA-CHILLGARD5-RF
MSA Chillgard 5000 Refrigerant Control Panel
- Gas Detection Class Fixed
- ATEX Non ATEX
- Temperature 32°F to 122°F (0°C to 50°C)
- Output None
- Gas Type Refrigerants
- Brand MSA
View productSKU: S5000-2-0-2-1-00-D36-000-0
MSA General Monitors S5000 Fixed Gas Detector
- Gas Detection Class Fixed
- ATEX ATEX
- Temperature -55°C to +75°C
- Output Dual 4-20 mA current source or sink, HART, Modbus, Bluetooth. Optional: w/o Bluetooth
- Power Consumption 24 VDC nominal, 12 to 30 VDC
- Gas Type Oxygen - O2, Ammonia - NH3, Sulfur Dioxide - SO2, Carbon Monoxide - CO, Chlorine - Cl2, Chlorine Dioxide - ClO2, Hydrogen Chloride - HCl, Hydrogen Cyanide, Hydrogen Fluoride - HF, Hydrogen Sulfide - H2S, Nitrogen Dioxide - NO2, Combustible Gases, Nitric Oxide - NO
- Brand MSA
View productSKU: IR5500-2-1-1-1-2-2-2-2-3-1
MSA IR5500 Open Path Fixed Gas Detector
- Gas Detection Class Fixed
- ATEX ATEX
- Temperature -67°F to +149°F (-55°C to +65°C)
- Output Modbus RTU with block and single data transfer modes
- Power Consumption 20 to 36 VDC range, 24 VDC nominal
- Gas Type Methane - CH4, Propane - C3H8, Infrared
- Brand MSA
View productSKU: PRIMAX-IR-AN-ATEX 2-I01-U100-EN
MSA PrimaX I Fixed Gas Detector
- Gas Detection Class Fixed
- ATEX ATEX
- Temperature –50 °C to +80 °C
- Gas Type Hydrogen Chloride - HCl, Hydrogen Cyanide, Hydrogen Sulfide - H2S, Nitrogen Dioxide - NO2, Nitric Oxide - NO, Oxygen - O2, Sulfur Dioxide - SO2, Ammonia - NH3, Carbon Monoxide - CO, Chlorine - Cl2, Hydrogen - H
- Brand MSA
View productSKU: 10122228
MSA PrimaX IR Fixed Gas Detector
- Gas Detection Class Fixed
- ATEX ATEX
- Temperature -50˚C to 75˚C (-58˚F to 167˚F)
- Output 4-20mA 3-wire current source with HART protocol
- Gas Type Combustible Gases, Hydrocarbon gases & vapours
- Brand MSA
View productSKU: A-PRIMAX-1-SM-ATEX-1-1-V25D-EN-8-Y-N-Y-N-N
MSA PrimaX P Fixed Gas Detector
- Gas Detection Class Fixed
- ATEX ATEX
- Temperature 40 °C to +70 °C
- Output The device operates with a 4–20 mA output signal.
- Power Consumption 3 watt typical at 24 VDC
- Gas Type Nitrogen Dioxide - NO2, Nitric Oxide - NO, Oxygen - O2, Ammonia - NH3, Propane - C3H8, Carbon Monoxide - CO, Sulfur Dioxide - SO2, Chlorine - Cl2, Hydrogen - H, Hydrogen Chloride - HCl, Hydrogen Cyanide, Hydrogen Sulfide - H2S, Methane - CH4
- Brand MSA
View product
FAQs
A fixed gas detector is fixed to the wall and continuously monitors hazardous gases in a certain area. Fixed gas detectors are designed to provide ongoing protection in areas such as chemical plants, oil refineries, wastewater facilities, and confined spaces. They can detect toxic gases, combustible gases, and oxygen levels, triggering alarms or alerting control systems when gas levels exceed set limits.
Common gases include hydrogen sulphide (H₂S), carbon monoxide (CO), oxygen (O₂), flammable gases such as methane and propane, ammonia (NH₃), chlorine (Cl₂), and volatile organic compounds (VOCs).
The main difference is that fixed gas detectors are permanently installed to continuously monitor an area, while portable gas detectors are wearable devices used to detect gases within the breathing zone. Fixed detectors are for ongoing hazard monitoring in high risk areas, such as industrial plants, tanks, or confined spaces, and can be linked to control panels. Portable detectors are more flexible and used for spot checks or temporary monitoring but do not provide continuous area wide protection.
Fixed gas detectors require regular maintenance and calibration to ensure they provide accurate readings. Most manufacturers recommend calibration every six to twelve months, depending on usage, the type of gas monitored, and environmental conditions. Routine bump testing or functional checks should be carried out periodically to confirm the detectors are responding correctly to gas exposure.
Rockall Safety have a range of service plans available for fixed gas detector customers, contact us for more information.
Yes, fixed gas detectors used in hazardous areas should be ATEX or IECEx certified. These certifications indicate that the detector is safe for use in explosive atmospheres, such as oil and gas production sites, chemical plants, and other high-risk environments. For more information on ATEX environments, click here: Fixed gas detection and hazardous zones
Yes, most fixed gas detectors and flame detectors can be integrated with building management systems, fire alarms, and emergency shutdown systems. This is important for large industrial sites, where early detection and coordinated response can prevent accidents and minimise downtime.
A flame detector is a specialised fixed detector designed to sense the presence of flames. Flame detectors use optical sensors to detect ultraviolet (UV), infrared (IR), or a combination of both emissions from flames. They are installed in oil and gas facilities, chemical plants, and industrial sites where fire hazards are high.
A control panel is the central hub for monitoring and managing multiple fixed gas detectors. The control panel receives signals from gas detectors, displays real time readings, logs events, and can trigger alarms, ventilation systems, or emergency shutdowns.