Maker, model, serial, photos, nameplates, drawings, quantity, port and ETA.
Sensors, Safety & Instruments
Marine Sensors &
Marine Sensors &
Gas Detector Parts Supplier
Engine-room supply route for gas detection, pressure, temperature, level, speed and alarm-system components.
Request context is structured before supplier routing or quotation work.
OEM route or verified alternative route can be reviewed where appropriate.
Commercial request is prepared for clearer supplier review and buyer reply.
Safety and monitoringGas detection, instruments and alarm components
Technical cross-checkingMaker, model, range, signal type and photos
OEM + verified alternativesRoute review by compatibility and criticality
Port-aware deliveryUrgency, ETA and handover coordination
Instrumentation supplier
Sensor and safety RFQs structured around compatibility, signal type and installation context.
Vessel Core supplies technical buyers with monitoring, alarm, safety and measuring components used across engine-room and ship systems.
If a clean part number is missing, the request can start from maker, model, measuring range, sensor signal, installed panel reference, nameplate, old part photo or drawing. Compatibility context is important before commercial supply routes are reviewed.
Supply scope
Safety, monitoring and instrument components we can structure into an RFQ.
Supply coverage for planned replacement, troubleshooting and time-critical safety-equipment requests.
Gas detectors
Fixed or portable gas-detection components, sensor heads, modules and related spares.
Pressure sensors
Pressure transmitters, switches and sensors by range, thread, signal and installation point.
Temperature sensors
Temperature transmitters, probes, thermocouples and system-specific measuring items.
Thermometers
Local thermometers, temperature indicators and replacement measuring instruments.
Level sensors
Level switches, probes, transmitters and spare parts for tank and system monitoring.
Speed pickups
Speed sensors, pickups, tachometer-related parts and rotation monitoring components.
Alarm components
Alarm-system spares, indicators, modules, contacts and interface components.
Monitoring spares
Monitoring-system components, panel items and replacement control-side parts.
Model index
13 models in this category, filterable.
Start typing a designation, a maker or a part and the rows filter as you go. The full list across the whole site lives on the maker reference page. Full index across every category and maker.
13 models
| Model | Series | Maker | Typical parts |
|---|---|---|---|
| Pac series - the instrument in a pocket | Portable single-gas - Pac series | Dräger | Pac 3500, Pac 5500, Pac 6000, Pac 6500, Pac 7000 and Pac 8000 cover single-gas duty, from a quick check before a space is entered to a personal monitor worn through a watch. The model matters more than it looks: Pac 5500, Pac 7000 and Pac 8000 are lifetime instruments with a replaceable battery and a replaceable sensor, while the Pac 3500 is a fixed-life sealed device. |
| PIR 7000, Regard panels and Draeger-Tubes | Sensor heads, panels and tubes | Dräger | PIR 7000 point infrared sensor heads serve fixed detection points, and Regard 3900 and Regard 7000 control panels are what the Polytron transmitters feed into. Alongside all of the electronics sits the colorimetric Draeger-Tubes system with the accuro hand pump - more than 500 substance tubes, no power required, usable in Ex areas. |
| Polytron 7000 and the signal it sends | Universal transmitter | Dräger | The Polytron 7000 is a universal transmitter supporting 4-20 mA, HART, PROFIBUS and FF outputs. On a replacement enquiry the output type matters as much as the sensor, because the transmitter has to talk to a panel that was wired years earlier and will not be rewired for a spare. |
| Polytron transmitters in the machinery spaces | Fixed transmitters - Polytron series | Dräger | Polytron 3000, Polytron 5100 EC and Polytron 6100 EC WL cover electrochemical duty for toxic gases and oxygen; Polytron 5200 CAT covers flammables on the catalytic principle; Polytron 8100 EC and Polytron 8700 IR sit at the upper end. The suffix is not decoration - it names the measuring principle, and therefore the sensor that can be fitted. |
| Sampling a space from outside it | Pump-capable sampling | Dräger | X-am 7000 and X-am 8000 are pump-capable with hose runs up to 45 m, which is what allows a tank or cargo hold atmosphere to be drawn out and read before anyone goes in. That capability brings its own consumables: pump units, sampling hoses, probes and adapters, none of which are recoverable from the instrument model name alone. |
| X-am series - enclosed-space and tank entry | Portable multi-gas - X-am series | Dräger | X-am 2500, X-am 2800, X-am 5000, X-am 5600, X-am 7000 and X-am 8000 read several gases at once, which is what an entry permit normally asks for. Sensor fit varies between instruments of the same model, so the gases actually configured have to come with the request rather than be assumed from the model name. |
| GX-3R and GX-3R Pro - compact personal instruments | Portable · GX-3R series | Riken Keiki | Small enough to be worn rather than carried. The Pro can be configured for as many as five gases, combining LEL, oxygen, hydrogen sulphide and carbon monoxide with a toxic option such as HCN, NH3, NO2, PH3, SO2 or CO2, which is why two instruments with the same name on the case can need entirely different cells. |
| GX-9000 and GX-9000H - expandable four to six gas | Portable · GX-9000 series | Riken Keiki | Leaves the works with the four standard gases O2, H2S, CO and HC and two further sensor slots that may or may not have been filled on board. The GX-9000H is a high-range hydrogen sulphide variant aimed at oil tankers, so the range, not only the gas, has to be stated when a cell is requested. |
| Multi-gas and VOC portables | Portable · GX-6000 & GX-Force | Riken Keiki | The GX-6000 covers as many as six gases including volatile organic compounds, which brings a different sensor family into the same instrument. The GX-Force is a four-gas instrument. Both are ordered by the gases actually fitted rather than by the maximum the body will accept. |
| RX-8500 - LNG cargo monitoring | Portable · cargo duty | Riken Keiki | Built for LNG carrier cargo monitoring with an infrared methane sensor covering 0-100% LEL and 0-100% by volume with autoranging. An infrared sensor is a different part from the catalytic element used elsewhere for combustibles, and is treated as its own line on an enquiry. |
| SC-01 - single toxic-gas monitor | Fixed · single-gas | Riken Keiki | Built around interchangeable smart sensors that the monitor recognises automatically, so changing the target gas does not call for reconfiguration. That design turns the sensor into a routine consumable, and makes the target gas and range the decisive fields on the RFQ line rather than the monitor type. |
| SD-1 - smart transmitter and detector head | Fixed · detector heads | Riken Keiki | A fixed head with an integrated display, measuring combustibles such as methane and hydrocarbons alongside toxic hydrogen sulphide and carbon monoxide. Because the head carries its own display and smart sensor, the sensor and the transmitter are separable items on a parts list. |
| SD-3 - fixed marine detection system | Fixed · ship systems | Riken Keiki | Installed for engine rooms, pump rooms, bilge areas, ballast tanks and accommodation spaces. A system enquiry usually reaches a supplier as a list of heads, sensors and calibration items for several spaces at once rather than as a single part. |
Nothing matches. Send the designation from the nameplate — we also quote items that are not listed here.
This list indicates coverage. It is not stock on hand and not a claim of affiliation with any manufacturer.
Before dispatch
What leaves here, and what leaves with it.
Vessel Core's own photographs of items prepared for dispatch in 2026. Manufacturer names and markings are visible because they are on the goods: Vessel Core has no dealership, distribution or partnership agreement with any manufacturer shown and operates as an independent spare parts supplier. Documentation shown accompanied these particular units; it is not a general specification for any product line.
What to send
Send enough context to confirm signal, range and installation.
Sensor requests often need more than a short description. Photos of the label, connection, panel, drawing or old part help cross-check range, signal and compatibility.
Vessel and timing
- Vessel name / IMO
- Company name
- Urgency level
- Port / ETA
Equipment reference
- Maker
- Model
- Serial number
- Equipment application
Part request
- Part number
- Description
- Quantity
- OEM / alternative / both
Attachments
- Photos
- Nameplate
- Drawing
- Excel list
Related categories
Connect this RFQ to the wider engine-room supply scope.
Sensors RFQ FAQ
Short answers for technical buyers.
Can you quote sensors without a part number?
Yes. Send maker, model, tag, range, signal type, nameplate photo, drawing or installed component photos. That is often enough to structure the RFQ.
Can you handle time-critical safety-related requests?
Yes. Add vessel / IMO, port, ETA, system criticality and any alarm or safety context so the request can be prioritized correctly.
Can you review alternatives?
Yes, when compatibility and approval context allows it. The supply route should match signal type, measuring range, installation and operational criticality.
Send sensors RFQ
Need sensors, gas detectors or thermometers?
Send maker, model, tag, range, signal type, quantity and port/ETA. Photos, labels, drawings, panel references or Excel lists are welcome.
