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Overview
A crankcase oil mist event on a marine diesel engine gives very little warning — and the window between detectable mist concentration and the conditions that can lead to a crankcase explosion is narrow. For vessels and installations where a reliable, purpose-built crankcase oil mist detector is required and the budget or lead time for a major OEM system is a constraint, the Specs Crankcase Oil Mist Detector provides a practical, field-proven detection solution available in both new and refurbished condition to suit different procurement requirements.
Manufactured by Specs, the Crankcase OMD is a dedicated crankcase oil mist detection unit — a compact, self-contained sensor designed for direct installation on diesel engine crankcases. The unit carries three clearly labelled status LED indicators on its front face (PWR, FLT, ALM — Power, Fault, Alarm) and features a robust black enclosure with an integrated probe assembly for crankcase atmosphere sampling. The Specs branding and build quality visible on the unit are consistent with a purpose-designed marine safety equipment component rather than an adapted industrial sensor.
What makes the Specs Crankcase OMD a practical procurement choice for ship managers and marine engineers is its availability in both new and refurbished condition. For vessels with older diesel engine installations where the cost of a new OEM detection system is difficult to justify against the remaining service life of the engine, a function-tested refurbished Specs OMD provides compliant crankcase protection at a cost point that fits the maintenance economics of aging fleet assets.
Key Features
Dedicated Crankcase Oil Mist Detection — Purpose-Built Sensor
The Specs Crankcase OMD is designed specifically for crankcase oil mist detection on diesel engines — not an adapted general-purpose gas sensor repurposed for marine use. The unit’s probe assembly is configured for direct mounting on the crankcase, positioning the sensing element where crankcase atmosphere can be sampled effectively. Purpose-built design means the unit’s mechanical interface, detection thresholds, and alarm outputs are matched to the crankcase monitoring application from the ground up, rather than being a compromise adaptation of a sensor designed for a different detection task.
Three-Indicator LED Status Panel — PWR, FLT, ALM
The front face of the Specs OMD carries three clearly labelled LED status indicators: PWR (Power), FLT (Fault), and ALM (Alarm). This three-state indicator layout gives any engine room officer or maintenance technician an immediate, unambiguous read of the unit’s operating status during rounds — power confirmed, fault present, or alarm active — without requiring access to a separate controller display or alarm panel. Local LED status indication on the sensor unit itself is a practical operational feature that reduces the time required to assess crankcase monitoring status during routine engine room inspections.
Compact, Self-Contained Enclosure
The Specs OMD is housed in a compact, robust black enclosure that integrates the detection electronics, status indicators, probe assembly, and cable connections in a single self-contained unit. The compact form factor simplifies installation on engines where available mounting space adjacent to the crankcase is limited, and the self-contained design means the unit does not require a separate remote electronics housing — reducing the installation footprint and the number of components that require maintenance attention over the unit’s service life.
Integrated Probe Assembly for Crankcase Atmosphere Sampling
The OMD’s probe assembly — visible as the blue-tipped probe extending from the unit body — is the interface between the detection electronics and the crankcase atmosphere being monitored. The probe is designed for direct insertion into or close proximity to the crankcase atmosphere, drawing or exposing the sensing element to the oil mist-laden atmosphere that the unit is installed to monitor. The probe assembly design is specific to the crankcase installation environment, accounting for the operating temperatures, oil vapour concentrations, and vibration levels characteristic of a diesel engine crankcase.
Available in New and Refurbished Condition
The Specs Crankcase OMD is available in both new condition and refurbished condition — a procurement flexibility that is practically significant for marine maintenance buyers. New units are appropriate for newbuild installations, planned maintenance upgrades, or vessels where the class survey record requires new component certification. Refurbished units — inspected and function-tested before supply — are appropriate for vessels with older diesel engine installations where the maintenance economics favour a cost-effective compliant solution over a new OEM component, and for fleet managers building vessel-carried spare inventories where the carried spare is unlikely to be installed immediately.
Robust Construction for Marine Engine Room Environment
The Specs OMD’s black enclosure and probe assembly are constructed to withstand the operating conditions of a marine engine room — an environment that combines elevated ambient temperature, oil vapour, mechanical vibration from the running engine, and periodic exposure to cleaning operations. The unit’s physical construction, visible in the image as a solid, well-finished enclosure with secure cable entry points and a substantial probe assembly, is consistent with a component designed for continuous service in a marine engine room environment rather than a bench-test or light industrial application.
Technical Specifications
Manufacturer: Specs
Model: Crankcase OMD (Oil Mist Detector)
Description: Specs Crankcase Oil Mist Detector
Application: Diesel engine crankcase oil mist detection
Status Indicators: 3 × LEDs — PWR (Power), FLT (Fault), ALM (Alarm)
Probe Assembly: Integrated, for direct crankcase atmosphere sampling
Enclosure: Compact, self-contained black housing
Cable Connections: Multiple, via integrated cable entry points
Condition Available: New and Refurbished
Benefits
Crankcase explosion protection on diesel engines — the safety outcome that justifies the installation. A functioning crankcase oil mist detector provides the pre-alarm and alarm outputs that give engine room crews the warning they need to reduce engine load and investigate a developing crankcase mist event before it reaches explosive concentrations. The Specs OMD delivers this core safety function in a compact, direct-mount form that can be installed on diesel engines across a range of vessel types and sizes — from main propulsion engines on cargo vessels to generator sets on smaller workboats.
Procurement flexibility — new or refurbished to match maintenance economics. The availability of the Specs OMD in both new and refurbished condition gives procurement teams the flexibility to match component condition to the specific maintenance context. For a new installation or a class survey that requires new component certification, new units are available. For a cost-effective replacement on an older engine or a vessel-carried spare, function-tested refurbished units provide compliant crankcase protection without the cost of a new OEM component — a commercially practical option for fleet operators managing maintenance budgets across aging assets.
Local status indication reduces engine room round time. The PWR, FLT, and ALM LED indicators on the unit face mean that a crew member on engine room rounds can confirm the OMD’s operating status with a single visual check at the unit itself — no need to cross-reference a remote controller display or alarm panel to determine whether the crankcase monitoring system is powered, healthy, and active. In a busy engine room where rounds cover many systems, local indicator clarity directly reduces the time and attention required to confirm safety system status.
Compact installation footprint suits constrained engine room layouts. The Specs OMD’s self-contained enclosure and integrated probe assembly mean that crankcase monitoring can be added or replaced on engines where available mounting space is limited, without requiring a separate remote electronics housing or additional cable infrastructure beyond the unit’s own cable connections. For vessels retrofitting crankcase monitoring during drydock, a compact direct-mount detector reduces the installation scope compared to systems requiring separate sensor and controller unit placement.
Supports ISM Code and class requirements for crankcase explosion protection. Classification society rules and SOLAS requirements mandate crankcase oil mist monitoring on diesel engines above specified bore sizes. Installing and maintaining a functioning crankcase OMD is a direct compliance requirement for many vessel types. The Specs Crankcase OMD provides the detection function required to maintain compliance with these requirements on vessels where the installed detection system has failed, is no longer serviceable, or has been identified as requiring replacement during class survey preparation.
Who It’s For
The Chief Engineer Sourcing a Replacement OMD During a Port Call or Drydock
Your vessel’s crankcase oil mist detector has failed a function test or is showing a persistent fault indication, and you need a replacement unit before the next class survey or before departing port. You need a supplier who stocks the Specs Crankcase OMD in new or refurbished condition, can confirm availability against your vessel’s departure schedule, and can provide the unit with the documentation required for your class survey record. You want a direct-mount replacement that installs on your existing crankcase mounting without requiring a full system redesign.
The Ship Management Company Procurement Team Building Vessel Spare Parts Inventories
You manage spare parts procurement across a fleet of vessels with Specs crankcase OMD installations, and you want to ensure each vessel carries a spare OMD unit so that a detector failure can be rectified on board without waiting for port procurement. You need a supplier who holds stock of both new and refurbished Specs OMD units, can supply against fleet-level purchase orders, and can provide function-tested refurbished units with appropriate documentation for vessels where the maintenance programme supports refurbished component use.
The Marine Electronics Engineer or Ship Repair Yard
You carry out safety system maintenance and survey preparation work on vessels during drydock periods, and you regularly encounter vessels with Specs crankcase OMD units that have reached their service life limit or failed functional testing during pre-survey inspection. You need a reliable supply of Specs OMD units — new or refurbished — that you can turn around quickly within the drydock schedule, with the documentation required to support the class survey record for each vessel.
Possible Applications
- Main propulsion engine crankcase monitoring on cargo vessels and tankers — Direct-mount crankcase oil mist detection on medium-speed diesel main engines subject to SOLAS and class requirements for crankcase explosion protection
- Auxiliary diesel generator engine monitoring — Crankcase OMD installation on generator sets aboard vessels where crankcase explosion protection is required on auxiliary engines as well as main propulsion
- Drydock replacement during class renewal survey preparation — Replacement of failed or end-of-life crankcase OMD units during scheduled drydocking to ensure crankcase monitoring systems pass functional testing as part of class survey preparation
- Vessel-carried spare for Specs OMD installations — Refurbished Specs OMD units carried as vessel spares on vessels with Specs crankcase monitoring installations, for immediate on-board replacement in the event of a sensor failure
- Offshore supply vessels and workboats with diesel engine installations — Crankcase protection on medium and high-speed diesel engines in offshore support vessels operating in environments where IP-rated, robust construction is a practical operating requirement
- Retrofit crankcase monitoring on older vessels — Installation of crankcase OMD units on older diesel-engine vessels where the original crankcase monitoring equipment has failed, been removed, or is no longer supported by the original manufacturer
- Fleet spare parts provisioning for ship management companies — Stock procurement of new and refurbished Specs OMD units for ship managers maintaining crankcase monitoring spare parts inventories across managed fleets with Specs detector installations
Trust and Certifications
Specs — Dedicated Marine Safety Equipment Manufacturer
The Specs Crankcase OMD is manufactured by Specs, a dedicated marine safety equipment manufacturer whose product range is focused on crankcase oil mist detection and related marine engine safety applications. The Specs brand logo and product labelling visible on the unit are consistent with a manufacturer whose products are designed, built, and supported specifically for the marine industry — not a generic industrial equipment supplier adapting commercial products for marine use. For procurement teams sourcing crankcase protection equipment, a manufacturer with a focused marine safety equipment background provides relevant technical credibility for the specific application.
New and Refurbished Condition — Function-Tested Before Supply
Refurbished Specs OMD units supplied through our team are inspected and function-tested before supply. For marine safety system components where operational reliability is directly linked to crew safety and vessel compliance status, tested refurbished condition provides documented functional assurance that untested used components cannot offer. New units are supplied in original condition with full manufacturer documentation. Both conditions are clearly identified in the product listing so procurement teams can make an informed selection based on their specific maintenance and survey requirements.
Classification Society Compliance Support
The Specs Crankcase OMD is a crankcase oil mist detection device designed for use in compliance with SOLAS and classification society requirements for crankcase explosion protection on diesel engines. For vessels subject to class survey requirements for crankcase monitoring, the OMD provides the detection function required to maintain a compliant crankcase explosion protection system. Procurement teams and chief engineers sourcing replacement OMD units for class survey purposes should confirm the specific documentation requirements of their classification society and flag state with their class surveyor before ordering.
Supplied Through Alright Engineering Solutions — Marine Safety Equipment Specialist
The Specs Crankcase Oil Mist Detector is supplied through Alright Engineering Solutions Pte. Ltd., an authorised distributor of gas detection equipment and marine safety system components based in Singapore. Our team maintains stock of both new and refurbished Specs OMD units and can provide local procurement support and technical guidance for marine crankcase monitoring applications across the Singapore and regional market.
Accessories and Variants
New Condition Units
New Specs Crankcase OMD units are available for installations requiring new component certification, newbuild projects, or planned maintenance programmes where the vessel’s maintenance record specifies new OEM-condition components. Contact our team to confirm new unit availability and lead time against your vessel’s maintenance or survey schedule.
Refurbished Condition Units
Refurbished Specs Crankcase OMD units — inspected and function-tested before supply — are available for cost-effective replacement installations on older diesel engine vessels, vessel-carried spare provisioning, and fleet maintenance programmes where refurbished component use is supported by the vessel’s planned maintenance system. Contact our team to confirm refurbished unit availability and to request documentation for your class survey record.
Related Oil Mist Detection Products
Daihatsu MD-9M Oil Mist Detector — Complete Daihatsu multi-sensor oil mist detection system for Daihatsu diesel engine installations
Daihatsu MD-9M Detector Head — Replacement sensor unit for Daihatsu MD-9M installations
Daihatsu MD-SX Oil Mist Detector — Per-cylinder crankcase oil mist detection system for low, medium, and high-speed diesel engines
Additional crankcase OMD brands and models — Contact our team with your engine make, model, and existing detector brand for compatible replacement unit recommendations
Get in Touch
If you need to source a Specs Crankcase Oil Mist Detector — in new or refurbished condition — for a vessel replacement, drydock programme, or fleet spare parts inventory, contact our team to confirm stock availability and request a formal quotation.
Tell us your vessel type, engine make and model, and whether you require new or refurbished condition, and we’ll come back to you with availability and pricing promptly.
📍 3791 Jalan Bukit Merah #06-01, E-Centre @ Redhill, Singapore 159471
