O2, CH4, CO and H2S
O2, CH4, CO and H2S
BH-4M CCS-Certified Portable Multi-Gas Detector
Portable Multi-Gas Detector · Bosean
Portable multi-gas detector presented for marine and industrial safety. Bosean lists O2, CH4, CO and H2S, natural-diffusion sampling, colour display and CCS certification.
- O2, CH4, CO and H2S
- Natural diffusion
- 1–4 gas combination
- Colour LCD
- Four-mode alarm
- CCS certification highlighted
Detection Gas / ParametersO2, CH4, CO, H2S
Product TypePortable Multi-Gas Detector
BrandBosean
The installed sensor package, measurement ranges and available options depend on the ordered configuration. Confirm the final specification before application.
BH-4M · Portable Multi-Gas Detector
BH-4M CCS-Certified Portable Multi-Gas Detector for Marine Safety
Portable multi-gas detector presented for marine and industrial safety. Bosean lists O2, CH4, CO and H2S, natural-diffusion sampling, colour display and CCS certification.
The model should be selected against the target measurement, operating environment and required system interface. Where a product family offers multiple sensors or hardware versions, the ordered configuration—not the full option list—defines the instrument supplied.
01 / Product Highlights
Key Features
Product functions and configuration points relevant to equipment selection.
Natural diffusion
Natural diffusion
1–4 gas combination
1–4 gas combination
Colour LCD
Colour LCD
Four-mode alarm
Four-mode alarm
CCS certification highlighted
CCS certification highlighted
02 / Engineering Data
Technical Specifications
Values below are limited to information identified in supplier material. Confirm the current datasheet for the exact model revision and ordered configuration.
| Parameter | Specification |
|---|---|
| Reference | T90 <30 s |
| Reference | 2800 mAh |
| Reference | >10 h |
| Reference | −25 to +55°C |
| Reference | 2-inch 320×240 colour display |
| Reference | IP54 |
| Reference | 160×69×75 mm |
| Reference | approx. 372.5 g |
| Reference | USB PC connection |
Sensor options, measuring ranges, alarm thresholds, interfaces and approvals may vary by configuration. Confirm the final specification before installation or use in a regulated environment.
03 / Measurement Configuration
Detection Gas & Measurement Parameters
The parameters below identify the product’s intended measurement scope. The actual installed channels and ranges must be confirmed for the ordered unit.
| Gas / Parameter | Configuration |
|---|---|
| O2 | Confirm from the ordered sensor configuration |
| CH4 | Confirm from the ordered sensor configuration |
| CO | Confirm from the ordered sensor configuration |
| H2S | Confirm from the ordered sensor configuration |
04 / Use Environments
Typical Applications
Application suitability depends on the measured hazard, instrument configuration and site requirements.
Marine Safety
BH-4M CCS-Certified Portable Multi-Gas Detector can be specified for this environment when its sensor configuration and operating limits match the site requirements.
Ship Engine Rooms
BH-4M CCS-Certified Portable Multi-Gas Detector can be specified for this environment when its sensor configuration and operating limits match the site requirements.
Confined Space
BH-4M CCS-Certified Portable Multi-Gas Detector can be specified for this environment when its sensor configuration and operating limits match the site requirements.
05 / Equipment Selection
How to Specify the BH-4M
Define the measurement task before choosing a product configuration.
- Target measurement: Confirm the gas or environmental parameter and whether more than one channel is required.
- Range and performance: Match the measuring range, resolution, accuracy and response requirements to the application.
- Installation environment: Review temperature, humidity, dust, water exposure, mounting and hazardous-area requirements.
- System integration: Confirm power, analog or digital outputs, communication protocol and alarm interfaces.
- Maintenance: Check calibration, bump-test, sensor replacement and service requirements in the current manual.
06 / Common Questions
Frequently Asked Questions
What does the BH-4M measure?
The product information identifies O2, CH4, CO, H2S. The exact channels and ranges depend on the ordered configuration and should be confirmed against the current datasheet.
Which version of the BH-4M should I select?
Start with the target gas or parameter, required measuring range, installation environment and output requirements. Confirm the final sensor and hardware configuration with the supplier.
Are all listed options included in one standard unit?
No. Options shown for a model family should not be assumed to be installed simultaneously. The quotation and datasheet should identify the exact supplied configuration.
What documents should be checked before installation?
Review the current datasheet, user manual, wiring or mounting information and any certificate required for the intended site.