1–8 configurable gas channels
1–8 configurable gas channels
OT139 8-in-1 Pump-Sampling Multi-Gas Detector
Portable Pump-Sampling Multi-Gas Detector · Otywell
Portable multi-gas instrument for applications requiring active sample collection and a configurable sensor package. The manufacturer lists one-to-eight-gas detection, a built-in pump, colour LCD and fall/SOS alarm functions.
- 1–8 configurable gas channels
- Built-in pump, 600 mL/min listed
- Sampling distance over 20 m listed
- Colour LCD
- Fall alarm and one-click SOS
- Sensor and pump fault prompts
Detection Gas / ParametersLEL, O2, H2S, CO, NH3
Product TypePortable Pump-Sampling Multi-Gas Detector
BrandOtywell
The installed sensor package, measurement ranges and available options depend on the ordered configuration. Confirm the final specification before application.
OT139 · Portable Pump-Sampling Multi-Gas Detector
OT139 8-in-1 Pump-Sampling Multi-Gas Detector for Confined Space
Portable multi-gas instrument for applications requiring active sample collection and a configurable sensor package. The manufacturer lists one-to-eight-gas detection, a built-in pump, colour LCD and fall/SOS alarm functions.
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.
Built-in pump, 600 mL/min listed
Built-in pump, 600 mL/min listed
Sampling distance over 20 m listed
Sampling distance over 20 m listed
Colour LCD
Colour LCD
Fall alarm and one-click SOS
Fall alarm and one-click SOS
Sensor and pump fault prompts
Sensor and pump fault prompts
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 |
|---|---|
| Channels | 1–8 configuration-dependent |
| pump | 600 mL/min |
| sampling distance | >20 m listed |
| Reference | colour LCD |
| Reference | Chinese/English interface |
| Reference | host-computer software optional |
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 |
|---|---|
| LEL | Confirm from the ordered sensor configuration |
| O2 | Confirm from the ordered sensor configuration |
| H2S | Confirm from the ordered sensor configuration |
| CO | Confirm from the ordered sensor configuration |
| NH3 | Confirm from the ordered sensor configuration |
04 / Use Environments
Typical Applications
Application suitability depends on the measured hazard, instrument configuration and site requirements.
Confined Space
OT139 8-in-1 Pump-Sampling Multi-Gas Detector can be specified for this environment when its sensor configuration and operating limits match the site requirements.
Chemical Processing
OT139 8-in-1 Pump-Sampling Multi-Gas Detector can be specified for this environment when its sensor configuration and operating limits match the site requirements.
Water Treatment
OT139 8-in-1 Pump-Sampling Multi-Gas Detector can be specified for this environment when its sensor configuration and operating limits match the site requirements.
Industrial Safety
OT139 8-in-1 Pump-Sampling 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 OT139
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 OT139 measure?
The product information identifies LEL, O2, H2S, CO, NH3. The exact channels and ranges depend on the ordered configuration and should be confirmed against the current datasheet.
Which version of the OT139 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.