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OT137S 6 in1 Portable Gas Detector

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OT137S 6 in1 Portable Gas Detector

OT137S 6 in1 Portable Gas Detector

Configure OT137S for the gases and sampling points at your site, with pumped sampling, clear local alarms and records for follow-up.

  • Check the air before approaching

    The built-in pump draws a sample from a probe or sampling line so crews can check a difficult-to-reach location from a safer position.

  • Match the gases you need to monitor

    Choose the compatible sensor types and measuring ranges for the hazards identified at your site; confirm the final gas combination before ordering.

  • Make alarms easier to act on

    Audible, visual and vibration warnings draw attention to changing readings, while stored data supports later review and calibration planning.

Built-in pump suction · Sensor combination and wireless functions by configuration

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Overview

 OT137S 6 in1 Portable Gas Detector  Photoionization Detector adopts dot matrix display technology and Chinese and English interface switching. It can detect a variety of flammable and toxic and harmful gases at the same time. It can be replaced with different sensor types anytime and anywhere, and the detection results are displayed on the screen at the same time. Using modular sensor elements, they can be replaced anytime and anywhere. The built-in pump-type gas detector has a color LCD display and the module sensor can be replaced with different sensor types at will, and the detection results are displayed on the screen at the same time.

Key Features

Gas Selection & Sampling

  • Configure compatible sensor types and ranges for the target combustible and toxic gases; confirm the final combination for the order.
  • Built-in pump-suction sampling for checks through a compatible probe or sampling line.

Alarms & Worker Response

  • Audible, visual and vibration alarms; low/high, interval and TWA/STEL alarm modes depend on the selected sensors and settings.
  • Low-voltage, fault, fall and call-for-help alerts; confirm which emergency functions are enabled in the supplied configuration.

Display & Interface

  • Color LCD shows gas readings, alarm and communication status, and remaining power.
  • Chinese/English interface switching; built-in Linux operating system.

Connectivity & Records

  • Compatible confined-space probes and portable detectors can be linked where supported by the specified setup.
  • Stored readings support review; confirm the export method and retention settings for your configuration.
  • BeiDou/GPRS positioning and other wireless communication options are subject to the ordered module and local network support.

Calibration & Settings

  • Multi-level calibration and automatic zero-point tracking.
  • Factory-setting restore and safeguards against incorrect concentration-calibration steps.

Power & Protection

  • Magnetic charging connection; the listed runtime is more than 10 hours for the combustible-gas configuration.
  • IP68 protection rating is listed in the current product specifications; confirm the rating for the ordered variant.

Technical Specifications

Detection gas

flammable/toxic and harmful gases

Measuring range

(0~ 100%)LEL;

Detection principle

catalysis; electrochemistry; semiconductor; infrared; PID

Detection method

Built-in pump suction type

Accuracy

+3%FS

Display

LCD liquid crystal display

Alarm method

sound and light vibration alarm

Charging

Magnetic charging method

Language

Automatic switching between Chinese and English

Relative humidity

 <93%

Use time

more than 10 hours (combustible)

Protection level

IP68

Communication method

infrared, Bluetooth, lora and other wireless communication methods

Data storage

store 100,000 pieces of data

Optional function

supports IoT transmission (optional),Support intercom function (optional)

Available Gases & Detection Ranges

The gases and ranges below are configuration options.OT135S Portable Multi Gas Analyzer; confirm the final sensor combination and ranges with our team.

Common Gas Parameter listing
Gas detected Measuring Range Optional Range Resolution Rat Response Time
LEL -combustible gas 0-100%LEL 0-100%VOL (Infrared or catalytic ) 1%LEL/1%vol ≤10s
carbon monoxide 0-1000PPm 0-500/2000/5000PPm 0.1/1PPm ≤10s
TVOC 0-100PPM 0-100PPM 0.1PPm/1PPM ≤15s
hydrogen 0-100%LEL 0-1000PPM 1%LEL/1PPM ≤15s
natural gas 0-100%LEL 0-100%LEL 1%LEL ≤10s
Oxygen-O2 0-30%VOL 0-30%、0-100%VOL 0.1%vol ≤10s
ozone 0-10PPm 0-20、100PPm 0.01PPm/0.1PPM ≤15s
hydrogen sulfide-H2S 0-100PPm 0-50、200、1000PPm 1/0.1PPm ≤10s
Methane-CH4 0-100%LEL 0-100%VOL 1%LEL/1%vol ≤10s
fluorine 0-10PM 0-1、10PPM 1/0.1PPm ≤15s
hydrogen chloride 0-20PPm 0-20/50PPm/100PPM 0.01/0.1PPm ≤15s
Nitrogen-N2 0-30%VOL 0-30%VOL、100%VOL 0.1%LEL/1PPM ≤10s
hydrogen 0-100%LEL 0-1000PPm 1%LEL/0.1PPm ≤15s
chlorine 0-20PPm 0-10、100PPm 0.1PPm ≤15s
ammonia gas 0-100PPm 0-50、500、1000PPm 1/0.1PPm ≤15s
oxynitride 0-20PPm 0-50、1000PPm 0.1/1PPm ≤15s
methanal 0-20PPm 0-50、100PPm 1/0.1PPm ≤15s
sulfur dioxide 0-20PPm 0-50、1000PPm 0.1/1PPm ≤15s
nitric oxide 0-250PPm 0-500、1000PPm 1PPm ≤15s
nitrogen oxide 0-20PPm 0-50、1000PPm 0.1/1PPm ≤15s
phosphine 0-20PPm 0-20、100PPm 0.1PPm ≤15s
acrylonitrile 0-100PPM 0-100PPm 0.1/1PPm ≤15s
carbon dioxide 0-5000PPm 0-1%/5%/10%VOL(Infrared ) 1PPM/0.01%VOL ≤15s
hydrogen fluoride 0-10PPm 0-1、10、50、100PPM 0.01/0.1PPm ≤15s
Xylene/methylbenzene 0-20PPm 0-5、10、50、100PPm 0.01/0.1PPm ≤15s
oxirane 0-100PPm 0-100PPm 1/0.1PPm ≤15s
For other gases and measuring ranges, please contact us directly!
Note: Not all gases and range are listed, if you need more information, please contact us.

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