YJJ BW Flex 4 Four-in-One Portable Gas Detector (Catalytic Combustion LEL/O2/CO

Product Specification

Product Description:

YJJ BW Flex 4 Four-in-One Portable Gas Detector (Catalytic Combustion LEL/O2/CO/H2S)

Features:

I. Product Overview

Model: BW Flex 4

Configuration: Catalytic combustion type LEL combustible gas + Oxygen O₂ + Carbon Monoxide CO + Hydrogen Sulfide H₂S four sensor modular portable multi-gas detector

Application: Entry into confined spaces, chemical industry, oil fields, municipal pipelines, ships, underground safety inspections, replacing the old model MCXL-4

Protection Grade: IP66/IP68 Waterproof and dustproof, explosion-proof certifications ATEX, IECEX, CSA, UL, shipboard MED certification

II. Core Parameters of 4 Sensor Module (Catalytic LEL Version) Table

Gas Detection Range Resolution Operating Temperature Range Sensor Type

LEL Flammable Gas 0～100%LEL 1%LEL -20℃～60℃ Catalytic Combustion Type (CB-F)

O₂ Oxygen 0～30%VOL 0.1%VOL -40℃～60℃ Electrochemical Cell

CO Carbon Monoxide 0～2000ppm 1ppm -40℃～60℃ Tri-electrode Electrochemistry

H₂S Hydrogen Sulfide 0～200ppm 1ppm (can be set at 0.1ppm) -40℃～60℃ Tri-electrode Electrochemistry Additional Explanation

Key shortcomings of catalytic LEL: Distorted readings in low-oxygen environments; silicone, high concentrations of hydrogen sulfide can cause sensor poisoning and failure; The NDIR infrared LEL version can avoid the poisoning problem, with the operating temperature range expanded to -40℃.

The expected lifespan of all sensors is 3 to 5 years. It is recommended to calibrate / conduct shock tests once every 6 months.

III. Hardware Specifications of the Entire Machine

Dimensions and Weight

108.2×61.5×43.2mm; The entire machine with a crocodile clip weighs 189g (catalytic LEL model)

Power Supply and Battery Life

Battery charges fully in 4.5 hours; With 8 hours of daily use and 5 days of weekly use, the battery life can last up to 2 months; Supports Bluetooth wireless connection to the mobile APP (Safety Suite) to view data, configure alarm thresholds, and export records

Alarm Method

95dB high-pitched beeping, three-color LED indicator lights, and body vibration triple alarms; Supports low alarm / high alarm / TWA time-weighted average / STEL short-term exposure limit / fault / low battery multi-mode alerts; Gas...

Environmental Tolerance

Humidity 5% to 95% RH (no condensation); The catalytic LEL model operates at a temperature range of -20 to 60℃

IV. Core Advantages

Modular plug-and-play sensors, a single faulty sensor can be replaced separately without requiring the entire machine to be returned for repair, reducing operation and maintenance costs

Single-key simple operation, large screen multi-language display (Chinese / English), real-time synchronization of 4 gas values

Compatible with IntelliDoX automatic calibration station, batch automatic shock tests, calibration, and storage records

IP68 waterproof, can be short-term immersion, stable use in outdoor, underground, and damp ship cabins

Wireless Bluetooth upload of inspection data, remote real-time viewing of personnel gas monitoring status in the control room

Power-on self-check of all sensors, automatically diagnosing circuit and sensor status every 10 minutes, reducing the risk of false alarms

V. Typical Application Scenarios (Standard Four-in-One Catalytic LEL)

Closed-space operations: sewers, cable shafts, tank maintenance, basements, etc., simultaneously detecting oxygen deficiency, flammable leakage, and toxic exhaust gas

Petrochemical / Oil and Gas Station: pump rooms, storage areas, pipeline inspections, monitoring hydrogen sulfide, gas, incomplete combustion CO

Municipal / Gas Industry: gas pipeline emergency repair, septic tanks, landfill sites

Ships / Ports: ship cargo holds, engine rooms, oil safety detection (MED ship certification)

Metallurgy, heat treatment, boiler rooms: combustion exhaust CO, gas leakage, oxygen deficiency protection

Mining, underground pipe galleries: underground toxic and harmful gases for personal safety protection

Specifications: