Industrial Explosion Proof Oxygen Gas Detector with Built-in Imported O2 Sensor and 2 Years Standby Battery

The MiniMeta portable oxygen detector is a fully certified single-gas monitoring tool built for hazardous industrial work zones. It tracks oxygen levels from 0–30% VOL with 0.1% VOL precision, timely alerting operators to dangerous oxygen shortage or over-enrichment risks on-site. Equipped with diffusion electrochemical sensing and disposable long-life dry battery, it delivers two full years of continuous monitoring without routine charging or calibration. Complete explosion-proof certifications, triple alert signals and optional docking & logging modules support full-site occupational safety compliance.

Designed for individual wearable safety protection, MiniMeta O2 single gas monitor holds IECEx, ATEX and EMC global hazardous-area certifications to guarantee safe deployment in flammable and explosive working environments. It relies on diffusion electrochemical sensor hardware, requiring no built-in pump or moving components to cut daily maintenance workload. Its fixed measurement span covers 0–30% VOL oxygen with a tiny 0.1% VOL resolution, delivering test accuracy within ±2–5% FS and T90 response speed between 15–30 seconds. Powered by replaceable 3.6V non-rechargeable dry battery, the unit supports up to two years of uninterrupted standby under regular operating conditions, eliminating frequent power refills and regular calibration cycles to lower long-term equipment running costs. A built-in automatic diagnostic check runs upon every power-on startup to validate sensor integrity and remaining battery capacity. Users may purchase matching single/multi-unit docking stations separately to carry out regular bump testing and full calibration operations for unified equipment management.

Certifications: IECEx, ATEX, EMC

Explosion Proof Standard: Ex ia IIC T4 Ga

Ingress Protection Rating: IP66 / IP68 full dust-proof and submersible design

Target Measured Gas: Oxygen (O₂)

Measuring Range: 0 – 30% VOL

Resolution: 0.1% VOL

Detection Technology: Electrochemical diffusion sensor

Measurement Deviation: ≤ ±2–5% FS (varies by sensor batch) T90

Response Speed: 15 – 30 seconds

Power Source: 3.6V field-replaceable non-rechargeable dry cell

Max Standby Duration: 2 years; no charging or periodic calibration required under normal use

Alarm Output Forms: 95dB acoustic buzzer at 30cm distance + dual high-luminance red LED indicators + vibration reminder

Configurable Alarm Triggers: Low concentration alert, high concentration alert, STEL & TWA cumulative exposure reminder, low battery warning

Ambient Operating Temperature: -20°C ~ +55°C

Allowable Humidity Range: 0 – 95% RH (non-condensing environments only)

Total Weight (with back clip & factory battery): 125g

Form Factor: Compact handheld wearable structure with integrated back clip

Auto power-on self-diagnosis for sensor & battery health

Optional event recording & continuous data storage module

Separate docking station for bump test and calibration access

Real-time screen readouts: Instant O2 concentration, TWA, STEL, maximum & minimum values

Adopts IP66/IP68 fully sealed housing structure, capable of resisting dust accumulation, water splashes and short-term submersion in harsh factory settings; certified Ex ia IIC T4 Ga explosion-proof standard to fit all classified explosive industrial areas.

Single 3.6V dry cell supports two full years of continuous monitoring without power top-ups. Battery components can be swapped directly on-site without professional tools.

No mandatory calibration work needed throughout the 2-year service cycle. Independent replaceable sensor module extends the detector’s total service lifespan. Optional docking equipment centralizes batch bump testing and calibration workflows.

Combined sound, bright light and vibration triple alerts ensure operators spot warnings even in loud, dim workshops. The digital screen displays real-time oxygen data alongside TWA/STEL cumulative exposure metrics for comprehensive risk judgment.

Ultra-light 125g total weight paired with fixed back clip design, easily fastened to work overalls, safety belts or hard hats for all-shift continuous monitoring.

Automatic full equipment self-test activates each time the unit powers on, verifying sensor functionality and battery capacity before personnel enter high-risk areas.

Single/multi-unit calibration docking station; event & continuous data logging module

• Confined space entry inspection: Storage tanks, silos, underground sewage pipelines, manhole tunnels
• Heavy chemical & refinery safety patrols: Petrochemical plants, steel production workshops
• Laboratory inert gas monitoring: Fume hood stations, sealed glove box equipment
• Environmental gas concentration inspection: Hypoxia and oxygen enrichment risk assessment
• Sewage treatment facilities: Anaerobic digester tanks, pump station enclosures
• Underground mining & tunnel construction: Ventilation oxygen level tracking

Shenzhen YuanTe Technology Co., Ltd operates under the registered Safegas brand, founded back in 2010. The enterprise specializes in independent R&D, customized manufacturing and global distribution of gas detection hardware and integrated environmental monitoring solutions. With over sixteen years of vertical industry experience, we deliver targeted safety monitoring solutions for oil & gas exploitation, fine chemical production, environmental governance, electronic manufacturing, municipal infrastructure construction, modern agriculture and household appliance industries. All production lines strictly follow ISO9001 quality management and ISO45001 occupational health safety systems. Core detection products pass authoritative international certification standards including IECEx, ATEX and EMC. Our annual manufacturing output exceeds 80,000 gas detection devices, supplying stable hardware and full after-sales service packages to industrial clients across all continents.

1. Long-term industry accumulation: 16+ years specialized R&D and standardized production experience since establishment in 2010
2. Comprehensive product portfolio: Covers portable single/multi gas detectors, wall-mounted fixed transmitters, industrial gas analyzers, monitoring control hosts, calibration docking equipment and full series supporting spare parts
3. Global authoritative certification system: All core goods pass IECEx, ATEX, EMC international explosion-proof certifications plus domestic CCEP environmental approval to satisfy cross-border market access demands
4. Broad gas & scene adaptability: Customizable detection solutions for hundreds of toxic, flammable and inert gases, serving environmental supervision, heavy industry, municipal engineering, agricultural storage, semiconductor manufacturing and scientific research labs
5. Rigorous R&D and quality control workflow: Self-owned professional R&D laboratory; all production workshops ISO9001 & ISO45001 certified, with complete raw material inspection and finished product aging testing processes
6. Large-scale stable production capacity: Annual output over 80,000 monitoring instruments, standard delivery lead time only 5–7 working days to shorten customer stock cycles
7. Round-the-clock cross-border technical service: 24/7 online after-sales response channel, capable of developing exclusive monitoring schemes tailored to different industry special gas testing demands