Gastec GOA-7H/GOA-7H-S is a high-precision portable oxygen detector engineered to provide rapid monitoring of atmospheric oxygen levels, ensuring workplace safety in environments prone to oxygen deficiency or hazardous enrichment.

GASTEC’s Oxygen detector can quickly and accurately measure oxygen concentrations at a variety of different work sites subject to a host of complicated and varying factors.
Specification of GOA-7H/GOA-7H-S Oxygen Detector
| Measurement range | 0.0 – 25.0 % (enhanced range: 25.1 – 42.0 %) |
| Measurement principle | Galvanic cell |
| Sampling method | Diffusion |
| Indicating accuracy | +/- 0.5%(O2) |
| Alarm threshold | <18% |
| Display | Digital LCD |
| Explosion-proof | Certified by Japan Ministry of Health, Labour and Welfare (Class Ex ia ?C T3 Ga / Certification No.TC22879) |
| Operating Temperature / Humidity range | Temperature: -10 – 40 ? Relative humidity: 30 – 90 %RH |
| Power source | One AAA alkaline battery provides about 4000 hours of operation (when no alarm signal is emitted) |
| Dimensions | 48(W) x 37(D) x 105(H) mm |
| Weight | 110g |
The GOA-7H-S comes with a 5 m sensor cord.
- Small, compact, and lightweight, only 110g
- One-touch calibration to oxygen levels of 20.9%
- Explosion-proof
- Low power consumption
Note: The products may not be sold in certain countries and regions.
Feature of Gastec GOA-7H/GOA-7H-S Oxygen Detector
Accurate Measurement: Advanced sensor technology ensures fast and precise readings of oxygen levels.
Digital Screen: Equipped with a screen that displays oxygen concentration in real-time for easy reading.
Automatic Alarm: Audible, visual, and vibrating alarms that activate if oxygen levels fall outside the safe range.
Compact Design: Compact and lightweight, making it easy to carry and use at various work sites.
Easy Calibration Feature: Equipped with an automatic calibration function to maintain the accuracy of the tool in the long run.
High Durability: Resistant to harsh working environments, including dust and moisture.
Energy Saving Mode: Efficient power consumption to ensure long battery life.\
Application of Gastec GOA-7H/GOA-7H-S Oxygen Detector
- Oil and Gas Industry: To monitor oxygen levels at drilling, processing, or storage sites.
- Underground Mining: To detect oxygen deprivation that could potentially endanger workers.
- Laboratories: Ensures a safe working environment during experiments involving inert gases.
- Vessels and Confined Spaces: Avoiding the risk of hypoxia in enclosed spaces such as tanks or engine rooms.
- Firefighting: To check for oxygen-deficient or oxygen-rich environments during a fire.
For More Information & Price: Gastec GOA-7H/GOA-7H-S Oxygen Detector
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